Current Communication DTC's identify and repair
After addressing any ECU Internal faults, review the DTC's recorded in the diagnostic report created earlier and comparing to DIAGNOSTIC TROUBLE CODE (DTC) LIST - ALL VEHICLE FAULTS look for current DTC's of category "Communication" to identify any current Communication related DTC's. In particular, if the same fault is reported by multiple ECU'S it's likely to be the cause of faults displayed by other systems addressing this next may resolve faults of the following types without additional action.
Make sure to follow the DTC Repair Instruction provided for any of these DTC's.
Examples of Communication DTC's:
- U0001 High Speed CAN Communication Bus
- U0028 Vehicle Communication Bus A
- U0140 Lost Communication With Body (BCM) Control Module
- U0156 Lost Communication Wth Multimedia System (MHU) Control Module
- U0402 Invalid Data Received From Transmission Control Module
Refer to the following service information or technical bulletins for further information: