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One side the lights do not work. Both fans and the other side lights work. I tested the power at the light and there is none when the swtich is turned on but there is a slight when the switch is off.

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  • Cars & Trucks Master
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The slight reading on the voltmeter is reading thru the ground to other sources. the bulb or ballast on the one side could be inoperative

Posted on Apr 30, 2015

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Right side headlight on 2006 pt cuiser wont work

Hi Robert, I'm glad to help! You'll need to make sure you are getting power and ground to the connector for the bulb. (1) Turn the lights on and using a test light, hook it to the negative side of the battery post, then probe the connector terminal, if your not sure which one is the power side it's OK to probe each terminal. If none of them light up then you have lost power to that connector and will need to trace the wire back to see where it may be broken or grounding out. If it does light up the power is good and now will check the ground. NEXT: Hook the test light up to the positive side of the battery and probe the connectors if it does not light up you have a ground problem and need to trace the wire back to see where it is broken. NOTE: The TIPM Totally Integrated Power Module control's the headlamps on this vehicle and could possibly have a problem within the TIPM. Hope this helps and have an awesome day Robert.

May 01, 2014 | 2006 Chrysler PT Cruiser

1 Answer

I have a 1997 mazda protege LX . I am suspecting

use a test light and probe the wires .some fans don't work both at the same time so it maybe necessary to let the car reach operating temp to see if there is power and ground to the fans.

Jul 17, 2011 | 1997 Mazda Protege

2 Answers

How do i test the fan if i already replaced the relay and the fan switch and it still doesn't work? What else could be the problem?

you could apply 12v battery power directly to the fan itself...there should be 2 wires coming from the center of the fan, follow these and you should come to a plug that you can un hook as if to remove the fan. on the fan side of the wires, hook them to 12v power, one wire + one to - if the fan does not turn, switch the wires polarity and test again. ( the fan should run either way, polarity just dictates direction of rotation) if the fan spins, the problem is on the car side. if not the fan itself is suspect. test vehicle side with known good fan or test light.

Mar 24, 2011 | 1992 Toyota Corolla

2 Answers

2001 jeep cherokee overheating have replaced radiator thermostat thermostats sensor There is an electric fan that does not come on it works when you hook power strait to fan have also replaced relay in...

You sound pretty good at this
Go to a local repair shop and have
them print out a wiring diagram
They will have to be successful enough
to subcribe to All Data,Mitchell,etc

Dec 04, 2010 | 2001 Jeep Cherokee

1 Answer

Only one reverse light goes on on my 2007 VW Passet, how do I fix?

if you have already tried changing the bulb and still not working than the simplest way is to run a wire from the working bulb to the other side saves time trying to unravel all the harness's first you will need to find wich of the two wires is not doing its job the power wire or the ground wire? test light will help you with that, with engine off put your car in reverse turn the ignition to on that will turn on the working reverse light use a test light to find the problem go to the none working light remove the bulb using the test light touch each connection point to see if any light up the test light if not then you have a bad power supply, but if it does light up then you have a bad ground wire in either case you can jump the working light to fix the light if ground is bad jump the ground and vise versa.......

Nov 14, 2010 | 2007 Volkswagen Passat Sedan

1 Answer

I have 86 celibrity, electric fan will not work. if i take test light and check where the relay switch is, red wire hot and light comes on, if i turn on ing. switch and take test light to green wire (2nd...

What your doing when you touch the test light to that 3rd wire is actually closing the circuit and powering the fan, like the temperature controlled switch should be doing once the engine warms. That sending unit would be screwed into the cooling system where the water can touch it and most likely is in the radiator lower tank or bottom of radiator side tank. Find that sensor and test the wires for power when engine is hot and fan should be on. You could put a toggle switch on it to activate the fan until you get the proper sending unit/sensor.

Jul 11, 2017 | 1986 Chevrolet Celebrity

1 Answer

Light on panel work but fan doesn't engage. Fuse

turn key on,and start by testing each fuse with a test light to see if you have power on both sides of the fuse,
if you find no bad fuses,locate your blower motor under the dash and behind the glove box,find the two wires going to it and check with your test light for power,if you have power there replace motor,if you don't follow the motor wire where they plug into a resistor"about 12 inches away",and replace the resistor.

Dec 27, 2009 | 1996 Buick LeSabre

1 Answer

1999 jeep grand cherokee laredo 4.0 litre 6cyl automatic cooling fan does not come on to cool engine, causing overheating of the engine.

OK here we go you will need a test light for the following tests, i will try to be as descriptive as possible so lets get started

fist start the engine and turn on the a/c that should command the fan on.
right front engine compartment next to the battery is the power distribution center pop off the top, ground your test light to the negative battery terminal and find fuse number 10 it is a 40 amp fuse check both sides of this fuse with your test light, if you have power on both sides of the fuse than we shall go further.

unplug the connector from the cooling fan, there should be two wires in the plug one is dark green and the other is black with a pink tracer, with your test lite grounded to the negative battery terminal check the dark green wire for power, if there is power there than move your test light ground clamp to the battery positive terminal and test the black wire for ground,
if testing the black wire made the test light shine than the ground circuit is good, if it did not than check you ground connection behind the right headlight.
when testing the dark green wire, if the dark green wire made the test light shine and the ground circuit is good than you simply have a bad coolant fan motor.

I suspect you were not getting power to the fan motor so you will need to take a look at the radiator fan relay, this is a special solid state relay mounted to the inside of radiator core support on the right side down behind the bumper.

here you will find a single plug with 4 wires in it

black = ground
dark blue / pink = relay controll from pcm
dark green = output to radiator cooling fan
gray = battery power from fuse # 10 in pdc

unplug the relay ground your test light to the battery negative terminal, with the engine running and a/c turned on check the gray wire the test light, it should turn on if not recheck fuses.

move your test light to the battery posistive terminal and test the dark blue / pink wire, if the test light turns on than you have a bad radiator fan relay, you can pick one up at your local parts store for about $85.00 just make sure you get a high quality one the cheap ones have a hard time with the amprege consumption of that fan.

good luck


Jun 14, 2009 | 1999 Jeep Grand Cherokee

1 Answer

Main headlight on near side not working

try testing for power at the headlight if there is none u should check the fuses

May 06, 2009 | 2007 Fiat X1/9

1 Answer

2003 Hyundai Tiburon

The tiburon turn signals are controlled by a bcm (body control module) The bcm controls the ground to the signals. These always go bad and cause the signal to stick on or just not work. hope i was a help.

Mar 14, 2009 | 2003 Hyundai Tiburon

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