Pinpoint Test O: The Hazard Lamps Are Inoperative
Turn Signal, Cornering and Hazard Lamps
Pinpoint Tests
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 through circuit 383 (RD/WH). When the hazard switch is engaged, the voltage is then routed to the Lighting Control Module (LCM) through circuit 385 (WH/RD). The LCM provides voltage back to the multifunction switch through circuit 44 (LB). 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 Testing and Inspection 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 CIRCUIT 383 (RD/WH) FOR AN OPEN
- 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. TEST the system for normal operation.
No
VERIFY the CJB fuse 10 (15A) is OK. If OK, REPAIR the circuit. TEST the system for normal operation. If not OK, REFER to the Wiring Diagrams to identify the possible causes of the circuit short.
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