Diagnosis And Testing - Power Locks: Notes

The most reliable, efficient, and accurate means to diagnose the power lock system requires the use of a scan tool and the proper Diagnostic Procedures information. 

Refer to the appropriate wiring information. 

Following are tests that 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 system, the CAN data bus network and all of the electronic modules that provide inputs to, or receive outputs from the power lock system components must be checked.