Question about 2000 Isuzu Rodeo

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Hi all fuses good but can not get low beam to go, hi beam will go and park lights also work.

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  • Master
  • 395 Answers

Have you checked the headlight globes? The Low Beam filaments usually burn out well before the High beam ones because the Low beam is used most of the time. Access to the globes is via the rear of the light assemblies in the engine bay.

Posted on Oct 07, 2010

  • debbra_missy Oct 07, 2010

    first thing i looked at

  • Mike Roberts Oct 07, 2010

    The only thing left that it could be is the relay. Try swapping the High and Low beam Relays to see if that works. They will be located on a block in the engine bay.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Headlights

I READ ONLINE THAT THERE WAS A RECALL ON THIS YEAR AND MAKE, CHECK WITH TOYOTA WEB SITES TO RECTIFY YOUR PROBLEM

Posted on Jul 25, 2008

  • 132 Answers

SOURCE: Low beam headlight is out, doesn't look like a fuse

Check the Headlight Switch. If your headlights come on automatically check the headlight sensor and its associated relay.

Posted on Mar 26, 2009

Molson02536
  • 3854 Answers

SOURCE: 2004 chevy trailblazer low beams not working fuses good bulbs new

Check the relay or your head light switch has gone bad. 

Posted on Apr 06, 2009

  • 7353 Answers

SOURCE: low beams don't work - both out at the same time.

DID YOU CHECK THE BULBS?

Posted on Nov 04, 2009

Testimonial: "spot on."

cool78259
  • 228 Answers

SOURCE: parking lights turn on, headlights

If you ran a separate wire to the lights, it's not a ground problem. looks like you may have a bad switch.

or bad wire. you can use an ohm meter to check the wire from the switch to the light. a test light is

easier. test for voltage at both ends of the fuse, at the switch and the wire before the light. check the

connection at the light, sometimes the connections get corroded and voltage will not pass thru. good luck!

Posted on Feb 13, 2011

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Why wont the headights or running lights work on my 2002 Buick LaSabre?


There are several reasons why your headlamps an running lights don't work , the headlamp switch is a good one ,plus relays an the DIM - dash integrated module an associated wiring ! Here is how the headlamps work , right out of Buick factory service info !
The dash integration module (DIM) provides battery positive voltage to the signal circuits of the headlamp switch. The signal circuits include the headlamp switch headlamps on signal, the flash to pass switch signal and the high beam input. With the headlamp switch in the ON position, a ground path is available for the headlamp switch headlamps on signal circuit of the DIM through the headlamp switch. The DIM provides ground to either the headlamps high beam relay control circuit or the headlamps low beam relay control circuit of the low beam circuit. The position of the headlamp dimmer switch determines which relay control circuit has ground. The DIM supplies battery positive voltage to the relay control circuits, if the headlamps are necessary. The fuse block - underhood supplies battery positive voltage to both relay switch circuits. When the low beam relay control circuit is energized, current flow is to both low beam fuses and to the low beam headlamps. The headlamps have ground at G103 and at G401. When the headlamp high beam relay control circuit is energized, current flow is to both high beam fuses and to the high beam headlamps. The high beam circuit is divided into a left and right side circuit. The current flow of the left high beam is from the fuse to the left high beam lamp. From the lamp, the current flows to the normally-closed contact of the DRL relay to G103. The current flow of the right high beam is from the fuse to the right high beam lamp. From the lamp, the current flow is to ground at G401. When the headlamp dimmer switch lever is pulled toward the driver, the flash-to-pass switch closes. This grounds the DIM flash to pass switch signal circuit. In response to this input, the DIM energizes the HDLP HI BM relay. Both high beams remain on until the driver releases the switch handle. If the low beam headlamps were on during a flash to pass operation, the low beams remain on. The headlights may be switched to high beam with the opposite movement of the headlamp dimmer switch lever.
By running lights , do you mean park lamps or day time running lamps ?
Park, Tail, License and Marker Lamps
The park lamps, including the license lamps, are turned on when the headlamp switch is placed in the PARK or ON position or anytime the headlights are requested. The fuse block - rear supplies battery positive voltage to the switch contacts of the Park LP relay. When the headlamp switch is in PARK or in ON, the park lamp switch on signal circuit of the DIM has a ground path. The DIM provides battery positive voltage to the control circuit of the Park LP relay. When the park lamps and/or the tail lamps are ON, the DIM energizes the park lamp relay control circuit. This closes the switch contacts. Current flows from the Park LP relay to the LH PARK LP and the RH PARK LP fuses. From the fuse, the current flows to the park lamps. The left park lamps are grounded at G103, G401 and G402. The right park lamps and the right tail lamps are grounded at G103 and G401. The DIMR fuse supplies battery positive voltage to the license lamps and to the DIM instrument panel lamp fuse supply voltage - 1 circuit, for interior lamps dimming. The license lamps are grounded at G401.
The best advice I can give is that you take this to a ASE certified professional repair facility unless your a qualified automotive electric repair person !
Diagnostic Starting Point - Lighting Systems
Begin the system diagnosis with the Diagnostic System Check - Lighting Systems . The Diagnostic System Check will provide the following information:
?€¢
The identification of the control modules which command the system


?€¢
The ability of the control modules to communicate through the serial data circuit


?€¢
The identification of any stored diagnostic trouble codes (DTCs) and their status

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.

The

Mar 15, 2015 | 2002 Buick LeSabre

1 Answer

No power to right side (PS) headlight low beam plug socket, new bulb, fuse is good. High beam works, blinker works, park light works. just no low beam and doesn't register any voltage on volt meter.


check low beam fuse when switched on if it has voltage registering across the fuse ,if there is voltage across the low beam RHS fuse then it is possibly a pinched wire from the headlight running back towards inside of the car

Jan 30, 2014 | Cars & Trucks

1 Answer

Low beam not working on 97 Mitsubishi Lancer. Park ok, hi beam ok. Lamps test ok.


If Dual beam bulbs, low beam on light may be blown. I just had the same problem on my '91 Camaro. Could also be a simple fuse replacement, find correct fuse, , replace, and recheck.

Sep 26, 2013 | Mitsubishi Lancer Cars & Trucks

1 Answer

Passenger headlights only do not operate.


check the bulbs first and also the fuses theres a fuse for each side and for low and high beams, start there, good luck.

Feb 19, 2010 | 2002 Mitsubishi Eclipse Spyder

1 Answer

No low beams bulbs are ok fuses look good


There may be a relay that operates the low beam lights, check the owners manual to see if there is a relay, you should be able to hear it go "click" if there is one.

Dec 26, 2009 | 2006 Hyundai Sonata

2 Answers

Low beams only quit high beams work, park lights


yes there is but it is probably da bulbs

Oct 06, 2009 | 1999 Oldsmobile Alero

1 Answer

2003 Envoy low beam headlights won't work


Both low beam head lights are burnt out? blown fuse.

Sep 09, 2009 | 2003 GMC Envoy

1 Answer

97 chev 4x4


Check the dimmer switch.

Nov 04, 2008 | 1997 Chevrolet K1500

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