U0114-LOST COMMUNICATION WITH FINAL DRIVE CONTROL MODULE
For a complete wiring diagram, refer to the Wiring Information.
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When Monitored:
Continuously when the ignition is on.
Battery Voltage between 10 and 16 Volts.
Ignition Off Draw (IOD) fuse installed.
Body Control Module (BCM) is configured correctly.
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Set Condition:
The Electronic Limited Slip Differential (ELSD) doesn't receive a Final Drive Control Module (FDCM) (DTCM) message over the CAN C BUS circuit for approximately two to five seconds.
Possible Causes |
|---|
| CAN INTERIOR OR CAN C BUS CIRCUITS OPEN OR SHORTED |
| DIAGNOSTIC TROUBLE CODES (DTC) RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES PRESENT |
| BODY CONTROL MODULE (BCM) NOT CONFIGURED CORRECTLY |
| BODY CONTROL MODULE (BCM) POWER AND GROUND |
| BODY CONTROL MODULE (BCM) |
| DRIVE TRAIN CONTROL MODULE (DTCM) |
VERIFY THE 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 DTCs. |
Is the DTC active at this time?
Yes
- (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing). Perform the diagnostic procedure for U0001-CAN C BUS first if it is present.
- Perform the NAG1 TRANSMISSION VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure).
No
- (Refer to 29 - Non-DTC Diagnostics/Communication - Diagnosis and Testing) and perform the Stored Lost Communication DTCs diagnostic procedure.