Check For Can Bus Communication DTCS
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
WITH THE SCAN TOOL CHECK FOR CAN BUS COMMUNICATION DTCS.
Are there any CAN BUS COMMUNICATION DTCS present?
Yes
NOTE:
Check connectors - Clean and repair as necessary.
- Check CAN Bus Communication lines for possible open or short. Repair the Wiring harness in accordance to the Service Information. Refer to DIAGNOSIS AND TESTING . Recheck the Scan tool, If DTC U142A-00- IMPLAUSIBLE PRNDL SIGNAL RECEIVED is active or any CAN BUS DTCS are active. Refer to DTC INDEX - 2500 HD & 3500 HD and perform the appropriate diagnostic procedure.
- Perform the Occupant Restraint Controller VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
No
- Check that the transmitting ECU (powertrain control module or transmission controller) is communicating. Refer to RESTRAINT SYSTEM INTERMITTENT TEST. Refer to RESTRAINTS SYSTEM INTERMITTENT TEST . With the Scan Tool recheck for communication from the specific module or modules. If communication is Inactive, refer to Non-DTC Diagnostics/Communication. Refer to DIAGNOSIS AND TESTING .