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Home >> Jeep >> 2018 >> Wrangler JK Rubicon, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 ((Transmission Control Module (TCM) - Electrical Diagnostics)) >> DTC Troubleshooting >> U1601-Ecu Application Software Code 1 Missing Or Corrupted >> Set Condition

Set Condition

WARNING: This page is about a different variant/trim than selected.

When the Transmission Control Module (TCM) detects that its software has been corrupted or is missing.

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