Diagnostic CAN C (+) Circuit Low

DIAGNOSTIC CAN C (+) CIRCUIT LOW





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
When the scan tool queries the Totally Integrated Power Module (TIPM).

- Set Condition:
The scan tool detects a shorted low condition on the (D72) Diagnostic CAN C (+) circuit.





1. CHECK THE STATUS OF THE ERROR MESSAGE

NOTE: Make sure the vehicle being tested is a CAN Bus Vehicle. If not, false error messages may be displayed.

NOTE: Make sure the scan tool is updated to the latest software.

1. Using the scan tool, record the error message.
2. Disconnect the scan tool from the Data Link Connector (DLC).
3. Cycle the ignition from on to off three times.
4. Turn the ignition on.

Does the scan tool display this same error message?

Yes

- Go To 2

No

- The conditions that caused this error message to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.

2. (D72) DIAGNOSTIC CAN C (+) CIRCUIT SHORTED TO GROUND




1. Turn the ignition off.
2. Disconnect the TIPM C6 harness connector.
3. Disconnect the scan tool from the DLC.
4. Measure the resistance between ground and the (D72) Diagnostic CAN C (+) circuit.

Is the resistance below 100.0 Ohms?

Yes

- Repair the (D72) Diagnostic CAN C (+) circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test

No

- Inspect the wiring and connectors for damage or shorted circuits. If ok, replace the Totally Integrated Power Module.
- Perform the BODY VERIFICATION TEST. Body Verification Test