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What is p1628 code for a 1998 Dodge Grand Caravan with a 3.3L engine?

Vehicle: 1998 Dodge Grand Caravan 3.3L

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Hi there,

This code indicates there isn't any info being sent from the TCM to the ECM. This either indicates a problem with the wiring harness or the transission control module itstel. The wiring must be checked prior to replacing the TCM

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