Hazard Warning Lamps
WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The hazard switch is integral to the instrument panel switch bank, which provides a hard wired output to the Body Control Module (BCM). Before performing any of the following tests, confirm whether the left and right turn signals operate satisfactorily. Then determine whether the other functions of the instrument panel switch bank are operational. If the turn signals are ineffective or operate improperly, or if the other instrument panel switch bank functions are ineffective, diagnose and repair those problems before attempting to repair the hazard warning lamps system.
| CONDITION | POSSIBLE CAUSES | CORRECTION |
|---|---|---|
| HAZARD WARNING LAMPS DO NOT FLASH | 1. Ineffective instrument panel switch bank. | 1. Test and replace instrument panel switch bank if required. |
| 2. Ineffective BCM inputs or outputs. | 2. Use a diagnostic scan tool to test the BCM inputs and outputs. Refer to the appropriate diagnostic information. | |
| HAZARD WARNING LAMPS DO NOT STOP FLASHING | 1. Ineffective instrument panel switch bank. | 1. Test and replace instrument panel switch bank if required. |
| 2. Ineffective BCM inputs or outputs. | 2. Use a diagnostic scan tool to test the BCM inputs and outputs. Refer to the appropriate diagnostic information. |