Communication System DTCS (U Codes)
COMMUNICATION SYSTEM DIAGNOSTIC TROUBLE CODE INDEX
| DTC | Description | Source | Action |
|---|---|---|---|
| U1009 | SCP (J1850) Bus Invalid or Missing Data for Engine Torque | ABS Module | REFER to ANTI-LOCK CONTROL or ANTI-LOCK CONTROL-TRACTION CONTROL . |
| U1027 | Invalid or Missing Data for Engine RPM | Instrument Cluster | REFER to INSTRUMENT CLUSTER . |
| U1027 | SCP (J1850) Bus Invalid or Missing Data for Engine RPM | ABS | REFER to ANTI-LOCK CONTROL or ANTI-LOCK CONTROL-TRACTION CONTROL . |
| U1041 | Invalid or Missing Data for Vehicle Speed | Instrument Cluster | REFER to INSTRUMENT CLUSTER . |
| U1073 | Invalid or Missing Data for Engine Coolant | Instrument Cluster | REFER to INSTRUMENT CLUSTER . |
| U1123 | Invalid or Missing Data for Odometer | Instrument Cluster | REFER to INSTRUMENT CLUSTER . |
| U1262 | Communication Bus Fault | Instrument Cluster | REFER to MODULE COMMUNICATIONS NETWORK . |
| U1900 | CAN Communication Bus Fault | Instrument Cluster | REFER to MODULE COMMUNICATIONS NETWORK . |
| U1901 | CAN Communication Bus Fault | Instrument Cluster | REFER to MODULE COMMUNICATIONS NETWORK . |
| U2027 | Left Side Crash Sensor Communication Fault (Non SCP) | RCM | REFER to AIR BAG RESTRAINT SYSTEMS . |
| U2028 | Right Side Crash Sensor Communication Fault (Non SCP) | RCM | REFER to AIR BAG RESTRAINT SYSTEMS . |
| U2196 | Invalid Data for Engine RPM | Instrument Cluster | REFER to INSTRUMENT CLUSTER . |
| U2197 | Invalid Data for Vehicle Speed | Instrument Cluster | REFER to INSTRUMENT CLUSTER . |
| U2199 | Invalid Data for Engine Coolant | Instrument Cluster | REFER to INSTRUMENT CLUSTER . |
| U2200 | Invalid Data for Odometer | Instrument Cluster | REFER to INSTRUMENT CLUSTER . |
| U2516 | CAN Bus Off | RCM | REFER to MODULE COMMUNICATIONS NETWORK . |