Preliminary Checks

IMPORTANT: Review the system operation in order to familiarize yourself with the system functions. Refer to the following:
^ Keyless Entry System Description Description and Operation
^ Keyless Entry System Operation Description and Operation
^ Keyless Entry System Circuit Description Description and Operation

VISUAL/PHYSICAL INSPECTION
^ Inspect for aftermarket devices which could affect the operation of the power mirrors and the power windows systems. Refer to Checking Aftermarket Accessories At Diagnostic Aids Under Diagrams. Diagnostic Aids
^ Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
^ Inspect all related ground points for being clean and tight.

INTERMITTENT
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent and Poor Connections At Diagnostic Aids Under Diagrams. Diagnostic Aids