Today Vernon came by to help me pull an engine, after about 10 minutes of jacking with it I was more interested in finding out why Vernons cooling fan would not run on his 91'. The first thing we checked was the fusible link at the starter solenoid, it was fine checked it with a meter.
After looking at the CHILTON there are 2 black/ orange wires that feed power to the IRCM. There wasn't any power. These wires have power at all times regardless of key position. After tearing apart the high current fuseblock and the harness as far as we could see all the wiring on that side of the car seemed fine. Since Vernon has been in a few fender benders lately it made it a little easier/harder to work on the car. The easy part was that with the header panel destroyed it made it easy to see the wiring behind it. The harder part was getting the mushed parts out of the way enough to actually get to the wires.
Since I have one car torn down pretty good (the damaged header panel on Vernons car actually came from my parts car, just thought I'd dig a little more ) I took a look at the pass side where the headlight was. There is a harness with 4 branches 1 goes to the headlight, 1 goes to the turn signal , 1 goes to the cornering light (or it's plugged if you don't have them) and the last one is about an 8ga wire with a connector on it.
One side is Black/Orange and the other side is Yellow. This connection gives power to the IRCM.
Always check the black/orange wires for power before testing other things, if not you end up wasting a lot of time. If the module doesn't have power for the fans then turning the relays on in the IRCM doesn't do any good.
Thank you for listening and have a nice day.
Next week: Why won't Vernons car start with the key?
Jeff
It should be noted that the these power wires I am referring to were only verified for fan operation and not any other function of the IRCM in perpetude throughout the galaxy, or whatever.
After looking at the CHILTON there are 2 black/ orange wires that feed power to the IRCM. There wasn't any power. These wires have power at all times regardless of key position. After tearing apart the high current fuseblock and the harness as far as we could see all the wiring on that side of the car seemed fine. Since Vernon has been in a few fender benders lately it made it a little easier/harder to work on the car. The easy part was that with the header panel destroyed it made it easy to see the wiring behind it. The harder part was getting the mushed parts out of the way enough to actually get to the wires.
Since I have one car torn down pretty good (the damaged header panel on Vernons car actually came from my parts car, just thought I'd dig a little more ) I took a look at the pass side where the headlight was. There is a harness with 4 branches 1 goes to the headlight, 1 goes to the turn signal , 1 goes to the cornering light (or it's plugged if you don't have them) and the last one is about an 8ga wire with a connector on it.
One side is Black/Orange and the other side is Yellow. This connection gives power to the IRCM.
Always check the black/orange wires for power before testing other things, if not you end up wasting a lot of time. If the module doesn't have power for the fans then turning the relays on in the IRCM doesn't do any good.
Thank you for listening and have a nice day.
Next week: Why won't Vernons car start with the key?
Jeff
It should be noted that the these power wires I am referring to were only verified for fan operation and not any other function of the IRCM in perpetude throughout the galaxy, or whatever.
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