Question about 1999 GMC Jimmy

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99 GMC Jimmy DRL, headlights, and High beams not working amber lights work.

Checked all fuses, replaced relay, resurfaced ground and bolt behind passenger light underneath batter tray. Have taken relay out and jumped pin 30 to 86 and know the dimmer switch is good because I can get regular head lights on or off from the switch. When I click the high beams on multi-function switch, high beams will not stay on and does no illuminate on the dash. When I hold the high beams on, the passenger headlamps all go off but the drivers side high beams works (have tested pass. bulb, its good). I am looking for help tracking the problem(s) down. I have 2 older multi-function switches that i had replaced before along with dimmer switch. Also had taken the Jimmy into have this problem fixed two years ago. As far as I was told, a short that also shorted my other multi-function switches (but the high beams did work on those during the 1st time I had a problem). Also pulled the fuse box under the hood to look for signs of a short or burnt wires on the underside of the fuse box. I hate to spend another $150 on a multi-function switch on the column if its just going to get fried. Help!!!

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  • GMC Master
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Headlights control by headlamp driver module relay to the BCM and the light sensor on dash next to the winshield defrost vents.headlights also control by high beam relay.

Posted on Nov 18, 2013

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 12 Answers

SOURCE: Courtesy lights blow 20 AMP fuse #3

check the wiring under the carpet and to turn off the day time running lights just pull the drl fuse

Posted on Dec 19, 2008

edwardjwoods
  • 372 Answers

SOURCE: headlamps for a 2006 gmc sierra aren' t working

i would try replacing headlight switch....

Posted on Aug 18, 2008

  • 22 Answers

SOURCE: 99 gmc denali dash light, parking lights, tail

You have a short to ground somewhere in the drl-fog lamp circuit. Check for obvious wiring connector or wiring to drl & fog lamps. check wiring for pinched or broken wires coming from sockets. If you don't find problem, you can trace wiring from lamps to main harnesses and hopefully find source of short.
hope this helps.

Posted on Mar 02, 2010

  • 41 Answers

SOURCE: i have a 99 gmc

check the multi function switch.where the wires go into the switch may be melted.the low beam feed wire is probably melted off.try tilting the steering wheel.you may find they come on at a curtain spot.this is a common problem.happened on my 2000 chevy truck.

Posted on Nov 25, 2010

  • 21 Answers

SOURCE: My 2003 GMC Yukon XL Denali low beam headlights do

The problem is likely your multi purpose signal light switch. If you take the lever and move it from hi to low beam will the low beams come on? It is common for this multi purpose (real expensive ) switch to fail after a period of time! The steering wheel may have to be removed, to change it. The air bags will also need to be disabled so as not to active them while removing the switch.

Posted on Mar 19, 2011

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1 Answer

97 gmc jimmy,need help locating the headlight relay under the hood? Fuses good, everything except headlights?


Excluding drl and fog lamps, there is no relay. The voltage to headlamp switch, hot all the time, I didn't check for fusible links? The voltage from headlamp switch goes to dimmer switch then to headlamps, at the headlamps check voltage and ground. My info showed sealed beam or quad lamps, I didn't look at both.
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Oct 26, 2016 | 1997 GMC Jimmy

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Daytime running lights not working


Assuming this is an LX, check 7.5A fuses 9 and 5 in the driver's underdash fuse/relay box. Fuse 9 applies power to the DRL indicator light in the gauge assembly which connects to the DRL control unit. Fuse 5 supplies power to the DRL control unit when the ignition is on. Also check 100A fuse 41 in the underhood fuse/relay box which supplies power to the headlight relays. Setting the headlight switch to HEAD causes the headlight relays to close and apply power through 20A fuses 45 and 43 in the underhood fuse/relay box to the low beams. Low beam power also passes through the DRL diode to close the high beam cut relay and prevent high beam use during DRL operation.

Sep 23, 2012 | 2002 Honda Accord

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Daytime Running Lights Inoperative 2002 Toyota Camry


[Information] For a 2002 Toyota Camry, the Daytime Running Lights (DRL) operate utilizing the High Beams (inner Lamps closer to the center of the vehicle front) at a reduced power.

[The troubleshooting process:] Review the Owner's Manual and ensure the test configuration matches the following criteria:
1. According to the 2002 Toyota Camry Owner's Manual (Check your Owners Manual):
"The DRL system will make your headlights come on at a reduced brightness when:
The light switch s in the "DRL" position.
The ignition is on with the engine running.
The headlight switch is off.
The parking brake is released."


