For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle .
2 | Turn OFF the hazard flashers. Does the system operate normally? | Go to Testing for Electrical Intermittents . | Go to Step 3
3 | With a scan tool, monitor the Hazards data parameter in the Infotainment System data list while pressing the switch several times. Does the scan tool recognise switch activation? | Replace the BCM. Refer to Control Module References , for replacement, setup, and programming. | Replace the Infotainment Fascia. Refer to Driver Information Display Replacement