Diagnostic CAN C (+) and/or Diagnostic CAN C (-) Circuits High

Diagnostic CAN C (+) and/or Diagnostic CAN C (-) Circuits High






For a complete wiring diagram, refer to.

• When Monitored: When the scan tool queries the totally integrated power module.

• Set Condition: The scan tool has detected a shorted high condition on either or both diagnostic CAN C circuits.






Test Step 1 - Check Status of Error Message

• Ensure the vehicle being tested is a CAN bus vehicle. If not, false error messages may be displayed.

• Ensure the scan tool is updated to the latest software.

• With the scan tool, record the error message.

• Disconnect the scan tool from the DLC.

• Cycle the ignition from ON to OFF 3 times.

• Turn the ignition on.

Does the scan tool display the same error message?

Yes

• Go to Test Step 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.

• Perform the Body Verification Test. Refer to => [ Body Verification Test ] Body Interior.

Test Step 2 - Diagnostic CAN C Circuits Shorted to Voltage






• Turn the ignition off.

• Disconnect the totally integrated power module C7 harness connector.

• Disconnect the scan tool from the DLC.

• Turn the ignition on.

• Measure the voltage of the diagnostic CAN C circuits.

Is the voltage more than 6.0 volts for either circuit?

Yes

• Repair the diagnostic CAN C circuits for a short to voltage.

• Perform the Body Verification Test. Refer to => [ Body Verification Test ] Body Interior.

No

• Inspect the wiring and connectors for damage or shorted circuits. If OK, replace the TIPM..

• Perform the Body Verification Test. Refer to => [ Body Verification Test ] Body Interior.