Powertrain Control Module (PCM)

U0001-CAN C BUS

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

- When Monitored:
Continuously when the ignition is on.

Battery voltage between 10 and 16 volts.

Ignition Off Draw (IOD) fuse installed.

- Set Condition:
The controller detects an open, short to ground or a short to voltage on the CAN C Bus circuit.





VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE

NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.

1. Turn the ignition on.
2. With the scan tool, read active DTCs.

Is this DTC active?

Yes

- Testing and Inspection and perform the U0001-CAN C Bus diagnostic procedure.

No

- Stored Lost Communication DTCs and perform the Stored Lost Communication DTCs diagnostic procedure.