Diagnosis And Testing-Power Locks: Notes

WARNING: This page is about a different car, the 2004 Dodge Dakota and 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.

These tests will help to diagnose the hard wired components and circuits of the power lock system. However, these tests may not prove conclusive in the diagnosis of this system. In order to obtain conclusive testing of the power lock and RKE systems, the Programmable Communication Interface (PCI) data bus network and all of the electronic modules that provide inputs to, or receive outputs from the power lock and RKE system components must be checked.

The most reliable, efficient, and accurate means to diagnose the power lock and RKE systems requires the use of a DRBIII(R) scan tool. The DRBIII(R) scan tool can provide confirmation that the PCI data bus is functional, that all of the electronic modules are sending and receiving the proper messages on the PCI data bus, that the Central Timer Module (CTM) is receiving the proper hard wired inputs, and that the power lock motors are being sent the proper hard wired outputs by the CTM.

Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.