Diagnostic Procedure

When keyless entry system fails to function properly, Diagnostic Trouble Code(s) may be stored in Engine Control Module (ECM) memory. See RETRIEVING TROUBLE CODES . For DTC definitions, see DIAGNOSTIC TROUBLE CODE (DTC) INDEX  table. Perform appropriate DTC test under DIAGNOSTIC TESTS. If a fault or symptom exists, but no trouble codes were set, repair by symptom. See SYMPTOM INDEX  under SYSTEM TESTS.