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Stability Assist Module Diagnostic Trouble Code (DTC) Index

NOTE: The need to re-calibrate the stability assist module is indicated by the active/fail lamp flashing. There are other service actions that may require recalibration where there is no flashing lamp. See STABILITY ASSIST MODULE CALIBRATION . The lamp will flash after the clearing of DTC's that are indicated on the stability assist calibration list.
NOTE: Stability assist may be referred to as interactive vehicle dynamics (IVD) in the NGS Tester.
NOTE: DTC C1730 (Reference Voltage Out Of Range) must be repaired before DTC C1279, C1280, C1281, C1282, C1288, C1289.
STABILITY ASSIST MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC Description Source Action
B1342 ECU Is Defective ABS module CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved, INSTALL a new ABS module. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE - STABILITY ASSIST . REPEAT the self-test.
B1485 Brake Pedal Input Circuit Battery Short ABS module Go To PINPOINT TEST B .
B1676 Battery Pack Voltage Out of Range ABS module Go To PINPOINT TEST C .
B2477 Module Configuration Failure ABS module REFER to MODULE CONFIGURATION .
C1095 ABS Hydraulic Pump Motor Circuit Failure ABS module Go To PINPOINT TEST D .
C1145 Speed Wheel Sensor RF Input Circuit Failure ABS module Go To PINPOINT TEST E .
C1155 Speed Wheel Sensor LF Input Circuit Failure ABS module Go To PINPOINT TEST E .
C1165 Speed Wheel Sensor RR Input Circuit Failure ABS module Go To PINPOINT TEST E .
C1175 Speed Wheel Sensor LR Input Circuit Failure ABS module Go To PINPOINT TEST E .
C1233 Speed Wheel LF Input Signal Missing ABS module Go To PINPOINT TEST F .
C1234 Speed Wheel RF Input Signal Missing ABS module Go To PINPOINT TEST F .
C1235 Speed Wheel RR Input Signal Missing ABS module Go To PINPOINT TEST F .
C1236 Speed Wheel LR Input Signal Missing ABS module Go To PINPOINT TEST F .
C1277 Steering Wheel Angle 1 and 2 Circuit Failure ABS module Go To PINPOINT TEST G .
C1278 Steering Wheel Angle 1 and 2 Signal Faulted ABS module Go To PINPOINT TEST G .
C1279 Yaw Rate Sensor Circuit Failure ABS module Go To PINPOINT TEST H .
C1280 Yaw Rate Sensor Signal Fault ABS module Go To PINPOINT TEST H .
C1281 Lateral Accelerometer Circuit Failure ABS module Go To PINPOINT TEST I .
C1282 Lateral Accelerometer Signal Fault ABS module Go To PINPOINT TEST I .
C1285 Booster Solenoid Circuit Failure ABS module Go To PINPOINT TEST J .
C1286 Booster Mechanical Failure ABS module Go To PINPOINT TEST K .
C1287 Booster Pedal Force Switch Circuit Failure ABS module Go To PINPOINT TEST L .
C1288 (1) Pressure Transducer Main/Primary Input Circuit Failure ABS module Go To PINPOINT TEST M .
C1289 (1) Pressure Transducer Redundant/Secondary Input Circuit Failure ABS module Go To PINPOINT TEST N .
C1730 Reference Voltage Out of Range (+5 V) ABS module Go To PINPOINT TEST O .
C1805 Mismatched PCM and/or ABS module ABS module Check for correct component and configuration for the PCM and ABS module. INSTALL new as necessary. REFER to ANTI-LOCK BRAKE SYSTEM (ABS) MODULE - Stability Assist  or REMOVAL, OVERHAUL & INSTALLATION . CLEAR the DTC. REPEAT the self-test.
C1960 Driver Brake Apply Circuit Fault ABS module Go To PINPOINT TEST P .
C1963 Stability Control Inhibit Warning ABS module For additional information about how DTC C1963 can be set, GO to PRINCIPLES OF OPERATION . CLEAR the DTC. REPEAT the self-test. If DTC C1963 is still present, RECALIBRATE the ABS module. REFER to MODULE CONFIGURATION .
C1969 TC/YC Switch Lamp Circuit Fault ABS module Go To PINPOINT TEST S .
U1009 SCP (J1850) Invalid or Missing Data for Engine Torque PCM REFER to SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV .
U1027 SCP (J1850) Invalid or Missing Data for Engine RPM PCM REFER to SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV .
U1059 SCP (J1850) Invalid or Missing Data for Transmission/Transaxle/PRNDL PCM REFER to SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV .
U1073 SCP (J1850) Invalid or Missing Data for Engine Coolant PCM REFER to SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV .
U1243 SCP (J1850) Invalid or Missing Data for Exterior Environment PCM REFER to SELF-DIAGNOSTICS - EEC-V - GASOLINE & NGV .
U1262 SCP (J1850) Communication Bus Fault Network Fault REFER to MODULE COMMUNICATIONS NETWORK .
(1) If DTC C1288 and C1289 are present with a low or spongy brake pedal feel, manually bleed the hydraulic brake system to remove any air in the system. Once the brake pedal is firm, turn the ignition key to the run position, clear the DTCs and firmly apply and release the brake pedal. If the Advance Trac® lamp continues flashing, calibrate the system. Again firmly apply the brake pedal while observing the Advance Trac® warning lamp. If the condition does not return, test-drive the vehicle to verify the repair. Follow this procedure only if DTC C1288 and C1289 are present and the brake pedal has a low or spongy feel. Otherwise, refer to the Anti-Lock Brake System (ABS) Module Diagnostic Trouble Code (DTC) Index.
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