Question about 2002 Dodge Caravan

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02 dodge caravan headlights

One headlight works on high beam - one works on low beam. dimmer switch is good. is there a control module. has auto headlights

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  • powwow166 Jan 11, 2009

    one headlight works on high beam - one works on low beam. dimmer switch is good. is there a control module. has auto headlights

  • Nikia Gray-Hutto Mar 10, 2009

    I have started investigating how to fix as I also have this issue. Replaced the blinker High beam switch and now waiting for headlamp/foglight dash switch to see if this resolves it. I will report back.

  • Jerry Pledger
    Jerry Pledger May 01, 2009

    2002 Dodge Caravan headlamps: one works on dim the other works on high beam but not together. Also only one daytime running lamp.

  • Mike Butler
    Mike Butler May 11, 2010

    You've tried new bulbs, or at least one new one?

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  • Dodge Master
  • 412 Answers

SOUNDS LIKE INTEGRATED POWER MODULE(UNDERHOOD FUSEBLOCK)IS DEFECTIVE..ALSO CHECK FOR CORRODED TERMINALS IN CONNECTORS ON FUSEBLOCK..HAVE SEEN THIS BEFORE AND NEW FUSEBLOCK WAS NEEDED AND REPAIRED PROBLEM

Posted on May 31, 2009

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Posted on Jan 02, 2017

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2007 chev sub head lights wont turn on


Do you know anything about automotive electronics ? Electronic control modules .
Headlamp ON/OFF control is determined by the body control module (BCM) by a signal on the headlamp switch on input circuit when the headlamp switch is in the HEAD position. When the headlamp switch is in the AUTO position, the BCM determines headlamps ON/OFF by the voltage from the ambient light sensor.
If the headlight switch is left in the ON position, the inadvertent power control feature will turn OFF the headlights approximately 10 minutes after the ignition switch is turned to the OFF position. If the driver places the headlight switch in the ON position after the ignition switch has been turned OFF, or if the ignition switch is in the ACCY position, the headlights will remain ON until turned OFF or the battery runs dead.
The high beam indicator is illuminated when the instrument cluster receives a GMLAN serial data message from the BCM that the high beams are illuminated.
High Beams
The high beam headlamps receive voltage from the headlamp high relay located in the underhood fuse block. The BCM controls the relay on the headlamp high beam relay control circuit. High beam control is determined by a signal on the headlamp dimmer switch signal circuit from the multifunction switch. When the headlamp dimmer switch signal circuit is grounded, the BCM grounds the headlamp high beam relay control circuit, illuminating the high beam headlamps. The right and left high beam circuits are independent and are fused independently in the underhood fuse block.
Low Beams - Standard
The low beam headlamps receive voltage from the headlamp low beam relay located in the underhood fuse block. The BCM controls the relay on the headlamp low beam relay control circuit. Low beam control is determined by a signal on the headlamp dimmer switch signal circuit from the multifunction switch. When the headlamp dimmer switch signal circuit is open, the BCM grounds the headlamp low beam relay control circuit, illuminating the low beam headlamps. The right and left low beam circuits are independent are fused independently in the underhood fuse block.

Hooking up a factory scan tool an checking DTC'S - diagnostic trouble codes would be the very first step in trouble shooting this problem .
DTC B257A 00: Headlamp Switch Input Signal Mismatch
DTC 2575 00: Headlamp Control Circuit

Jun 30, 2017 | Cars & Trucks

2 Answers

The high beams on my Honda 02 Odyssey ( Canada series ) only works on occasions. The bulbs and contacts to the lights are ok, the two relays under the hood are working,fuses look good in all fuse boxes....


Could be a contact, in the chain, not 100% in working order. It could lose contact by temperature, moisture or any other natural cause. Even contacts in a relay can be faulty and you should not rule out a relay what is clicking. Only measuring the resistance in the chain or the drop of voltage over a contact can bring you to the real cause.

Jan 31, 2015 | 2002 Honda Odyssey

1 Answer

I have a 2002 dodge grand caravan the headlights. One works on dim and the other works on bright. I've replaced both headlights and it did not fix it. What do I do next?


Sounds like a wiring problem. You may need a repair book to track it all down. Could be a ground connection too.
The headlight switch sends power to the dimmer, then thru the body control module, then the high and low beam relays, then the four fuses, then the actual headlights. So you should have power on the low or high beam fuses depending on which way the dimmer switch is positioned.

Feb 15, 2014 | 2002 Dodge Grand Caravan

1 Answer

1996 dodge Ram 1500 4x4 headlights dont work.All other lights work. Headlight lamps are all good. Could it be the switch or the multifunction switch? High beam works when I pull on the directional le


The headlight switch gets power for the headlights from a 50amp fuse.
The fuse powers the headlight switch then the dimmer switch breaks for high and low beams. So if the high beams work, the problem may be with the dimmer switch.
The dimmer switch is made into the turn signal switch on the column. You would need to check the low and high beam circuits at the switch for power.

Jan 14, 2013 | Dodge Pickup Cars & Trucks

1 Answer

2001 grand caravan low beam light not working. i chang bulb already i check fuse already.


Hi Every single time I have had a failure of low beam in a headlight without failure of high beam, it has been because the lamp bulb or halogen lamp module has reached the end of its serviceable life, not because of any wiring problems. Low beam burns out first because it is on the most. If low beam is lost simultaneously in both headlights, I would check fuse first, then the headlight switch. If low beam is lost on one side only, it is almost always going to be due to the bulb or lamp module needing to be replaced. In that case, replace them in both headlights because the other one will be going kaput in short order, as well.Also if you already replaced the fuse and bulb check the headlight dimmer control switch.
Thanks for using Fixya.

Mar 14, 2011 | 2001 Dodge Grand Caravan

1 Answer

I have a 2005 dodge caravan. the headlights have


On the van you have a high beam fuse and relay. On the low beam you also have a fuse and relay. Check the fuse/relay panel for a blown fuse controlling the low beam lights. If you do not find a blown fuse have some one to turn the key on and turn on the high beam lights> During this time locate the low beam headlight relay and place your finger on top of relay, have the other person to switch from high beam to low beam lights. You should feel a click in the relay when they make the switch from high to low beam. If not replace the relay and the problem should go away. Hope this will help you.

May 28, 2010 | 2005 Dodge Caravan

1 Answer

1995 dodge caravan low beam headlights don't work but high beams do,bulbs are ok put new dimmer switch in they still don't work


look into the actual headlight switch and the wiring and the turn signal switch nand wiring

Apr 29, 2010 | 1995 Dodge Caravan

1 Answer

95 dodge caravan low beam headlights don't work


IF BULBS ARE OKAY.MORE LIKELY DIMMER SWITCH BAD.

Mar 07, 2010 | 1995 Dodge Caravan

1 Answer

02 Dodge Caravan one headlight will only work at


i have seen this problem before..sounds like underhood fuseblock is bad..flip unit over and check connections..dealer part..hard to get at a wrecker's here..may not be where your located..

Apr 09, 2009 | 2002 Dodge Caravan

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