turn signals dont work with headlights on (2000 cherokee)
04-06-2011, 08:20 PM
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Year: 1991
Model: Cherokee
Engine: 4.0
turn signals dont work with headlights on (2000 cherokee)
I have searched for days now and no one has the same problem as i do. when i turn the ignition switch on i hear the cigar lighter relay click on. not sure if this suppose to happen or not. if i put a lighter in the cigar lighter spot it makes the relay buzz and the PND21 light,transfercase light, and the 3 switches for the fog light, defrost and rear wiper iluminate. they will now iluminate with the headlight switch pulled out. when i pull the headlight switch out the turn signals wont work. neither will the emergency flashers. All lights work as they should. when i turn the lights off the turn signals will work as they should. The battery is fully charged and the car runs just fine. do you think it is a bad headlight switch but i thought the turn signals didnt run through that switch. then i thought the flasher relay but the turn signals work along with the emergency flashers. Turn signal switch. I have checked all the grounds and they all have 1.5 or so ohms. I disconnected the main headlight harness under the airbox and that did nothing but make the turnsignals flash faster. Also disconnected the rear lights harness and that did change anything either. I dont have a trailer harness. What do you guys think.
04-06-2011, 08:40 PM
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Year: 1998
Model: Cherokee
Engine: 4.0 L
I have searched for days now and no one has the same problem as i do. when i turn the ignition switch on i hear the cigar lighter relay click on. not sure if this suppose to happen or not. if i put a lighter in the cigar lighter spot it makes the relay buzz and the PND21 light,transfercase light, and the 3 switches for the fog light, defrost and rear wiper iluminate. they will now iluminate with the headlight switch pulled out. when i pull the headlight switch out the turn signals wont work. neither will the emergency flashers. All lights work as they should. when i turn the lights off the turn signals will work as they should. The battery is fully charged and the car runs just fine. do you think it is a bad headlight switch but i thought the turn signals didnt run through that switch. then i thought the flasher relay but the turn signals work along with the emergency flashers. Turn signal switch. I have checked all the grounds and they all have 1.5 or so ohms. I disconnected the main headlight harness under the airbox and that did nothing but make the turnsignals flash faster. Also disconnected the rear lights harness and that did change anything either. I dont have a trailer harness. What do you guys think.
All my lights work except my left tail light and front marker,license plate light.
04-08-2011, 12:37 PM
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Year: 1991
Model: Cherokee
Engine: 4.0
no one has any more thoughts? It seams like something is draining my battery also. i noticed that i have a sluggish starting in the morning.
08-08-2011, 09:38 PM
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Year: 1991
Model: Cherokee
Engine: 4.0
What i did was reset the computer by pulling the battery and touching the terminals together. also replaced the relays in the fuse box with others i had laying around. I dont know if any of these things did anything at all. It seems to just have started working one day and havent had any problems since. Sorry i cant give more help. wish i had the exact answer to why mine was acting this way. good luck
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