Question about 2002 Jeep Grand Cherokee

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2002 headlight relay location? With lights in the auto position and the vehicle shut off and locked, the lights began flashing intermittently on and off. I'm assuming that this is a bad auto headlight relay, but am having difficulty finding it's location. I already have a replacement.

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  • Jeep Master
  • 15,575 Answers

The lights began flashing intermittently on and off ???? . Wouldn't be a relay problem , a stuck relay the light's would be on all the time , wouldn't be able to shut them off . I would think a control module or secruity system . The BCM - body control module controls the lights . The Headlamp switch is a input to the BCM , the BCM does energize relays to turn on the lights . More then likely the automatic headlamp light sensor which is an input to the BCM could be the problem . Taking the vehicle to a qualified repair shop an having the BCM checked for DTC'S - diagnostic trouble codes is your best bet , Don't take it to autozone , advance etc... as they can not access these codes .

Posted on Feb 21, 2018

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6ya staff

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Posted on Jan 02, 2017

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Anonymous

  • 35 Answers

SOURCE: 1997 Jeep Limited-Sometimes all the lights start flashing off/on.

Try unhooking the daylight switch. I had the same problem with a thunderbird. I unhooked the switch, it kept the battery charged and I installed a new switch ... no more problem. Also check and see if one of your headlights are out or very dim. My 02 cavalier did the same thing because of a bad headlight. These are just some places to look at .... good luck.

Posted on Jan 03, 2009

Richard Scordino

  • 6982 Answers

SOURCE: 1998 Grand Cherokee blower not working

Check blower fuse, relay and power at blower motor harness terminal. Check for proper grounding at dashboard and body as well. Yo
good lucku can run a hot wire to the blower motor and touch it to the connector spade to check if blower itself is OK. There are other components in the system, but this is a good start! Don't forget...fuses blow because there is a problem elsewhere. If you replace one and it blows again, there is something else wrong!

Posted on Jan 15, 2009

AzVip

  • 114 Answers

SOURCE: Lights quit flashing when Key Remote Locks or Unlocks car

The body controller for some reason has lost it's setting most likely. The dealer can reset with their "Star Scan" diagnostic tool. Many settings such as flash on lock or horn sound on lock can be turned on or off.

Posted on Mar 22, 2009

oldtimer11

  • 3 Answers

SOURCE: 2002 Jeep Wrangler intermittent total electrical system failure

sounds like a battery or ground connection problem , disconnect and clean the inside of the battery cables and the posts,tighter securely . If that doesn't do it remove the other end of the negative cable and clean the cable end and the metal that it bolts to.

Posted on Apr 08, 2009

Anonymous

  • 1 Answer

SOURCE: headlights do not come on once the bike is started

I had the same problem a year ago. Turned out to be a little more complecated after time. It started with the relays then I started keeping track of voltage. This is after the fan and lights were working intermitently. It turned out to be a faulty voltage rectafier. Some guys were close on other fixes I still don't trust my fan sensor. I think i have a bad thermostat it lets the bike run too hot but the fan sometimes lets me down. Put the by-pass switch for energency. O by the way check the Rectefier connections at back of the bike may have oily substance some say it is oil that travels up the wires I don't know that but mine was nasty I bought a new rectefier and cut the wires their direct now never had problem with relays so far. I know its weird the bike still cranks but im just saying thats what i went thru for months

Posted on Jul 27, 2009

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Keep blowing tail light fuse 45 on my 2002 Pontiac Grand Am?


There is an issue, you have a dead short in the circuit, no quick fix for this. You must first get a wiring diagram of the entire circuit and then follow it until you locate the shorted wire or component.

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2003 Chev Malibu. Radio inop with key in on position, auto systems not working, I.e. daytime running lamps, auto lock and drivers unlock, fuel and temp gauges not working.


