Pinpoint Test L: One Turn Signal/Hazard Lamp Is Inoperative
WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
- L1 CHECK THE BRAKE LAMPS FOR CORRECT OPERATION
- Key in OFF position.
- Press and release the brake pedal.
- Do the stoplamps operate correctly?
- Yes : GO to L2.
- No : REFER to STOPLAMPS .
- L2 CHECK THE VOLTAGE TO THE INOPERATIVE LAMP
- Key in OFF position.
- Disconnect: Inoperative Turn Signal/Hazard Flasher Lamp.
- Place the hazard flasher lamp switch in the ON position.
- Measure the voltage between lamp connector and ground:
- LH front circuit 3 (LG/WH)
- RH front circuit 2 (WH/LB)
- LH rear circuit 9 (LG/OG)
- RH rear circuit 5 (OG/LB)
- Does the voltage alternate between less than 1 volt and greater than 10 volts?
- Yes : REPAIR circuit 57 (BK). TEST the system for normal operation.
- No
: If rear lamp, INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES
. TEST the system for normal operation.
If front lamp, GO to L3.
- L3 CHECK THE MULTIFUNCTION SWITCH
- Carry out the multifunction switch component test. Refer to COMPONENT TESTING .
- Is the multifunction switch OK?
- Yes : REPAIR circuit 3 (LG/WH) or 2 (WH/LB) as necessary. TEST the system for normal operation.
- No : INSTALL a new multifunction switch. REFER to STEERING COLUMN SWITCHES . TEST the system for normal operation.