2. Set the Test Conditions according to Step 1 above.

3. Check the headlight bulbs to ensure they are not burned out. If one burns out, there is a fair chance that the other would have burned out at the same time. Replace as necessary. In this case, if the high beams operate, the DRLs should also operate.
4. Test the system, ensuring the step 1 conditions are set. (Engine running, Multi-function Switch on Turn Signals in "DRL" position, headlight switch off (repeating what the manual says -- it should be obvious that in the "DRL" position, the headlight switch should be off / do not have the switch positioned to "High Beam"), and the Parking Brake "off").
5. If DRL lights do not work, check the engine compartment Fuse and Relay Box. there is a 5 Amp DRL fuse -- replace it with the spare. Test (step 4).
6. If it does not work, swap around or replace relays -- there are three (3). Any one of them could be bad (stuck or burned out). Test (step 4).
7. Other less likely possible issues could be that the Multi-function Switch is broken or a connection / wire is broken. [Beyond the scope of this process.]


My problem was that the test configuration did not have the engine running and parking brake off - Step 1. Problem solved with much thought, repetitive tests on the vehicle and going back to the basics -- what does the Owner's Manual say and where are the applicable fuses and relays located?

Dec 30, 2011 | 2002 Toyota Camry

2 Answers

My r/f high beam is out, so I replaced the bulb but I still have no high beam. Also my daytime running lights stopped working, could they possibly be related?


Yes your daytime running light just uses the headlight bulb on a lower voltage so if the headlight is not working the drl will not work as well, they are dirrectly related,,check the head light fuse,and check to make sure the bulb is good,,

Oct 06, 2009 | 2000 Saturn SL

2 Answers

Repair a stuck DRL relay on a 1997 Pontiac Sunfire? At least I think it's stuck. The DRL don't work but if I turn my lights on the low beams work and when I switch to high beams the passenger side...


Passenger side high beam element burned out. DRL problem might be the emergency brake suppose to turn off when engaged. Slightly depressed will cause DRL not to work.

Sep 27, 2009 | 1997 Pontiac Sunfire

2 Answers

Drl and high beams dont work


Check the bulbs -- the daytime running lamps use the highbeams on the resistor -- There are two filliments per bulb one high; one low. If both high beam filliments are out nothing will work....replace bulbs if this is the case.

Aug 02, 2009 | 1999 Pontiac Sunfire

2 Answers

I have a 1998 cavilier i have no low beams,fuses checked good


 I’m inclined to believe you have a headlight switch problem and here’s why. There are 2 fuses one for each of the headlights on the vehicle. For the daytime running lights (DRL) to operate the fuse and wiring to the right head light has to be good, because it supplies the power for both headlights in the DRL mode. The fuse and wiring for the left headlight has to be good because the DRL relay needs power from that fuse to operate. The DRL relay in turn provides a path through the left headlight and wiring to ground. When you pull back on the dimmer switch, you are activating the flash to pass circuit of the headlight switch assembly. Because the flash to pass mode works you then know that the high beam wiring and headlight bulbs are in good condition. This also tells you that the ground circuit for the headlight switch is good. In many newer vehicles, the headlight switch doesn't provide power to the lights. The headlight switch has now become the path to ground to complete the circuit. The headlight switch and the high/low beam dimmer control are one assembly so when you replace one you get the other free. Such a deal! My coffee bet is on the headlight switch assembly.

May 12, 2009 | 1998 Chevrolet Cavalier

1 Answer

Drl not working nor are low beams high beams work properly


Ok look under the bagtterry tray, there is a black box bolted to the body, it is the headlight ground and has a really bad tendency to corode due to the design.

Feb 01, 2009 | 2001 Pontiac Sunfire

1 Answer

Both Headlights Work On Lowbeam But Not On Highbeam.


First identify if your day running lights (DRL) are working. The DRL and high beams will work on the same relay. If your DRL are working, but not your high beams, you may need to replace your high beam relay which is found in the fuse panel under the hood of the engine at the right back corner; near the firewall, and passenger tire strut mount. If there is also a problem with your DRL with the high beams, its likely the DRL relay which can be found tucked under the dash.

There's usually a cover that says "relays", "fuses", etc. Lift the cover and look underneath, it should label the relays. If not, consult a manual or repair book. Try swapping similar relays from know working accessories if you don't have a new one handy.

Jan 15, 2009 | 1996 Honda Accord

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