Question about 2004 Chevrolet Impala

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Headlight wiring diagram for 2004 Chevy Impala

I need a headlight wiring diagram for a 2004 impala.

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  • Anonymous Mar 12, 2014

    2013 impala wiring diagram at factory amp

  • Anonymous Mar 12, 2014

    2013 impala wiring diagram at factory amp

  • Anonymous Mar 20, 2014

    wiring diagrams

  • Anonymous Mar 27, 2014

    trying to find wiring diagram

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  • Master
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I would go to Alldata.com on line for your vehckle to get the wiring diagrams.

Posted on Jul 18, 2009

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1 Answer

I own a 2004 chevy impala my headlights jus stopped working but no blown fuse or headlight.


Fuses are good, replace the turnsignal switch. All the exterior lights run threw it.

Feb 27, 2015 | 2004 Chevrolet Impala

1 Answer

Hello, I'm having an issue with my headlight. For almost a year now I do not have a dim (low) headlight on my passenger side of my 2002 Chevy Impala. My Impala has over 140,000 miles and a 3.4 Engine


If the relay were the problem both sides wouldn't work . Do you know how to do automotive electrical testing ? How to read a wiring diagram ? You can view wiring diagrams here http://www.bbbind.com/free_tsb.html Enter your vehicle info. year , make , model , engine size . Then under system click on lighting , then subsystem click headlamps . Click on the search button , then on the blue links one at a time . At the top of the first diagram you will see the fuse's for low an high beams . The fuse's send B+ voltage directly to the high an low beams , from there B+ voltage goes on to the dimmer switch shown on the next diagram .Low beam headlamps from the dimmer swich goes through the headlamp relay when energized by the BCM . When the relay is energized that compleats the circuit to ground at G- 201 . So you see if one side is working it can't be the relay . Doing electrical testing , voltage drop testing is the way to find the problem .
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Mar 13, 2017 | 2002 Chevrolet Impala

1 Answer

My 2004 chev impala headlight won't turn on and


If you made sure your battery connections are tight then you may need trace you hot wire for a bad connection around the fusible links that run from battery.

Aug 23, 2013 | Cars & Trucks

1 Answer

My 2004 Chevy Impala right head light won't come


There are right and left fuses for the headlights. The dimmer switch and headlight switch provide the ground circuit.
Do you have power at the fuse ?

Feb 15, 2013 | Cars & Trucks

1 Answer

How do i access the headlamp relay switch 2004 chevy impala


The switches used in the headlight relay operate via one circuit to control the parking lights, another current for driving lights and the third operates the high beams. One or multiple switches in the set can fail due to corrosion, excess current or exposure to damp conditions, resulting in total loss of headlight function or the inability to switch between beam brightness. The operator should inspect the switches for signs of damage or wear and replace them as needed.

Read more: Chinasinoy Electron

Aug 02, 2012 | 2004 Chevrolet Impala

1 Answer

Need wiring diagram for headligt on 2003 chevy impala with 3.8 cu engine


Sounds like a short or the relay is going bad to the headlamps. You may be able to google for the diagram but probably will need to get a repair manual from the nearby auto parts store for appx $25.00. I would start by checking continuity with the battery disconnected on that side from the positive wire to a ground. Also start with checking the relay, they are usually generic and you should be able to swap two as long as the numbers match and see if that fixes the issue.

Jun 08, 2012 | 2003 Chevrolet Impala

2 Answers

Headlights go off intermittenly on my 2002 chevy impala. what could be the cause?


if you have auto lights it could be the photo eye or its the headlight switch

May 04, 2010 | 2002 Chevrolet Impala

1 Answer

I want to remove my headlights on a 2004 Chevy Impala to replace them with after market ones. I am not sure what the procedure is to do that. Can you help me out? Thanks


There are 2 retainers on each headlight. Lift those up and out and all the lights come out by twist and turn. Place these in the new headlight the same way twist and turn and put headlight back into the headlight mount panel and slide clips through holes on headlight and push down.

Oct 22, 2009 | 2004 Chevrolet Impala

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