A/C Heater Systems - Manual DTCS
POWERTRAIN CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| P1460 | WOT A/C Cut-Out | SELF-DIAGNOSTICS DTCS |
| P1461 | A/C Pressure Sensor Circuit High Input | SELF-DIAGNOSTICS DTCS |
| P1462 | A/C Pressure Sensor Circuit Low Input | SELF-DIAGNOSTICS DTCS |
| P1463 | A/C Pressure Sensor Insufficient Pressure Change | SELF-DIAGNOSTICS DTCS |
| P1464 | A/C Demand Out Of Test Range | SELF-DIAGNOSTICS DTCS |
| P1469 | Low A/C Cycling Period | SELF-DIAGNOSTICS DTCS |
INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1249 | Blend Door Failure | Q |
| B1342 | ECU Defective | Using NGS tester, clear and document all continuous DTCs. Using NGS tester, perform instrument cluster self-test. If DTC B1342 is retrieved again, replace instrument cluster. See INSTRUMENT CLUSTER MODULE |
| B1676 | Battery Voltage Out Of Range | A |
| B2175 | A/C Request Signal Circuit Short To Ground | F |
| B2513 | Blower Circuit Failure | J |
| C1779 | Blower Switch Failure | J |
| U1131 | SCP (J1850) Invalid Or Missing Data For Fuel System | Caused by Rear Electronic Module (REM). D |
FRONT ELECTRONIC MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1342 | ECU Defective | Using NGS tester, clear and document all continuous DTCs. Using NGS tester, perform FEM self-diagnostic test. If DTC B1342 is retrieved again, replace FEM. See FRONT ELECTRONIC MODULE |
| B2510 | Main Blower Motor Relay Circuit Short To Battery | J |
REAR ELECTRONIC MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1342 | ECU Defective | Using NGS tester, clear and document all continuous DTCs. Using NGS tester, perform REM self-diagnostic test. If DTC B1342 is retrieved again, replace REM. See REAR ELECTRONIC MODULE . |
| B2539 | Aux. A/C Mode Position Reference Circuit Short To Ground (Invalid) | P |
| B2540 | Aux. A/C Mode Position Reference Circuit Short To Battery | P |
| B2543 | Aux. A/C Control Switch Reference Circuit Short To Ground (Invalid) | S |
| B2544 | Aux. A/C Control Switch Reference Circuit Short To Battery | S |
| B2559 | Aux. A/C Blower Motor Relay Circuit Short To Battery | N |
| B2560 | Aux. A/C Blower Motor Relay Circuit Short To Ground | N |
| B2561 | Aux. A/C Blower Speed 1 Circuit Failure | N |
| B2562 | Aux. A/C Blower Speed 1 Circuit Short To Ground | N |
| B2563 | Aux. A/C Blower Speed 2 Circuit Failure | N |
| B2564 | Aux. A/C Blower Speed 2 Circuit Short To Ground | N |