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Home >> Chevrolet >> 2005 >> Cobalt L4-2.2L VIN F >> Repair and Diagnosis >> Body and Frame >> Locks >> Keyless Entry >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Keyless Entry System Inoperative
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Keyless Entry System Inoperative



KEYLESS ENTRY SYSTEM INOPERATIVE

TEST DESCRIPTION

Steps 1-10:




Steps 11-20:




Steps 21-23:




The number below refers to the step number on the diagnostic table.
14. B+ voltage should be present on the serial data terminal when tested with a DMM, but should not illuminate the test lamp. An illuminated test lamp indicates a short to voltage in the serial data circuit.