U0402-IMPLAUSIBLE DATA RECEIVED FROM TCM
For a complete wiring diagram Refer to Section 8W
- When Monitored:
Continuously while the system is active.
- Set Condition:
An error message has been received over the bus from the Transmission Control Module (TCM).
| Possible Causes |
| INTERMITTENT DTC |
| CAN BUS OPEN OR SHORTED CONDITION |
| TRANSMISSION CONTROL MODULE (TCM) |
| ENGINE CONTROL MODULE (ECM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
Diagnostic Test
1.ACTIVE DTCNOTE: Diagnose all CAN B and C communication DTCs before continuing.
Is the status Active for this DTC?
Yes
- Go To 2
No
- Refer to the INTERMITTENT CONDITION Diagnostic Procedure. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
- Perform the ECM Verification Test Ver. 1.
2.TCM COMMUNICATION RELATED DTC'S IN OTHER MODULES
Are there any TCM communication related DTCs in other modules on the CAN Bus at this time?
Yes
- Replace and program the Transmission Control Module (TCM) in accordance with the Service Information.
- Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
No
- Replace and program the Engine Control Module (ECM) in accordance with the Service Information.
- Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)