Dodge Caliber. Manual - part 903
U110C-LOST FUEL LEVEL MESSAGE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Ignition on.
•
Set Condition:
When the PCM does not receive a fuel level signal over the CAN C circuit. The circuit is constantly monitored.
Possible Causes
CAN C BUS CIRCUIT OPEN OR SHORTED
TOTALLY INTEGRATED POWER MODULE (TIPM)
POWERTRAIN CONTROL MODULE (PCM)
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING) .
Theory of Operation
The fuel level signal is a direct input to the Cluster. The fuel level signal is sent to the TIPM over the CAN B bus
circuit. The PCM receives the fuel level signal from the TIPM over the CAN C bus circuit.
Diagnostic Test
1.
ACTIVE DTC
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.
Ignition on, engine not running.
With a scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
>> Go To 2
No
>> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
2.
U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM) ALSO ACTIVE
With the scan tool read DTCs.
Is the DTC U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM) also set?
Yes
>> Perform the diagnostic procedure for U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM)
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
No
>> Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.
Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
PM
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
9 - 899