Have you had vehicle check for DTC'S diagnostic trouble codes . Check fuse's an relays , find wiring diagrams to see what controls these systems ?
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An there is one on the other end of the instrument panel ,driver side .
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Daytime Running Lamps (DRL)
The ambient light sensor is a light sensitive transistor that varies its voltage signal to the body control module (BCM) in response to changes to the outside (ambient) light level. When the BCM receives this signal it will either turn on the daytime running lights (DRL) or the headlights. Any function or condition that turns on the headlights will cancel the daytime running lamps operation. With the headlight switch in the OFF position, the headlights will either be turned ON or OFF, after an approximate 30 second delay depending on whether daylight or low light conditions are sensed. The HTR A/C IGN fuse in the underhood junction block supplies ignition positive voltage to the daytime running lamp (DRL) relay coil circuit. The DRL relay switch contacts are connected to the low beam circuit. When the headlamp switch is placed in the OFF position, the BCM will either turn on or off the daytime running lamps, depending on whether daylight or low light conditions are sensed. The BCM energizes the DRL relay, closing the switch contacts and grounding the low beam circuit. Ground is provided at G101. The DRL illuminate the low beam headlights at a reduced intensity. The DRL will operate when the ignition switch is in the ON position, the gear selector is not in the PARK position and the parking brake is released. When these conditions have been met and the ambient light sensor indicates daytime conditions, the DRL will illuminate.
DRL operation in Manual Transmission equipped vehicles will occur when the ignition switch is in the ON position, and the parking brake is released. - check fuse's an relay first.
Door Lock System Components
The power door lock system consists of the following components:
?€¢
Driver door lock switch


?€¢
Front Passenger door lock switch


?€¢
Body Control Module (BCM)


?€¢
Relays: Driver Door Unlock--if equipped, Door Unlock, and Door Lock


?€¢
Door Lock fuse 15A


May 25, 2016 | Cars & Trucks

2 Answers

Why are the headlights staying on when ignition is off


Under your hood is a plastic box with relays in it, the headlight relay is stuck. Tap it with something and it will release. Probly should replace the relay. See owners manual or google the headlight relay location. Cheap at an auto store.

Jun 23, 2014 | 2004 Subaru Outback

1 Answer

Headlight relay located


What year expedition ? The head lamps are controlled by a module (electronic module ) VSM- vehicle security module or SJB - smart junction box on newer expeditions . The module received a input from a shorted switch or light sensor or something of that nature . Having a professional type scan tool hooked up ,checking codes in the GEM or SJB would be the first step . Or you could find wiring diagrams for the inputs to the module , take your vehicle apart an test the circuits with a volt meter . You can find wiring diagrams at www.bbbind.com .

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1999 oldsmobile 88 headlights wont shut off


Pull this circuit breaker till you can find the problem. Check for applicable trouble codes. You have a lighting control module, I can't troubleshoot that component from here.
headlamp circuit breaker-aqqcxoafxh3vrrogaagbglgs-1-0.jpg

Apr 29, 2017 | 1999 Oldsmobile 88

3 Answers

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

1 Answer

I bought a 1996 Subaru Impreza L 4dr 5speed AWD that runs and starts fine but when I was installing fog lights i noticed that there appears to be an alarm hooked up (it says "code alarm elite DM...


Battery Constant 12v+ Positive Wire (+): Black/Yellow
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness

Starter Positive Wire (+): Blue/Red
Starter Positive Wire Location: Ignition Switch Harness

Ignition Positive Wire (+): Red
Ignition Positive Wire Location: Ignition Switch Harness

Accessory Positive Wire (+): Red/Yellow
Accessory Positive Wire Location: Ignition Switch Harness

Parking Light Positive Wire (+): Red
Parking Light Positive Wire Location: Low In Drivers Kick Panel

Power Door Lock Negative Wire (-): Add Actuator. This vehicle uses a central door locking system. When connecting a keyless entry, you will need to add a door lock actuator and some units will also require (2) extra relays.
Power Door Lock Negative Wire Location: To Drivers Door Only

Power Door Unlock Negative Wire (-): Add Actuator. This vehicle uses a central door locking system. When connecting a keyless entry, you will need to add a door lock actuator and some units will also require (2) extra relays.
Power Door Unlock Negative Wire Location: To Drivers Door Only

Door Trigger Negative Wire (-): Red/White
Door Trigger Negative Wire Location: In Black Plug, Above Hood Release

Domelight Supervision Wire: Use Door Trigger, Requires Relay
Domelight Supervision Wire Location: N/A

Horn Negative Wire (-): Red/Green
Horn Negative Wire Location: At Steering Column Harness

Tachometer Wire Negative Wire (-): Black/Blue
Tachometer Wire Negative Wire Location: At ECM, Under Drivers Side Dash

