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DTC Advanced Diagnostics: VSA related DTCs (VSA Control Unit)

VSA Related DTCs 

NOTE:
  • Initial Diagnosis:

    The initial on-board diagnosis occurs right after the vehicle condition is turned to the ON mode, and the ABS/VSA indicator comes on, and continues until the indicator goes off.

  • Regular Diagnosis:

    The regular on-board diagnosis begins right after the ABS/VSA indicator goes off, and it continues until the vehicle condition is turned to the OFF (LOCK) mode.

  • Review "How to troubleshoot the VSA system" before doing the DTC troubleshooting procedure.
  • Test-drive the vehicle according to local traffic conditions and regulations. Do not test-drive on a lift unless specified.
  • The possible causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.

DTC C0010-49: Inlet Solenoid (Left Front) Circuit Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Start the engine, and wait for more than 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0011-49: Outlet Solenoid (Left Front) Circuit Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Start the engine, and wait for more than 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0014-49: Inlet Solenoid (Right Front) Circuit Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Start the engine, and wait for more than 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0015-49: Outlet Solenoid (Right Front) Circuit Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Start the engine, and wait for more than 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0018-49: Inlet Solenoid (Left Rear) Circuit Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Start the engine, and wait for more than 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0019-49: Outlet Solenoid (Left Rear) Circuit Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Start the engine, and wait for more than 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C001C-49: Inlet Solenoid (Right Rear) Circuit Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Start the engine, and wait for more than 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C001D-49: Outlet Solenoid (Right Rear) Circuit Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Start the engine, and wait for more than 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0023-12: Brake Diag Circuit ON Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Turn the vehicle to the ON mode and press the brake pedal several times.
Execution Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop ACC function
  • Stop CMBS function
Possible Cause
  • Short to body ground between the VSA modulator-control unit and the brake light relay (BRAKE LAMP line)
  • Brake light relay failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0023-14: Brake Diag Circuit OFF Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Turn the vehicle to the ON mode and press the brake pedal several times.
Execution Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop ACC function
  • Stop CMBS function
Possible Cause
  • Open between the brake pedal position switch and the brake light relay (STOP SW line)
  • Open between the VSA modulator-control unit and the brake light relay (BRAKE DIAG, BRAKE LAMP lines)
  • Brake light relay failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0030-38: Left-Front Magnetic Encoder Malfunction (Pulse Missing) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 8.5 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for more than 30 seconds.
Execution Regular Diagnosis
Duration About 20 seconds (Depending on vehicle speed)
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on (If multiple wheel failures are detected)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (If multiple wheel failures are detected)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Debris on the left-front wheel bearing (magnetic encoder) surface
  • Left-front wheel bearing (magnetic encoder) failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0031-14: Left Front Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 8.5 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for more than 2 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on (If multiple wheel failures are detected)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (If multiple wheel failures are detected)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Open, Short to ground, or Short to another line between the VSA modulator-control unit and the left-front wheel speed sensor (FRL+, FRL- lines)
  • Short to power between the VSA modulator-control unit and the left-front wheel speed sensor (FRL+, FRL- lines)
  • Left-front wheel speed sensor failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0031-62: Left Front Wheel Speed Sensor Signal Compare Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 8.5 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for more than 60 seconds.
Execution Regular Diagnosis
Duration About 60 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on (If multiple wheel failures are detected)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (If multiple wheel failures are detected)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Short to another line between the VSA modulator-control unit and the left-front wheel speed sensor (FRR-, FRL-, RRR-, RRL- lines)
  • Left-front wheel speed sensor incorrect installation
  • Left-front wheel speed sensor failure
  • Left-front wheel bearing (magnetic encoder) failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0033-38: Right-Front Magnetic Encoder Malfunction (Pulse Missing) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 8.5 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for more than 30 seconds.
Execution Regular Diagnosis
Duration About 20 seconds (Depending on vehicle speed)
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on (If multiple wheel failures are detected)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (If multiple wheel failures are detected)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Debris on the right-front wheel bearing (magnetic encoder) surface
