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Home › Jeep › 2012 › Wrangler Rubicon, Automatic Trans › Repair and Diagnosis › Transmission › Automatic Trans › Transmission Control Module (TCM) - Electrical Diagnostics › DTC Troubleshooting › P1636-TCM Internal- External Watchdog Performance › Set Condition:

Set Condition:

If the TCM watchdog circuitry external to the microprocessor detects an error.

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