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Put a new multifunction switch on an it didn't solve the problem, still no power on either side of the headlight fuses

Power at the light switch,turn switch to manual put headlights on power to that side of swith going to multifunction switch, but no power on either side of the two headlight fuse location

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  • david trevigne Dec 10, 2012

    the manual shows that a wire that is hot all the time feeds the light switch, from there when you turn the headlights on it sends the hot thru the dimmer switch which sends the hot to two fuses for low beams and then to the lights also from the dimmer to two relays for high beams i do not have drl so the headlights are on two n15 amp fuses an there is no power on either side of those fuses

  • david trevigne Dec 12, 2012

    the box under the hood is very small/ it contains two relays and a fuse, should i change these relay and see if it makes a difference?

  • david trevigne Dec 12, 2012

    the manual i have is a hayes book very little detail, is there a better manual that i can buy?

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  • Cars & Trucks Master
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The power goes thru the fuse, then thru the headlight switch, then the dimmer switch. If you don't have power at the fuse you may need a shop manual to get the wiring diagrams to trace the circuit back to the battery. Its supposed to be hot all the time.

Posted on Dec 10, 2012

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  •  Stephen
    Stephen Dec 10, 2012

    Mine shows the actual headlight fuses being 10amp, but yes they are after the dimmer switch. I think the 10amp fuses are for low beam and the 15amp is for high but don't quote me on that. Either way, the main feel you spoke of is the 30amp fuse in the box in the engine compartment. If that circuit is dead you may need a schematic to track it back to the battery. If it is hot but nothing is coming out of the dimmer switch that may be your problem.

  •  Stephen
    Stephen Dec 10, 2012

    The main 30amp circuit feeds the dimmer for flash to pass and also the headlight switch.

  •  Stephen
    Stephen Dec 12, 2012

    The diagram I was using is on autozone's website. A regular shop manual from Ford would be the best which you could get from Ebay. There may be more than one box where the 30amp fuse is. Did you check the dimmer switch yet ?

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SOURCE: 2001 subaru outback headlight not working

chapmnfarm: your head lights use a "2" fuse system.
one for the left and one for the right.
The fuse box you are looking for is under the hood on the passenger's side. It is a black box roughly 8 inches long and 4-5 inches wide. When you remove the cover, you will see fuses and relays. What you are looking for is the section in the box which has a cluster of 7 fuses. 3 in one row and 4 in the other. On the outer parameter are two relays. The fuses you are interested in are located in the row of 4 fuses, with the two closest to the "L" shaped part of the box. Both of those should be 15 amp fuses.
The fuse below those should be a 20 amp which is the lighting switch and the one below it is a 15 amp which is for the interior lights and the clock.
Check your harness grounds in the engine compartment near the area you have the problem. There are ground wires which come out of the harness on both sides of the core support. The wires are black in color and have "EYES" crimped onto the ends of the wires. Both of them will probably be located about 4-6 inches below the upper tie bar on each side of the radiator. Odds are that the eyes will be large enough to pass a 6mm bolt through.
I hope what I have given you will resolve your problem. Lem me know,,good luck>>>>>>>>>>>>>>>

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SOURCE: 1979 cadillac eldorado biarritz headlights dont turn on anymore

You don't say if the parking lights and/or tail lights come on. If the rest of the lights are working. Try replacing the dimmer switch on the floor. It's relatively simple to do and cost about $15.00 depending on where you are

Posted on Feb 25, 2010

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Measure the resistance between multifunction switch C202a pin 44, circuit 44 (LB), harness side, and electronic flasher connector pin 1, circuit 44 (LB), harness side; and between multifunction switch C202a pin 44, circuit 44 (LB), harness side, and ground.
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  1. Visually inspect the following for obvious signs of mechanical and electrical damage.

    Visual Inspection Chart Mechanical Electrical
    • Headlamp switch
    • Multifunction switch
    • Battery junction box (BJB) fuse 3 (30A)
    • Central junction box (CJB) fuse:
      • 5 (15A)
      • 16 (20A)
      • 26 (10A)
      • 28 (10A)
    • Wiring harness
    • Loose or corroded connections
    • Headlamp relay (if equipped)
    • DRL relay No. 2 (if equipped)
    • DRL jumper (if equipped)
    • RAP module (if equipped)
    • Central security module (if equipped)
    • Light sensor amplifier (if equipped)
    • Headlamp bulb
  1. If the concern is not visually evident, determine the symptom and proceed to the Symptom Chart.

Symptom Chart
NOTE: Refer to the Wiring Diagrams for connector numbers stated in the pinpoint test.
Symptom Chart Condition Possible Sources Action
  • Both headlamps are inoperative
  • Battery junction box (BJB) fuse 3 (30A).
  • Headlamp switch.
  • Circuitry.
  • Multifunction switch.
  • GO to Pinpoint Test A .
  • The low beams are inoperative
  • Central junction box (CJB).
  • Circuitry.
  • GO to Pinpoint Test B .
  • The high beams are inoperative
  • CJB fuse 16 (20A).
  • Circuitry.
  • CJB.
  • Multifunction switch.
  • GO to Pinpoint Test C .
  • One low beam headlamp is inoperative
  • CJB fuses:
    • 28 (10A) (LH).
    • 26 (10A) (RH).
  • Headlamp bulb.
  • Circuitry.
  • GO to Pinpoint Test D .
  • One high beam headlamp is inoperative
  • Headlamp bulb.
  • Circuitry.
  • GO to Pinpoint Test E .
  • The headlamps are on continuously
  • Headlamp switch.
  • Circuitry.
  • Multifunction switch.
  • Daytime running lamp (DRL) relay No. 2 (if equipped).
  • DRL jumper (if equipped).
  • Headlamp relay (if equipped).
  • Remote anti-theft personality (RAP) module (if equipped).
  • Central security module (if equipped)
  • Light sensor amplifier (if equipped).
  • GO to Pinpoint Test F .
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  • Circuitry.
  • REPAIR circuit 57 (BK). TEST the system for normal operation.
  • The flash-to-pass feature is inoperative
  • Multifunction switch.
  • CHECK circuit 196 (DB/OG) for an open. REPAIR if necessary. If OK, INSTALL a new multifunction switch; REFER to Section 211-05 . TEST the system for normal operation.

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