U11C2

U11C2-LOST TRANSMISSION MESSAGE

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

- When Monitored:

- With the ignition on.
- Battery voltage between 10 and 16 Volts.
- Totally Integrated Power Module (TIPM) is configured correctly.
- Set Condition:
The Powertrain Control Module (PCM) has not received a Bus message from the Transmission Control Module (TCM) for approximately 500ms.





1. VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE

NOTE: For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.

NOTE: Make sure the battery is fully charged before proceeding.

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

Is this DTC active?

Yes

- Go To 2

No

- Perform the INTERMITTENT CONDITION diagnostic procedure. Intermittent Condition Test.

2. U0101-LOST COMMUNICATION WITH TCM ALSO SET
1. With the scan tool continue reading DTCs.

Is the U0101-LOST COMMUNICATION WITH TCM also set?

Yes

- Perform the U0101 Lost Communication with TCM diagnostic procedure. U0101.

No

- Stored Lost Communication DTCs and perform the Stored Lost Communication DTCs diagnostic procedure.
- Perform the POWERTRAIN VERIFICATION TEST. Powertrain Verification Test.