Test O: The Hazard Lamps Are Inoperative/Always On

PINPOINT TEST O: THE HAZARD LAMPS ARE INOPERATIVE/ALWAYS ON

Normal Operation
The smart junction box (SJB) sends a voltage reference signal to the hazard flasher lamp switch through circuit CLS32 (BN/YE). When the hazard flasher lamp switch is pressed, the voltage signal is routed to ground through circuit GD116 (BK/VT). When the SJB detects a request for the hazard lamps, the SJB provides on/off voltage to the all the turn lamps.

The hazard flasher lamp switch is a momentary contact switch.

- DTC B1875 (Turn Signal/Hazard Switch Signal Circuit Failure) - is an on-demand DTC that sets when the SJB detects a short to ground from the hazard flasher lamp switch input circuit.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Hazard flasher lamp switch
- SJB

O1-O3:

O3-O5:

O6-O7: