U160E-ECU HARDWARE INTERNAL - BOOT
For a complete wiring diagram, refer to the Wiring Information.
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When Monitored:
Ignition on.
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Set Condition:
The Transmission Control Module (TCM) detects an internal failure.
Possible Causes |
|---|
| TRANSMISSION CONTROL MODULE (TCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
| 1. | Ignition on, engine not running. |
| 2. | With a scan tool, view DTCs. |
Is the status Active for this DTC?
Yes
- Using the schematics as a guide, check the Transmission Control Module (TCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the TCM in accordance with the Service Information.
- Perform the TRANSMISSION VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure).
No
- Go to 2.
2. CHECK WIRING AND CONNECTORS
| 1. | The conditions necessary to set the DTC are not present at this time. |
| 2. | Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. |
| 3. | Wiggle the wires while checking for shorted and open circuits. |
| 4. | Check for any Service Bulletins that may apply. |
Were there any problems found?
Yes
- Repair as necessary.
- Perform the Transmission Verification Test. (Refer to 28 - DTC-Based Diagnostics/MODULE, Transmission Control (TCM) /Standard Procedure).
No