FixVault

System Tests: Notes

WARNING: This page is about a different car, the 2002 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: Vehicles are equipped with air bag supplemental restraint system. Before attempting ANY repairs involving steering column, instrument panel or related components, see SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM in appropriate AIR BAG RESTRAINT SYSTEMS article in RESTRAINTS.
SYMPTOM INDEX

Symptom Perform System Test
No Communication With Instrument Cluster A 
Theft Indicator Is Always/Never On-Theft Indicator Will Not Prove out B 
Vehicle Does Not Start-Theft Indicator Proves Out As Normal (1)
Anti-Theft System Does Not Operate Properly-Vehicle Starts But Flashes A Fault Code C 
Anti-Theft Number Of Programmed Ignition Keys Is Below Minimum D 
Antenna Not Connected Or Defective Transceiver E 
Passive Anti-Theft System Ignition Key Transponder Signal Not Received F 
Passive Anti-Theft System Received Incorrect Key-Code From Transponder G 
Passive Anti-Theft System Received Invalid Key-Code Format From Transponder H 
Passive Anti-Theft System Transceiver Signal Is Not Received I 
Security Identification Does Not Match Between Instrument Cluster & PCM J 
NVM Configuration Failure K 
(1) Using WDS or NGS tester, perform instrument cluster self-test. If any DTCs exist, perform appropriate test in accordance with DTC(s) received. See INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE INDEX  table under SELF-DIAGNOSTIC SYSTEM. If no DTCs exist, check for other possible causes of vehicle not starting.