Question about 2003 Toyota Tundra

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2003 Tundra. Low beams not working. High beams and fog work ok. Checked lamps, fuses, and relays.

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I suspect the stalk switch is faulty but i would need to test it first with my multimeter first before i changed it .so get you meter and check it out first

Posted on Mar 22, 2011

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2008 ford ranger headlight relay bad? Lamps do not light up, checked BULBS..OK no left highbeam Left and right lamp fuses ok and hi/lo 30a fuse ok


Did you check the fuse circuit for voltage, use a testlite or something.
I posted part of headlamp wiring. You understand your dimmer switch is involved in the circuits.
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High bam and fog lights that just stopped working


Disconnect one of your headlamps and use a multimeter to figure out the positive low beam and ground on the wiring, then using the ohm meter function check the high beam wiring back to the fuses and relays.
If I remember correctly, the fog lights are supposed to turn off when you turn on the high beams. So that switch system may need to be looked into on the controls.

Aug 16, 2016 | 2003 Ford Explorer Sport XLT

2 Answers

Can't get power to foglights on my 2003 Explorer


Power is applied to the fog lamp switch which is a separately controlled part of the main light switch. When the fog lamp switch is turned on, power is applied to the fog lamp relay in the battery junction box which closes to turn on the fog lamps IF 20A FUSE 19 and 15A FUSE 44 in the BJB are OK. Setting the multifunction switch to HI closes the high beam relay in the BJB, removing power from the fog lamps and directing it through 20A FUSE 46 in the BJB to the high beam lamps. In other words, you can have fog lamps or high beam lamps but not both at the same time

the multifunction switch is set to HI, the high beam relay in the battery junction box closes

Oct 20, 2014 | 2003 Ford Explorer

2 Answers

No headlights or fog lights


I suspect it is the headlight switch

Mar 18, 2014 | 2004 Pontiac Grand Am

1 Answer

Integration relay


check the lamp itself to be sure it isnt burned out... check the main fuse and relays under the hood... check for bad wires throughout the lighting system (time consuming and tedius)

Feb 11, 2014 | Toyota Tundra Cars & Trucks

1 Answer

High beam indicator comes on with fog lights


Could your Mazda have daytime running lights? If you checked all fuses, did that include the three in the joint box?

There is an auto light-off control module that is central to all functions you describe. It is assumed that you would only turn on the fog lights with headlights on and set for high beam. If you set the headlight switch to LOW, the module closes the headlight relay to turn on the low beams. If you then turn the headlight switch to HIGH, the module turns on the high beams and allows you to turn on the FOG LIGHT switch, closing the fog light relay and turning on the fog lights. Since this sequence is not working, I suggest checking both high beam lamps as both could be burned out. Other possibilities are a defective headlight switch or the module

Oct 01, 2012 | 2005 Mazda 6

1 Answer

Fog lamps dont work i check fuses and relay the switch shows the fog lamps are on


If you have not replaced the headlamp with HID, the next thing, are the high beams on ?

If you turn the high beams on, the indicator lamp on the main headlamp switch should go out.

Next thing would be to check the fog lamp relay in the fuse panel ( passenger side kick panel by the fuel inertia switch ).

The fog lamp relay is a half size ISO relay, you should be able to swap with the trailer tow parking lamp relay ( R201 ), to test with.

The fuse you checked is the F17, the fog lamp fuse for Relay R202, correct ?

Nov 26, 2009 | 2006 Ford F-150

1 Answer

High beam not working


yes there is have you checkt the high beam ligts. there is one lamp tho the low beam ligts (50w) usaly and there is one lamp tho the high beam ligts usaly (100w)

Jun 08, 2009 | 1999 Daewoo Nubira

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