Antilock Brake Module (ABS)

U0102-00-LOST COMMUNICATION WITH TRANSFER CASE CONTROL MODULE / AWD

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

- When Monitored:
Ignition run time is greater than one second.

Battery voltage between 9 and 16 volts.

Engine run time greater than three seconds.

- Set Condition:
Bus messages not received from the Drive Train Control Module (DTCM) for approximately two to five seconds.





NOTE: If present, diagnose and repair DTC U0002-88-CAN C BUS OFF PERFORMANCE- BUS OFF before diagnosing this DTC.
VERIFY THE DTC IS ACTIVE
1. Ignition on, engine not running.
2. With the scan tool, read and record the DTCs.
3. With the scan tool, erase the DTCs.
4. Cycle the ignition from off to on.
5. With the scan tool, read the DTCs.

Is the DTC Active at this time?

Yes

- Testing and Inspection and perform the U0102-Lost Communication with Transfer Case Control Module / AWD diagnostic procedure.

No

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