  • Right-front wheel bearing (magnetic encoder) failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0034-14: Right-Front Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 8.5 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for more than 2 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on (If multiple wheel failures are detected)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (If multiple wheel failures are detected)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Open, Short to ground, or Short to another line between the VSA modulator-control unit and the right-front wheel speed sensor (FRR+, FRR- lines)
  • Short to power between the VSA modulator-control unit and the right-front wheel speed sensor (FRR+, FRR- lines)
  • Right-front wheel speed sensor failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0034-62: Right Front Wheel Speed Sensor Signal Compare Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 8.5 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for more than 60 seconds.
Execution Regular Diagnosis
Duration About 60 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on (If multiple wheel failures are detected)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (If multiple wheel failures are detected)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Short to another line between the VSA modulator-control unit and the right-front wheel speed sensor (FRR-, FRL-, RRR-, RRL- lines)
  • Right-front wheel speed sensor incorrect installation
  • Right-front wheel speed sensor failure
  • Right-front wheel bearing (magnetic encoder) failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0036-38: Left-Rear Magnetic Encoder Malfunction (Pulse Missing) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 8.5 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for more than 30 seconds.
Execution Regular Diagnosis
Duration About 20 seconds (Depending on vehicle speed)
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on (If multiple wheel failures are detected)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (If multiple wheel failures are detected)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Debris on the left-rear hub bearing unit (magnetic encoder) surface
  • Left-rear hub bearing unit (magnetic encoder) failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0037-14: Left Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 8.5 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for more than 2 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on (If multiple wheel failures are detected)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (If multiple wheel failures are detected)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Open, Short to ground, or Short to another line between the VSA modulator-control unit and the left-rear wheel speed sensor (RRL+, RRL- lines)
  • Short to power between the VSA modulator-control unit and the left-rear wheel speed sensor (RRL+, RRL- lines)
  • Left-rear wheel speed sensor failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0037-62: Left Rear Wheel Speed Sensor Signal Compare Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 8.5 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for more than 60 seconds.
Execution Regular Diagnosis
Duration About 60 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on (If multiple wheel failures are detected)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (If multiple wheel failures are detected)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Short to another line between the VSA modulator-control unit and the left-rear wheel speed sensor (FRR-, FRL-, RRR-, RRL- lines)
  • Left-rear wheel speed sensor incorrect installation
  • Left-rear wheel speed sensor failure
  • Left-rear hub bearing unit (magnetic encoder) failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0039-38: Right-Rear Magnetic Encoder Malfunction (Pulse Missing) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 8.5 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for more than 30 seconds.
Execution Regular Diagnosis
Duration About 20 seconds (Depending on vehicle speed)
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on (If multiple wheel failures are detected)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (If multiple wheel failures are detected)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Debris on the right-rear hub bearing unit (magnetic encoder) surface
  • Right-rear hub bearing unit (magnetic encoder) failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C003A-14: Right Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 8.5 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for more than 2 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on (If multiple wheel failures are detected)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (If multiple wheel failures are detected)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Open, Short to ground, or Short to another line between the VSA modulator-control unit and the right-rear wheel speed sensor (RRR+, RRR- lines)
  • Short to power between the VSA modulator-control unit and the right-rear wheel speed sensor (RRR+, RRR- lines)
  • Right-rear wheel speed sensor failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C003A-62: Right Rear Wheel Speed Sensor Signal Compare Failure 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 8.5 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for more than 60 seconds.
Execution Regular Diagnosis
Duration About 60 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on (If multiple wheel failures are detected)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (If multiple wheel failures are detected)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Short to another line between the VSA modulator-control unit and the right-rear wheel speed sensor (FRR-, FRL-, RRR-, RRL- lines)
  • Right-rear wheel speed sensor incorrect installation
  • Right-rear wheel speed sensor failure
  • Right-rear hub bearing unit (magnetic encoder) failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0040-62: Brake Light Switch Failure (Stuck ON) 

