Pinpoint Test O: The Hazard Lamps Are Inoperative

Turn Signal, Cornering and Hazard Lamps

Pinpoint Test O: The Hazard Lamps Are Inoperative

Refer to Wiring Diagram Set 90, Turn Signal/Stop/Hazard Lamps for schematic and connector information. Diagrams By Number

Normal Operation

The Central Junction Box (CJB) provides voltage to the multifunction switch and when the hazard switch is engaged, the voltage is then routed to the Lighting Control Module (LCM). The LCM provides voltage back to the multifunction switch. The voltage is then routed to all the turn lamps.

This pinpoint test is intended to diagnose the following:

- Fuse
- Wiring, terminals or connectors
- Multifunction switch


PINPOINT TEST O: THE HAZARD LAMPS ARE INOPERATIVE

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

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O1 CHECK THE PARKING LAMP OPERATION


- Ignition OFF.
- Place the headlamp switch in the PARKING LAMPS ON position.
- Do the parking lamps operate correctly?

Yes
GO to O2.

No
REFER to Parking, Rear and License Plate Lamps Special Tool(s) Used With Diagnostics to continue diagnosis of the parking lamps.

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O2 CHECK THE TURN SIGNAL OPERATION


- Place the headlamp switch in the OFF position.
- Ignition ON.
- Place the multifunction switch in the LH and RH TURN positions.
- Do the turn signals operate correctly?

Yes
GO to O3.

No
GO to Pinpoint Test K. Pinpoint Test K: The Turn Signal Lamps Are Inoperative

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O3 CHECK FOR VOLTAGE TO THE MULTIFUNCTION SWITCH


- Ignition OFF.
- Disconnect: Multifunction Switch C202c .
- Measure the voltage between the multifunction switch C202c-6, circuit 383 (RD/WH), harness side and ground.




- Is the voltage greater than 10 volts?

Yes
INSTALL a new multifunction switch. REFER to Steering Column Switches Steering Column Multifunction Switch. TEST the system for normal operation.

No
VERIFY the CJB fuse 10 (15A) is OK. If OK, REPAIR circuit 383 (RD/WH) for an open. TEST the system for normal operation. If not OK, REFER to the Wiring Diagrams to identify the possible causes of the circuit short. Diagrams By Number

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