Diagnostic Test

1) ACTIVE DTC
Ignition on, engine not running.

With a scan tool, select View DTCs.

Is the U1412-IMPLAUSIBLE VEHICLE SPEED SIGNAL RECEIVED Active at this time?

Yes
1. Go to 2).
No
1. Refer to the INTERMITTENT CONDITION Diagnostic Procedure.
2) U0001-NO COMMUNICATION ON THE CAN C BUS CIRCUIT IS ACTIVE
Continue reading DTCs.

Is the U0001-NO COMMUNICATION ON THE CAN C BUS CIRCUIT ACTIVE at this time?

Yes
1. Refer to the Diagnostic Procedure for the U0001-NO COMMUNICATION ON THE CAN C BUS CIRCUIT. Refer to DIAGNOSIS AND TESTING .
No
1. Go to 3).
3) ABS MODULE IS ACTIVE ON THE CAN C BUS
With the scan tool, select ECU View.

Verify that the ABS Module active on the bus.

Is the ABS Module Active on the bus?

Yes
1. Go to 4).
No
1. Refer to DIAGNOSIS AND TESTING for No Response diagnostic procedures.
2. Perform BODY VERIFICATION TEST - VER 1 .
4) ACTIVE DTCS IN THE TIPM
With the scan tool, select ECU View and select TIPM.

With the scan tool, read active DTCs.

Is the U0001-NO COMMUNICATION ON THE CAN C BUS CIRCUIT ACTIVE in the TIPM at this time?

Yes
1. Replace the ABS Module per Service Information.
2. Perform POWERTRAIN VERIFICATION TEST .
No
1. Replace and program the Powertrain Control Module per Service Information.
2. Perform POWERTRAIN VERIFICATION TEST .