U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM)
 |
For a complete wiring diagram, refer to the Wiring Information.
-
When Monitored:
With the ignition on.
Battery voltage between 10 and 16 volts.
Ignition Off Draw (IOD) fuse installed.
Totally Integrated Power Module (TIPM) is configured correctly.
-
Set Condition:
Bus messages not received from the Totally Integrated Power Module (TIPM) for approximately two to five seconds.
Possible Causes |
|---|
| DIAGNOSTIC CAN C BUS CIRCUITS OPEN OR SHORT |
| DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES |
| TIPM NOT CONFIGURED CORRECTLY |
| TIPM POWER AND GROUND |
| TOTALLY INTEGRATED POWER MODULE (TIPM) |
| MODULE THAT SET THIS DTC |
1. VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE
| NOTE: | Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. |
| 1. | With the scan tool, read active DTCs. |
Is this DTC active?
Yes
- Go To 2
No
- (Refer to 29 - Non-DTC Diagnostics/Communication - Diagnosis and Testing) and perform the STORED LOST COMMUNICATION DTCS diagnostic procedure.
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS
| 1. | With the scan tool, read all active DTCs from all modules. |
| NOTE: | Check for TIPM configuration, CAN 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
No
- Go To 3
3. VERIFY THE TIPM IS ACTIVE ON THE BUS
| 1. | Turn the ignition on. |
| 2. | With the scan tool, select Network Diagnostics. |
| 3. | Verify the TIPM is active on the bus. |
Is the TIPM active on the bus?
Yes
- Go To 4
No
- (Refer to 29 - Non-DTC Diagnostics/Communication - Diagnosis and Testing) and perform the NO RESPONSE FROM TIPM diagnostic procedure.
4. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCS
| 1. | With the scan tool, select Network Diagnostics. |
Is there more than one module with active DTCs “Logged Against” the TIPM?
Yes
- Replace/update the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
- Perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).
No
- Replace/update the module that set this DTC in accordance with the Service Information
- Perform the appropriate verification test for the module being replaced. If there is no verification test for the associated module perform the BODY VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure).