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  #1  
Old 01-29-2002, 10:08 PM
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Join Date: Oct 2001
Location: Currently assigned @ Travis AFB, CA
Posts: 165
Question Lamp problems

1. I have some strange lamp problems in my 88 260E California. These are its symptoms:
. a. High beam works, but only on the passenger side
. b. Flashers do not work with lights on or off.
. c. When I use the turn signal to indicate turning left the drivers’ side headlight and the drivers’ side turn signal seems to alternate their brightness during the process! Also at the same time the fog lights comes on very dimly!
. d. The fog lights works only with the headlights off. When the headlights are on, it only works on the passengers’ side, also at the same time the drivers side headlight dims.
. e. The hazard lights function works, only minor thing is when lights are on, the drivers’ side headlight and drivers’ side turn signal seems to alternate their brightness during the process.
. f. For the rear everything works, stop, markers, tail, top brake and turn signals.
. g. Then of course the lamp fault light on the dash is on (only when the lights are on.

2. The following are some information about the vehicle:
. a. The lights always had been like this when I’ve recently acquired it last year.
. b. I believed it had a front-end wreck because some of the following evidence; hood not original (no VIN on the passengers’ side), outside temperature probe not present (cut and missing), windshield not original, power steering cooler line bent, ABS line bent a little and shows a fault on the dash.
. c. There was an alarm system installed (Viper?). I disconnect most of this I think it was connected to the head lights, ignition key switch, and some other things.
. d. There is an audio system installed, bass woffers, amps the works. I didn’t mess with this because it was not connected to the lighting.

3. I have done the following but no luck:
. a. Check all the bulbs and if not already change them to OE. NO CHANGE
. b. Took out the two headlight/turn signal assembly and switched them from side to side then plug them in to see if any change. NO LUCK SAME EXACT SYMPTOMS WITH OTHER SIDE LIGHT ASSEMBLY
. c. Got a different lamp-fault module from the junk yard to see if this is malfunctioning. NO LUCK SAME EXACT SYMPTOMS
. d. Ohmed out the flasher switch. Good tone and connectivity.
. e. Traced out all wires from head lights/front turn signals to the lamp-fault module, all are original factory colors.

4. I will look again if I’ve missed anything with more wires. If youall have any ideas or same experience I do welcome them.


Thai GI sends...

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  #2  
Old 01-30-2002, 08:13 AM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
GROUND. You sound as if you have a ground issue or the wrong bulbs in the holders. IF you have a ground issue, it could be located beside the radiator in front of the headlamp. This is where the ground point is.
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  #3  
Old 01-30-2002, 01:57 PM
za_w124_200e
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Ground - it's missing, or more likely, has a high resistance. Look for corrosion at the ground point for that side of the car. Maybe it got messed up when the car got 'fixed'.

happy hunting !

L
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  #4  
Old 01-31-2002, 05:36 PM
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Join Date: Oct 2001
Location: Currently assigned @ Travis AFB, CA
Posts: 165
flashers still not working

Sirs,

Youall had hit it on the nose! Still have flasher problem but let me tell the folks what happen first:

1. I went to the grounding points on the drivers side it was connected, I disconnect it from the body looks like this is the part where it was repaired. The part where the bolt connects to the body was a lot of paint. I got my Dremel tool out and sand some paint away on both sides so I have some fresh metals expose.
2. Resolder the connections at the grounding points and also the connections at the bulb end just incase I have any hairline cracks.
3. Put everything back and now the fog-lights, high-beam, turn signal works the correct way.

Ok now about the flasher, It does not work with the lights on or off. The high-beam works how ever. I did the following test and no luck yet:

1. If the high-beam works, the path should be clear from the bulbs all the way to the switch (high-beams, flashers, turn-signal, windshield wiper combination switch), is this right?
2. To test the switch for high-beams I jumped pins 1 to 2, push lever forward for high-beams = good tone and connectivity. Is this right?
3. To test the switch for Flashers I jumped pins 11 to 2, pull lever backward for Flashers = good tone and connectivity. Is this right?
4. Should I be checking for the amount of ohm too? I just got the DMM on the diode setting and listening for tones only.
5. Anything else I’m missing here?


Thanks
Thai GI sends...

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