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Home >> Jeep >> 2025 >> Grand Cherokee Altitude, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 50 (8P75PH Automatic Transmission - DTCS P0219-00 To P0713-00) >> DTC Troubleshooting >> P064F-00 Unauthorized Software/Calibration Detected >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2025 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
WRONG TRANSMISSION CONTROL MODULE (TCM) SOFTWARE/CALIBRATION INSTALLED
TRANSMISSION CONTROL MODULE (TCM) ASSEMBLY

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .

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