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Home >> Jeep >> 2013 >> Compass Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 121 (Transmission Control Module (TCM) - Electrical Diagnostics) >> DTC Troubleshooting >> P1679-Calibration Not Learned >> Set Condition:

Set Condition:

WARNING: This page is about a different car, the 2012 Jeep Patriot and 2012 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.

The TCM is unable to read the hydraulic calibration data stored in the TCM EEPROM for the period of 5.0 seconds.