Communication DTCS (U Codes)
DIAGNOSTIC TROUBLE CODE (DTC) CHART
| DTC | Description | Source | Action |
|---|---|---|---|
| U1027 | Missing or Invalid Throttle Message | NGSC Module | CARRY OUT the PCM self-test. REFER to SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE . |
| U1041 | Missing or Invalid Speed Message | NGSC Module | CARRY OUT the ABS self-test. REFER to ANTI-LOCK CONTROL-TRACTION CONTROL or ANTI-LOCK CONTROL-TRACTION CONTROL & STABILIT . |
| U1051 | Missing or Invalid Brake Message | NGSC Module | CARRY OUT the REM self-test. |
| U1059 | Missing or Invalid PRNDL Message | NGSC Module | CARRY OUT the PCM self-test. REFER to SELF-DIAGNOSTICS - CNG, FLEX-FUEL & GASOLINE . |
| U2013 | Compass Module is Not Responding | MC Module | REFER to INFORMATION AND MESSAGE CENTER . |