Question about 2001 Toyota Tundra

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2001 tundra has a headlight (switch) problem. Wiggle switch and parks go out. Headlights dim, driving lights fail to cime on....

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6ya6ya
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Posted on Jan 02, 2017

  • 77 Answers

SOURCE: Head Lights go dim, instrument panel goes dim when I turn on my Headlights

Does it go completely black or just dim? Most displays dim when you turn the lights on to make the display darker so its not too bright. GPS and other displays do this. Do you have any problems with any other of the car's electronics?

Posted on Oct 17, 2008

mnabi01
  • 94 Answers

SOURCE: 2001 s10 headlights will not come on all the time

are you sure the bulbs are o.k.? if they dont work on both high and low you have ground wiring problem. ground the black wire at the plug with lights on.

Posted on Jan 29, 2009

centralvalle
  • 386 Answers

SOURCE: battery and brake lights flicker and headlights dim

check for aloose alternator belt, these are famous for the alternator mounting bolts breaking off and causing the alternator to become loose allowing the belt tension to back off and be loose enough to slip on high rpm causing your condition... at least check alt and battery voltage, especially alternator charging output, go to adiscount autoparts store like autozone or kragens and have then preform a free alt check... on car... please rate my help thanks...

Posted on Aug 06, 2009

97F350diesel
  • 1326 Answers

SOURCE: Headlights turn on by themselves when vehicle is parked.

Do you have auto lights when it gets dark out? When they come on is it in a parking garage or home garage where its dark If so chances are your switch/relay unit is bad. (or do they come on in daylight too)?

Posted on Dec 25, 2009

  • 1244 Answers

SOURCE: 99 chevy 1500 with DRL feature; headlights won't

change the headlight switch!! itself its broken inside the unner contacts

Posted on Jan 17, 2010

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2 Answers

1997s10 pick up truck no headlights i have all other lights


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Headlight Switch

ABCDEFGHIJKLMNOPQRSTUVWXYZ The headlight switch controls most of the vehicle's lighting systems. Many complaints concerning the lighting systems can be the result of a faulty headlight switch. For example, dim or no instrument panel lights, dim or no headlights, dim or no parking lights, and improperly operating dome lights can all be caused by the headlight switch.
Dash-Mounted Switches
f36-12.jpg A headlight switch. You'll need to remove the switch to test it. With the switch removed it can be tested for continuity and the connector plug will serve as a test point for the lighting circuits. First test at the connector.
In this procedure the terminals are identified as follows:
  • Terminal B = battery
  • Terminal A = fuse
  • Terminal H = headlights
  • Terminal R = rear park and side marker lights
  • Terminal I = instrument panel lights
  • Terminal D1 = dome feed light
  • Terminal D2 = dome light
Consult the service manual for terminal identification for the vehicle you are working on. If this is not listed in a separate chart, you should be able to identify the circuits from the wiring diagram.
  • Connect the 12-volt test light across terminal B and ground. The test light should light. If not, there is an open in the circuit back to the battery.
f_aee_cc14.19.jpg Testing for battery voltage to the connector. Reprinted with permission of Ford Motor Company.
  • Connect the test light across terminal A and ground. The test light should come on. If not, repair the circuit back to the fuse panel.
  • Connect a jumper wire between terminals B and H. The headlights should come on. If the headlights fail to turn on, trace the H circuit to the headlights. Also check the ground circuit side from the headlights.
  • Connect a jumper wire between terminals A and R. The rear lamps should illuminate. If not, trace the circuit to the rear lights. Also check the ground return path.
  • Connect a jumper wire between terminals A and I. The instrument panel lights should come on. If not, trace the circuit to the panel lights.
The chart below indicates the test results that should be obtained when testing the headlight switch for continuity. use an ohmmeter or a self-powered test light to test the switch.
Steering Column-Mounted Switches
On some vehicles it is possible to test the steering column-mounted switch without removing it. The test is conducted at the connector at the base of the column. However, on some vehicles it is necessary to remove the column cover and/or steering wheel to gain access.

Mar 14, 2013 | Cars & Trucks

1 Answer

Lights will not turn on


HEADLIGHTS NOT WORKING


It can be faulty headlight switch or issue with its wiring. Or its faulty head light fuse.


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To troubleshoot the issue i suggest you few help links with appropriate solution. So you can follow the test and confirm what exact problem is there in your case of headlights not working:-----

Click the link below: -----


All headlights not working?

http://repairhelpcenter.blogspot.com/2012/01/all-headlights-not-working.html

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Working of Headlight switch?
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Both headlight bulbs blow together?

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Car headlight bulbs don't last long?

