REM Diagnostic Trouble Code (DTC) Index
REM DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description | Source | Action |
|---|---|---|---|
| B2539 | Aux A/C Mode Position Reference Circuit Short to Ground (Invalid) | REM | Go To PINPOINT TEST O . |
| B2540 | Aux A/C Mode Position Reference Circuit Short to Battery | REM | Go To PINPOINT TEST O . |
| B2543 | Aux A/C Control Switch Reference Circuit Short to Ground (Invalid) | REM | Go To PINPOINT TEST R . |
| B2544 | Aux A/C Control Switch Reference Circuit Short to Battery | REM | Go To PINPOINT TEST R . |
| B2559 | Aux A/C Blower Motor Relay Circuit Short to Battery | REM | Go To PINPOINT TEST M . |
| B2560 | Aux A/C Blower Motor Relay Circuit Short to Ground | REM | Go To PINPOINT TEST M . |
| B2561 | Aux A/C Blower Speed 1 Circuit Failure | REM | Go To PINPOINT TEST M . |
| B2562 | Aux A/C Blower Speed 1 Circuit Short to Ground | REM | Go To PINPOINT TEST M . |
| B2563 | Aux A/C Blower Speed 2 Circuit Failure | REM | Go To PINPOINT TEST M . |
| B2564 | Aux A/C Blower Speed 2 Circuit Short to Ground | REM | Go To PINPOINT TEST M . |
| U1178 | SCP (J1850) Invalid or Missing Data for Climate Control (HVAC) | ICM | CARRY OUT the IC self-test. |
| U1262 | SCP (J1850) Communication Bus Fault | - | REFER to MODULE COMMUNICATIONS NETWORK . |