Pinpoint Test 4: The Hazard Lamps Are Inoperative/Always On

PINPOINT TEST 4: THE HAZARD LAMPS ARE INOPERATIVE/ALWAYS ON

Normal Operation

The smart junction box (SJB) sends a voltage reference signal to the multifunction switch through circuit (BR/Y). When the hazard lamp switch is engaged, the voltage signal is routed to ground. When the SJB detects a request for the hazard lamps, the SJB sends voltage to the all turn lamps.

- DTC B2071 (Hazard Switch Signal Short to Ground) - an on-demand DTC that sets when the SJB detects a short to ground from the hazard flasher lamp switch input circuit.

Possible Causes
- Wiring, terminals or connectors
- Multifunction switch
- SJB

Diagnostic Procedure

CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Step 1-Step 5:

Step 6-Step 7: