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Compass Trailhawk
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Repair and Diagnosis
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Section 154 ((Drivetrain Control Module (DTCM) - Electrical Diagnostics))
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DTC Troubleshooting
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C2020-42-ROM_Failure
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Set Condition
Set Condition
WARNING:
This page is about a different car, the 2019 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
This DTC sets when the DTCM detects a Data Loss failure.