FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Reading Off Diagnostic Trouble Codes (DTCs)




Reading Off Diagnostic Trouble Codes (DTCs)







- Remove the key from the ignition switch.
- Ensure that all doors, the hood and trunk lid are shut.
- Lock the car with the remote control.
- Wait approximately 10 seconds.
- Unlock the car with the remote control.
- Ignition on.
- Read off diagnostic trouble codes (DTCs).

Does diagnostic trouble code (DTC) GLA-421 recur?

Yes - Checking the Connectors

No - Intermittent Fault