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Hazard Warning Lamps

WARNING: This page is about a different car, the 2019 RAM 3500 HD and 2019 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
CONDITION POSSIBLE CAUSES CORRECTION
HAZARD WARNING LAMPS DO NOT FLASH 1. Ineffective hazard warning switch. 1. Test and replace hazard warning switch 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 hazard warning switch. 1. Test and replace hazard warning switch 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 ACTIVATE ON PANIC BRAKING 1. Ineffective ABS inputs or outputs. 1. Use a diagnostic scan tool to test the ABS inputs and outputs. Refer to the appropriate diagnostic information.
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.
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