Confirmation Procedure Basic Condition:
  • No other DTCs detected

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 13 mph (20 km/h) or more for more than 6 minutes.
  • Drive immediately at speed of 25 mph (40 km/h) or more, then press the brake pedal and stop the vehicle. (Be careful of the surrounding traffic conditions.)
  • Repeat Driving Pattern steps 2 through 3, 3 times.
Execution Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Short to power between the brake pedal position switch and the PCM (STOP SW line)
  • Brake pedal height incorrect position
  • Brake pedal position switch failure
  • PCM program not the latest
  • PCM internal circuit failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0044-49: Master Cylinder Pressure Sensor Failure (Internal Circuit Failure) 

Confirmation Procedure Operating Condition:
  • Turn the vehicle to the ON mode for more than 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 3 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure (Pressure sensor internal circuit)

DTC C0049-7B: Brake Fluid Level Too Low 

Confirmation Procedure Operating Condition:
  • Turn the vehicle to the ON mode for more than 10 seconds.
Execution Regular Diagnosis
Duration About 10 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Short to ground between the gauge control module (tach) and the brake fluid level switch (BRAKE FLUID LVL line)
  • Low brake fluid level
  • Brake fluid level switch failure
  • Gauge control module failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure (Pressure sensor internal circuit)

DTC C0051-62: Steering Angle Sensor Failure (Signal Compare Failure) 

Confirmation Procedure Operating Condition:
  • Start the engine.
  • Test-drive the vehicle at 31 mph (50 km/h) or more for at least 10 seconds. (Be careful of the surrounding traffic conditions.)
  • Turn the steering wheel stable (45 deg. - 90 deg.) to left.
  • Turn the steering wheel stable (45 deg. - 90 deg.) to right.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 5 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Steering angle sensor failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0051-96: Steering Angle Sensor Failure (Sensor Detects Internal Failure) 

Confirmation Procedure Operating Condition:
  • Start the engine.
  • Test-drive the vehicle at 31 mph (50 km/h) or more for at least 10 seconds.(Be careful of the surrounding traffic conditions.)
  • Turn the steering wheel stable (45 deg. - 90 deg.) to left.
  • Turn the steering wheel stable (45 deg. - 90 deg.) to right.
Execution Regular Diagnosis
Duration About 1 second
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Steering angle sensor failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C0061-49: Built-in Acceleration Sensor Failure (Internal Circuit Failure) 

Confirmation Procedure Operating Condition:
  • Turn the vehicle to the ON mode for more than 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 5 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on*
  • VSA indicator on
Fail Safe Action
  • Stop ABS function*
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function*
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure (Yaw rate-acceleration sensor internal circuit)

*: 4WD vehicle

DTC C0061-62: Built-in Lateral Acceleration Sensor Failure (Signal Compare Failure) 

Confirmation Procedure Basic Condition:
  • No other DTCs detected

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 31 mph (50 km/h) or more for at least 10 seconds.(Be careful of the surrounding traffic conditions.)
  • Turn the steering wheel stable (45 deg. - 90 deg.) to left.
  • Turn the steering wheel stable (45 deg. - 90 deg.) to right.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 3 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure (Yaw rate-acceleration sensor internal circuit)

DTC C0062-62: Built-in Longitudinal Acceleration Sensor Failure (Signal Compare Failure) 

Confirmation Procedure Basic Condition:
  • No other DTCs detected

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 31 mph (50 km/h) or more, then press the brake pedal and stop the vehicle.(Be careful of the surrounding traffic conditions.)
  • Repeat the Driving Pattern step 2, 4 times.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 3 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on*
  • VSA indicator on
Fail Safe Action
  • Stop ABS function*
  • Stop VSA function*
  • Stop TCS function*
  • Stop engine drag torque control function*
  • Stop hill start assist function
  • Stop brake assist function*
  • Stop trailer stability assist control function*
  • Stop agile handling assist control function*
  • Stop CMBS function*
  • Stop ACC function*
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure (Yaw rate-acceleration sensor internal circuit)

