U0101-LOST COMMUNICATION WITH TCM
 |
For a complete wiring diagram, refer to the Wiring Information.
Possible Causes
-
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 Transmission Control Module (TCM) for approximately two to five seconds.
Possible Causes |
|---|
| (D65) CAN C BUS(+) CIRCUIT SHORTED TO VOLTAGE |
| (D64) CAN C BUS(-) CIRCUIT SHORTED TO GROUND |
| DTCs RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES |
| TIPM NOT CONFIGURED CORRECTLY |
| TCM POWER AND GROUND |
| TCM (PCM) |
| MODULE THAT SET THIS DTC |
VERIFY 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. | Turn the ignition on. |
| 2. | With the scan tool, read ORC DTCs. |
Does the scan tool display active U0101-LOST COMMUNICATION WITH TCM DTC?
Yes
- (Refer to 28 - DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing) and perform the U0101-Lost Communication with TCM diagnostic procedure.
No
- (Refer to 29 - Non-DTC Diagnostics/Communication - Diagnosis and Testing) and perform the Stored Lost Communication DTCs diagnostic procedure.