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Diagnostic Procedure

WARNING: This page is about a different car, the 2005 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TEST REFERENCE - P0604-INTERNAL TCM

TEST ACTION APPLICABILITY
1 Using the schematics as a guide, inspect the wiring and connectors. Repair as necessary. Pay particular attention to all power and ground circuits.
If there are no possible causes remaining, view repair.
Repair
The Transmission Control Module is reporting internal errors and must be replaced. Refer to the Service Information. WITH THE DRBIII® PERFORM QUICK LEARN .
Perform 45RFE/545RFE TRANSMISSION VERIFICATION TEST - VER 1 .		 All
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