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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 64 (Power Door Lock System And Release Systems) >> Diagnostic Information and Procedures >> Symptoms - Vehicle Access >> Important Preliminary Checks Before Starting

Important Preliminary Checks Before Starting

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform the Diagnostic System Check - Vehicle before using the Symptom Tables in order to verify that all of the following are true:
    • There are no DTCs set.
    • The control modules can communicate via the serial data link.
  2. Review the following description and operations below in order to familiarize yourself with the system functions:
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