*: 4WD vehicle

DTC C0063-49: Built-in Yaw Rate Sensor Failure (Internal Circuit Failure) 

Confirmation Procedure Operating Condition:
  • Turn the vehicle to the ON mode for more than 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 5 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure (Yaw rate-acceleration sensor internal circuit)

DTC C0063-62: Built-in Yaw Rate Sensor Failure (Signal Compare Failure) 

Confirmation Procedure Basic Condition:
  • No other DTCs detected

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 31 mph (50 km/h) or more for at least 10 seconds.(Be careful of the surrounding traffic conditions.)
  • Turn the steering wheel stable (45 deg. - 90 deg.) to left.
  • Turn the steering wheel stable (45 deg. - 90 deg.) to right.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 3 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure (Yaw rate-acceleration sensor internal circuit)

DTC C1000-94: ABS/VSA Activation Time Too Long 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 31 mph (50 km/h) or more for more than 30 seconds.
Execution Regular Diagnosis
Duration About 30 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C1020-49: VSA Master Cut Valve Failure (Unexpected Operation) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Start the engine, and wait for 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C1021-49: VSA Suction Valve Failure (Unexpected Operation) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 10 V

Operating Condition:

  • Start the engine, and wait for 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C1022-14: Power Source Failure for Pump Motor 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage above 9 V

Operating Condition:

  • Start the engine, and wait for 5 seconds.
  • Test-drive the vehicle at 10 mph (15 km/h) or more for at least 20 seconds.
Execution Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Open or Short to ground between the VSA modulator-control unit and the under-hood fuse/relay box (VSA MTR(+B) line)
  • Blown fuse (Under-hood fuse/relay box No. A1-3 (40 A)
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC C1C22-62: Neutral Sensor Failure 

Confirmation Procedure Operating Condition:
  • Start the engine.
  • Test-drive the vehicle at 19 mph (30 km/h) or more for at least 60 seconds.
Execution Regular Diagnosis
Duration About 60 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop hill start assist function
Possible Cause
  • A/T system failure
  • VSA modulator-control unit internal failure

DTC U0029-00: CAN Communication Failure (Bus OFF) 

Confirmation Procedure Operating Condition:
  • Turn the vehicle to the ON mode for more than 5 seconds.
Execution Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Open or Short to another line between the VSA modulator-control unit and the CAN gateway (F-CAN A_H, F-CAN A_L lines)
  • Open or Short to another line between the CAN gateway and other control units (Each CAN lines)
  • Internal failure of another unit on F-CAN
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC U0100-00: CAN Communication Failure With ECM/ISU 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage 10 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 7 mph (10 km/h) or more for more than 5 seconds
Execution Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop brake assist function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Open between the VSA modulator-control unit and the CAN gateway (F-CAN A_H, F-CAN A_L lines)
  • Open between the CAN gateway and the PCM (PGM-FI system) (F-CAN A_H, F-CAN A_L, F-CAN B_H, F-CAN B_L lines)
  • PCM program not the latest
  • PCM failure (PGM-FI system)
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC U0101-00: CAN Communication Failure With PCM/TCM (i-VTM Control Unit) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage 10 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 7 mph (10 km/h) or more for more than 5 seconds
Execution Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop brake assist function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Open between the VSA modulator-control unit and the CAN gateway (F-CAN A_H, F-CAN A_L lines)
  • Open between the CAN gateway and the TCM (F-CAN A_H, F-CAN A_L, F-CAN B_H, F-CAN B_L lines)
  • Open between the CAN gateway and the i-VTM control unit (F-CAN A_H, F-CAN A_L lines)
  • TCM failure
  • i-VTM control unit failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC U0104-00: CAN Communication Failure with ACC 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage 10 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 7 mph (10 km/h) or more for more than 5 seconds
Execution Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • None
Fail Safe Action
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Open between the VSA modulator-control unit and the CAN gateway (F-CAN A_H, F-CAN A_L lines)
  • Open between the CAN gateway and the multipurpose camera unit (F-CAN A_H, F-CAN A_L lines)
  • Multipurpose camera unit program not the latest
  • Multipurpose camera unit internal failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC U0126-00: CAN Communication Failure With Absolute Steering Wheel Angle Sensor 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage 10 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 7 mph (10 km/h) or more for more than 5 seconds
Execution Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop brake assist function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Open between the VSA modulator-control unit and the CAN gateway (F-CAN A_H, F-CAN A_L lines)
  • Open between the CAN gateway and the steering angle sensor (F-CAN A_H, F-CAN A_L lines)
  • Steering angle sensor failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC U0155-00: CAN Communication Failure With METER 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage 10 V

