Inspection Chart For Diagnostic Trouble Codes (DTC)
DTC TROUBLESHOOTING PROCEDURES
| DTC | Description | MIL |
|---|---|---|
| P0420 | Catalyst System Efficiency below Threshold (Bank 1) | • |
| P0430 | Catalyst System Efficiency below Threshold (Bank 2) | • |
| P0441 | Evap. Emission System Incorrect Purge Flow | • |
| P0442 | Evap. Emission System-Leak detected (Small leak) | • |
| P0444 | Evap. Emission System-Purge Ctrl. Valve Circuit Open | • |
| P0445 | Evap. Emission System-Purge Ctrl. Valve Circuit Shorted | • |
| P0447 | Evap. Emission System-Vent Control Circuit Open | • |
| P0448 | Evap. Emission System-Vent Control Circuit Shorted | • |
| P0451 | Evap. Emission System-Pressure Sensor Range/Performance | • |
| P0452 | Evap. Emission System-Pressure Sensor Low Input | • |
| P0453 | Evap. Emission System-Pressure Sensor High Input | • |
| P0454 | Evap. Emission System-Pressure Sensor Intermittent | • |
| P0455 | Evap. Emission System-Leak detected (Large leak) | • |
| P0456 | Evap. Emission System-Leak detected (Very small leak) | • |
| P0461 | Fuel Level Sensor "A" Circuit Range/Performance | • |
| P0462 | Fuel Level Sensor "A" Circuit Low Input | • |
| P0463 | Fuel Level Sensor "A" Circuit High Input | • |
| P0464 | Fuel Level Sensor "A" Circuit Intermittent | • |
| P0480 | Fan 1 Control Circuit Malfunction | • |
| P0501 | Vehicle Speed Sensor A Range/Performance | • |
| P0504 | Brake Switch "A"/"B" Correlation | • |
| P0506 | Idle Air Control System-RPM lower than expected | • |
| P0507 | Idle Air Control System-RPM higher than expected | • |
| P0532 | A/C Refrigerant Pressure Sensor "A" Circuit Low Input | Δ |
| P0533 | A/C Refrigerant Pressure Sensor "A" Circuit High Input | Δ |
| P0562 | System Voltage Low | • |
| P0563 | System Voltage High | • |
| P0571 | Brake Switch "A" Circuit | • |
| P0601 | EEPROM-Check sum Error | • |
| P0602 | EEPROM-Programming Error | • |
| P0604 | Internal Control Module Random Access Memory (RAM) Error | • |
| P0606 | ECM/PCM Processor (ECM-SELF TEST Failed) | Δ |
| P061B | Internal Control Module Torque Calculation Performance | Δ |
| P0630 | VIN not Programmed or Incompatible-ECM/PCM | • |
| P0638 | Throttle Actuator Control Range/Performance | • |
| P0641 | Sensor Reference Voltage "A" Circuit Open | • |
| P0646 | A/C Clutch Relay Control Circuit Low | Δ |
| P0647 | A/C Clutch Relay Control Circuit High | Δ |
| P0650 | Malfunction Indicator Lamp (MIL) Control Circuit | Δ |
| P0651 | Sensor Reference Voltage "B" Circuit Open | • |
| P0660 | Intake Manifold Tuning Valve Control Circuit/Open (Bank 1) | • |
| P0685 | ECM/PCM Power Relay Control Circuit/Open | Δ |
| P1106 | Manifold Absolute Pressure Sensor Circuit Short - Intermittent High Input | Δ |
| P1107 | Manifold Absolute Pressure Sensor Circuit Short - Intermittent Low Input | Δ |
| P1111 | Intake Air Temperature Sensor Circuit Short - Intermittent High Input | Δ |
| P1112 | Intake Air Temperature Sensor Circuit Short - Intermittent Low Input | Δ |
| P1114 | Engine Coolant Temperature Sensor Circuit - Intermittent Low Input | Δ |
| P1115 | Engine Coolant Temperature Sensor Circuit - Intermittent High Input | Δ |
| P1295 | ETC (Electronic Throttle Control) System Malfunction - Power Management | • |
| P1523 | ETC (Electronic Throttle Control) System Malfunction - Throttle Valve Stuck | Δ |
| P161B | PCM Internal Error - Torque Calculation | • |
| P2104 | ETC (Electronic Throttle Control) System Malfunction - Forced Idle | • |
| P2105 | ETC (Electronic Throttle Control) System Malfunction - Forced Engine Shutdown | • |
| P2106 | ETC (Electronic Throttle Control) System Malfunction - Forced Limited Power | • |
| P2122 | Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input | • |
| P2123 | Throttle/Pedal Position Sensor/Switch "D" Circuit High Input | • |
| P2127 | Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input | • |
| P2128 | Throttle/Pedal Position Sensor/Switch "E" Circuit High Input | • |
| P2135 | Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Correlation | • |
| P2138 | Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation | • |
| P2173 | ETC (Electronic Throttle Control) System Malfunction - High Air flow Detected. | • |
| P2187 | System Too Lean at Idle (←Additive) (Bank 1) | • |
| P2188 | System Too Rich at Idle (Bank 1) | • |
| P2189 | System Too Lean at Idle (←Additive) (Bank 2) | • |
| P2190 | System Too Rich at Idle (Bank 2) | • |
| P2195 | HO2S Signal Stuck Lean (Bank 1/Sensor 1) | • |
| P2196 | HO2S Signal Stuck Rich (Bank 1/Sensor 1) | • |
| P2197 | HO2S Signal Stuck Lean (Bank 2/Sensor 1) | • |
| P2198 | HO2S Signal Stuck Rich (Bank 2/Sensor 1) | • |
| P2270 | HO2S Signal Stuck Lean (Bank 1/Sensor 2) | • |
| P2271 | HO2S Signal Stuck Rich (Bank 1/Sensor 2) | • |
| P2272 | HO2S Signal Stuck Lean (Bank 2/Sensor 2) | • |
| P2273 | HO2S Signal Stuck Rich (Bank 2/Sensor 2) | • |
| P2422 | Evap. Emission System-Canister Clogging | • |
| P2610 | ECM/PCM Internal Engine Off Timer Performance | • |
| P2A00 | 02 Sensor Not Ready (Bank 1/Sensor 1) | • |
| P2A03 | 02 Sensor Not Ready (Bank 1/Sensor 2) | • |
| U0001 | CAN Communication Malfunction | • |
|
NOTE:
•: MIL ON & MEMORY
Δ: MIL OFF & MEMORY |
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