Brake Light Positive Wire (+): White/Black
Brake Light Positive Wire Location: At Switch Above Brake Pedal

CODE ALARM SYSTEM

Used on:
Impreza 1996-2001
Legacy 1995-1999
Forester 1998-2000

codealarmremote2.jpgBattery GP-23A

Lock: Left button will lock all doors. Double chirp indicates locked.
Unlock: Right button will unlock driver's door only. Hold unlock button app 6 seconds, it will unlock all doors including rear gate. Single chirp indicated unlock.
If the car chirps or lights flash 4x the alarm was triggered.
Panic. Press both buttons to activate emergency honk and flashing lights.
Valet mode: With optional alarm onlyPress the red alarm button on the left of the steering wheel. The light will quickly double flash. To re-set back to normal mode, press the red alarm light button again

Battery failed and lights flashing?
Parking lights will flash when the vehicle's battery is disconnected and reconnected.
To stop lights from flashing, either:
Press remote transmitter "UNLOCK" button once OR turn the ignition switch to the "ON" position and press programming button for one second (see below).
The vehicle interior (courtesy) light and door open warning light (DOOR AJAR indicator) will then illuminate for 60 seconds when the ignition is turned off, or until the doors are locked with the remote transmitter. Yes, the dashboard instrument panel lights will flash when the parking lights flash.

Programming or Overriding the Alarm when you have lost the remote
Open driver's door.
Turn ignition key to 'On'
Press and *hold programming button* in (see diagram, button under dashboard)
After 15 seconds the the door locks will cycle 3 times. Do not release Programming button.
Press lock (left) button the remotes to be programmed. The door locks will cycle one time. Exit programming mode by releasing Programming button under dashboard and turning key to off.


codealarmremote1.jpgCode Alarm Programming Button is under dashboard on the kick panel by the driver's left knee, left of the steering column. If you can't find it, it might still be tucked up in the wiring harness higher up in that same general area. The botton is recessed in a plastic ring (see diagram).
This button must be pressed while programming remotes or if the battery was disconnected and the lights are flashing.

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1 Answer

Headlights do not turn on at the light switch.


manual headlamps

Visual Inspection Chart
Mechanical Electrical
  • Headlamp switch
  • Multifunction switch
  • Central junction box (CJB) fuse:
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    • 30 (15A)
    • 46 (10A)
    • 47 (10A)
  • Circuitry
  • Headlamp bulbs
  • Daytime running lamp (DRL) relay No.1


Autolamps

Visual Inspection Chart Mechanical Electrical
  • Headlamp switch
  • Central junction box (CJB) fuses:
    • 19 (5A)
    • 56 (30A)
  • Circuitry
  • Headlamp bulb
  • Daytime running lamps (DRL) full relay No.1 (if equipped)
  • Vehicle security module
  • Photocell


If autolamp system, Vehicle security module has a headlamp rela inside of it. under left side of dash.

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1 Answer

My 2002 astro van door locks will not fully operate. I replaced the door actuator on the passenger side, but now the driver's door won't work, the hatch is stuck shut on one side, the headlights will...


On repairing door locks first check the cigarette lighter and see if it works, the door locks gets it power on the same fuse. If good,you then need to check if 12VDC is at each of the actuators when pressing the switches for the locks. If no power is not at the actuator you should suspect the power lock relay to be defective. This relay is located beneath the steering column within a major cluster of connectors and is located within a bank of 3 relays located within a covered housing. These 3 relays are identical and you can temporaly reverse them to see if this will solve the problem. If it does, GM's part # is RY-232. Can't help you on the rest.......sorry!

Mar 26, 2009 | 2002 Chevrolet Astro

1 Answer

2002 Saturn SL headlights stay on


On a 2002 saturn, the headlights are not automatic, you have to turn the knob on the end of the signal light lever to turn them off.
Also, some models are equipped with "Daytime running lights"; a safety feature. these daytime running lights are just the amber colored front signal lights, which turn on automatically when the parking brake is released to make your car more visible during daylight hours. Furthermore, if any headlight refuses to shut off, there is an electrical problem, most likely a failed relay, which are located in the underhood fuse panel and can be checked quite easily with a multimeter, relay failures are veryrare, but not unheard of, especially in vehicles equipped with aftermarket fog lights. Thankfully they are cheap and readily available and are as easy to change as a fuse.

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