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2007 Dodge Caliber: Low Beam Headlight Not working

http://technoanswers.blogspot.in/2012/06/2007-dodge-caliber-low-beam-headlight.html

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2003 Toyota Camry: Headlights Work Intermittently?

http://technoanswers.blogspot.in/2012/04/2003-toyota-camry-headlights-work.html

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Chevy Tahoe: Low Beam Lamps are not working?

http://technoanswers.blogspot.in/2012/04/chevy-tahoe-low-beam-lamps-are-not.html

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2001 Chevrolet Tahoe: Headlights not coming ON?

http://technoanswers.blogspot.in/2012/04/2001-chevrolet-tahoe-headlights-not.html

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2004 Dodge Ram: High Beam Light is DIM?

http://technoanswers.blogspot.in/2012/04/2004-dodge-ram-high-beam-light-is-dim.html

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2001 Chevrolet Tahoe: Both Low Beam Lamps Not Working?

http://technoanswers.blogspot.in/2012/04/2001-chevrolet-tahoe-both-low-beam.html

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Low beam headlights Modification?

http://schematicsdiagram.blogspot.in/2012/04/low-beam-headlights-modification.html

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How to Replace a Headlight

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-headlight.html

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How to Replace a Headlight Bulb


http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-headlight-bulb.html

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How to Replace a Headlight Switch

http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-headlight-switch.html

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How to Replace a Headlight Assembly

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-headlight-assembly.html


How to Replace a Park Light Assembly

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-park-light-assembly.html

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Low beam headlights Modification?

http://schematicsdiagram.blogspot.in/2012/04/low-beam-headlights-modification.html

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Headlight Assembly Removal On Honda Accord

http://technoanswers.blogspot.in/2012/06/headlight-assembly-removal-on-honda.html

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Honda Headlight Assembly Removal
http://schematicsdiagram.blogspot.in/2012/06/honda-headlight-assembly-removal.html

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How to Replace a Headlight Door

http://schematicsdiagram.blogspot.com/2011/08/how-to-replace-headlight-door.html

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How to replace HID headlight bulbs for lexus 400h?

http://schematicsdiagram.blogspot.com/2012/01/how-to-replace-hid-headlight-bulbs-for.html

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These will help.

Thanks.

Nov 28, 2012 | 1986 GMC K1500

1 Answer

My drl switch is bad iv'e concluded... but now i have no headlights high or low. is this a blown fuse from lack of drl switch replacement or what. i still have my parking lights but no headlights


Hi,
Likely the Headlights work through the DRL switch, too. Replace the switch (get a used one from a used parts/salvage/wrecking yard) or from a dealer...might call an auto parts store, too.

GL,
Td

Oct 18, 2012 | 2001 Chevrolet Prizm

1 Answer

My 06 Honda ridgeline drivers side headlights is dim while ps light is fine,also ds parking lights are dim w headlights on equal brightness with parking lights only,switched head lamp bulbs problem is ds...


One of the frame grounds on the headlight wiring harness is loosing connection with the body. Look for black wires attached to the body under the hook. One of them is loosing connection.

May 27, 2012 | 2006 Honda Ridgeline

1 Answer

Headlights not coming on


I'd start with the fuse.Have you tried to dim them yet? I think this is the model where the lights turn on from the turnsignal switch and dim from the same switch, if so this multifunction switch gives problems.

Feb 18, 2010 | 1995 Pontiac Grand Prix

1 Answer

After turning ignition, only parking lights work. low beam headlights were replaced recently. parking lights wont even turn off. headlights


I had an S-70 with the same problem what happens is the headlight switch tabs that hol it together broke and the switch was slightly separated and connection was not there for the headlights and also check the high beam see if headlights come on i dont think it is a relay or fuse??? proballally the headlight switch and easy to replace you even can use one from an 850 model

May 17, 2009 | 2001 Volvo S80

1 Answer

2001 honda civic dim headlights will not come on just brightlight


Low beams are separate bulbs and could possibly both be burnt out

Apr 04, 2009 | 2001 Honda Civic

1 Answer

Parking lights stay on when the key is turned off


there are more wires that you cannot see that are melted that is causing the problem. trace all of your wires, starting with the license plate light, all the way to the headlights

Feb 16, 2009 | 2001 Ford Focus

1 Answer

Headlights work but parking lights dont..


if u have change and check the bulbs and fuses. great. fuses do go lose in a cherokee . move each fuse by hand while the lights are on or the switch is in the on position. if you find the problem this way. just take the fuse out and slightly twist the prong of the fuse and replace it back and ditto. make your daughter say " u d grate dad"

Feb 07, 2009 | 1996 Jeep Cherokee Sport

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