Pinpoint Test F: The Hazard Warning Switch Illumination Is Inoperative

F1 CHECK CIRCUIT 29S-LH54 (OG/GN) FOR AN OPEN
- Disconnect: Hazard Warning Switch C2039.
- With the parking lamps ON, rotate the instrument panel dimmer switch to the full illumination position.
- Measure the voltage between the hazard warning switch C2039-5, circuit 29S-LH54 (OG/GN), harness side and ground.
  
  Fig 1: Checking Circuit 29S-LH54 (OG/GN) For Open
- Is the voltage greater than 10 volts?
Yes : GO to F2.

No : REPAIR the circuit. TEST the system for normal operation.
F2 CHECK CIRCUIT 91-LG8 (BK/OG) FOR AN OPEN
- Turn the parking lamps OFF.
- Measure the resistance between the hazard warning switch C2039-2, circuit 91-LG8 (BK/OG), harness side and ground.
  
  Fig 2: Checking Circuit 91-LG8 (BK/OG) For Open
- Is the resistance less than 5 ohms?
Yes : INSTALL a new hazard warning switch. TEST the system for normal operation.

No : REPAIR the circuit. TEST the system for normal operation.