Chrysler Repair: 93 LeBaron V6 Headlights Stay on- Canadian, wire pins, chrysler canada


Question
QUESTION: Roland,
      I have a 1993 Chrysler Canada LeBaron V6. The other day I noticed my headlights were on. Dash switch off, engine off? Also noticed "HI" beam indicator was on.I have a lot of electrical experience, so tried the following to troubleshoot problem. Removed L&R fuses under dash, still on. Disconcerted al viable relays in engine compartment. Accessed steering column light switch module and disconnected cable. After all of the above the headlights are still on and indicator still on? As a stop gap I have disconnected the light harnesses from wire loom. Where do I go from here?
ANSWER: Follow-up suggestion:
Because the hi beam indicator is "on" I suspect that it is only the hi beams that are stuck and that is due to a stuck or shorted to ground optical horn switch (the position that flashes your high beams) or the high beam relay which is the relay in the third position of the top row is stuck on
(there may not be a high beam relay...I can't be sure because I only have the '92 and '94 diagrams and can't be sure which is the case). So check your optical headlamp switch for a short to ground or fused internal points to ground.
Roland



Hi Ken,
Good work so far, but there is more to the circuit.
I believe that your problem is the headlamp relay located under and to the side of the dash on the left side (to the left of the driver's left leg on what is called the cowl) in a module called the relay bloc. The headlamp relay is  in the 2nd position from the front of the top row. That relay could either be stuck "on" or it may be falsely activated through its normal coil by the switch to ground of the headlamp switch on pin 12 (orange/white wire) being falsely grounded, or it could be grounded by a short at the body computer (same color wire pins 20 & 21 of the natural color plug, located on the right side cowl) due to water dripping down on to the top of the unit from the windshield during a rain storm or car wash. So you should be able to pull the relay, maybe substitute an identically numbered relay from the bloc and if it still stays on then check to see why pin 13 of the relay socket is falsely grounded (that is the frontmost pin of the socket). You could unplug the plugs at the headlamp switch or the body computer to see which one is grounded. If the body computer plug is the problem, spray plug and socket with circuit board cleaner to absorb the moisture and clean the terminal then let it evaporate.
Roland

---------- FOLLOW-UP ----------

QUESTION: Roland,
        I think I have found the problem. This car was built in Oct. 1993 and I do not find a relay block as you describe under left side of dash. The is three relays, horn, hazard and Time delay, which I beleive is for interior lights. I did discover how to access and remove the dash head light control switch. After removing the connector from the pull switch the lights went out. I listened closely for a relay click as I wiggled the connector body and could not hear any sounds. Using an ohmeter I find that there is a short inside the switch between terminals "P" and "B1" no matter the position of the switch. It took some time to figure out howto remove all the dash trim to access the mounting screes for the headlight dash switch. Thank you for your help and will let you know the final out come.

Ken
ANSWER: Another thought:
Do you perhaps have the LeBaron 4-door sedan? I was assuming all along that you have the convertible/coupe. Those are entirely different cars!



Hi Ken,
Our messages (my and your follow up) crossed in the mail, so let me know what you find. I believe there is a 15 position relay block on the side wall in front of the door opening, with only a few relay nonetheless, correct? It was used in 92 and 94 for sure but with different numbers of relays in the two cases. So look again.
Roland

---------- FOLLOW-UP ----------

QUESTION: Hi Roland,
         To answer your question, Yes it is the 4 door sedan hard top, manufactured October 1992, Sold as a 1993.
It took three tries to get the correct light switch from the parts house. Replaced the switch this morning and still have the same problem. Maybe this is a clue: The hi-beam indicator is on, but dim. When I pull the light switch all the way out and use the hi-low switch the indicator goes bright and dim depending on the position of the hi low switch. No 15 point relay block on the side wall, just a small gray relay block next to the fuse holder facing my left shin.

Ken
ANSWER: Hi Ken,
Now I have the ID for the vehicle. I am still limited to the '92 diagrams but I believe they apply to your '93. I wonder if the car was originally manufactured for sale in Canada because those required there to be a daytime running lamp system and therefor a daytime running lamp module. If so, then that is what I suspect is stuck "on", but please verify that you have such a car and that it is the low beam filaments that are on all the time. That module is located on the left side of the engine compartment on the inner fender shield and has a 10-pin plug with 7 wires. It appears to be near the wheel well and possibly inside the wheel well rather than the engine compartment on the other side of the wheel well. You can find it by tracing the headlamp wiring back to it. If this is the case, we can try doing some voltage measurements there before you buy a new such module. But tell me first if the car appears to have been first sold in Canada or see if you can find such a module.
Roland


---------- FOLLOW-UP ----------

QUESTION: Hey Roland,
         Ok answer questions first. Yes the car was built for sale in Canada. Yes the low beam lights are on.
After a half hour of searching and reading your last note over and over I found the daylight module mounted forward of the left front tire, up and behind the wheel well liner. I uplugged the module and the problem went away, success! I pulled the moudle and found that water has gotten into it and it has burned out, love that aroma. Going to replace the module. Thank you for all of your help and guidence.

Ken

Answer
Hi Ken,
I am pleased that you found and solved the problem. It took a few iterations but we finally got to the bottom of it. I'll note your description of its location for future questioners. You are welcome, it has been a pleasure working with you.
Roland