U0114-LOST COMMUNICATION WITH FINAL DRIVE MODULE (TIPM)

For a complete wiring diagram Refer to Section 8W.

Set Condition:
Bus messages not received from the Totally Integrated Power Module (TIPM) for approximately 2 to 5 seconds.

Possible Causes

CAN B BUS CIRCUITS OPEN OR SHORTED

DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES

TIPM NOT CONFIGURED CORRECTLY

TOTALLY INTEGRATED CONTROL MODULE

TOTALLY INTEGRATED CONTROL MODULE POWER AND GROUND

MODULE THAT SET THIS DTC

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

1.VERIFY DTC IS ACTIVE

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

Is this DTC active?

Yes

Refer to the Stored Lost Communication test procedure. Refer to the table of contents in this section.
Perform BODY VERIFICATION TEST – VER 1.

2.CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS

NOTE: Check for TIPM configuration, CAN B or C hardware electrical, VIN Missing/Mismatch, battery or ignition related DTCs.

Does the scan tool display any active DTCs to the conditions listed above?

Yes

Diagnose and repair the DTC. Refer to the Table of Contents for a complete list of the symptoms.
Perform BODY VERIFICATION TEST – VER 1.

3.VERIFY THAT THE TIPM IS ACTIVE ON THE BUS

Is the TIPM active on the bus?

Yes

Refer to the Table of Contents located in this section for a no response test procedure.
Perform BODY VERIFICATION TEST – VER 1.

4.CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCS

Is there more than one module with active DTCs “Logged Against” the TIPM?

Yes

Replace/update the Front Control Module in accordance with the service information.
Perform BODY VERIFICATION TEST – VER 1.

Replace/update the module that set this DTC in accordance with the service information
Perform BODY VERIFICATION TEST – VER 1.