Operating Condition:

  • Start the engine.
  • Test-drive the vehicle at 7 mph (10 km/h) or more for more than 5 seconds
Execution Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop brake assist function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Open between the VSA modulator-control unit and the CAN gateway (F-CAN A_H, F-CAN A_L lines)
  • Open between the CAN gateway and the gauge control module (F-CAN A_H, F-CAN A_L lines)
  • Gauge control module failure
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC U0401-68: ECM Failure 

Confirmation Procedure Operating Condition:
  • Start the engine.
  • Test-drive the vehicle for more than 2 seconds.
Execution Regular Diagnosis
Duration About 1 second
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop trailer stability assist control function
  • Stop brake assist function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • PCM program not the latest
  • PCM failure (PGM-FI system)
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC U3000-49: ECU Internal Circuit Failure 

Confirmation Procedure Operating Condition:
  • Turn the vehicle to the ON mode for more than 5 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • ABS indicator on (Dependant upon the conditions)
  • VSA indicator on (Dependant upon the conditions)
  • Brake system indicator on (Dependant upon the conditions)
Fail Safe Action
  • Stop ABS function (Dependant upon the conditions)
  • Stop VSA function
  • Stop EBD function (Dependant upon the conditions)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC U3000-51: ECU Software Update Failure 

Confirmation Procedure Operating Condition:
  • Turn the vehicle to the ON mode for more than 2 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration -
DTC Type
  • 1 drive cycle
  • ABS indicator on
  • VSA indicator on
  • Brake system indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function
  • Stop TCS function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC U3000-54: ECU Internal Circuit Failure 

Confirmation Procedure Operating Condition:
  • Start the engine, and wait for 5 seconds.
  • Test-drive the vehicle at 7 mph (10 km/h) or more for more than 5 seconds.
Execution Regular Diagnosis
Duration About 2 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
Fail Safe Action
  • Stop VSA function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • VSA sensor neutral position memorization not completed
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC U3006-16: Power Source Failure for ECU (Low Voltage) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage 10 V

Operating Condition:

  • Start the engine, and wait for at least 15 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 10 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
  • VSA indicator on
  • Brake system indicator on (Depends on cases)
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function (Depends on cases)
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • Poor connection between the VSA modulator-control unit and the under-hood fuse/relay box (FSR +B line)
  • Low 12 volt battery voltage
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure

DTC U3006-17: Power Source Failure for ECU (High Voltage) 

Confirmation Procedure Basic Condition:
  • 12 volt battery voltage 10 V

Operating Condition:

  • Start the engine, and wait for at least 15 seconds.
Execution Initial Diagnosis/Regular Diagnosis
Duration About 10 seconds
DTC Type
  • 1 drive cycle
  • VSA indicator on
  • VSA indicator on
  • Brake system indicator on
Fail Safe Action
  • Stop ABS function
  • Stop VSA function
  • Stop EBD function
  • Stop TCS function
  • Stop engine drag torque control function
  • Stop hill start assist function
  • Stop brake assist function
  • Stop trailer stability assist control function
  • Stop agile handling assist control function
  • Stop CMBS function
  • Stop ACC function
Possible Cause
  • High 12 volt battery voltage
  • VSA modulator-control unit program not the latest
  • VSA modulator-control unit internal failure
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