BCM?

[HUMTECH]

Also wrapping module in latex is prob not a good idea, will still get some moisture in it due to heating up and cooling down creating condensation. With it wrapped up there is no where for the condensation to get out

[giant h2]

Originally Posted by HUMTECH

Also wrapping module in latex is prob not a good idea, will still get some moisture in it due to heating up and cooling down creating condensation. With it wrapped up there is no where for the condensation to get out

Looks like its the ignition switch? Sprayed some WD 40 on the cylinder and then went over to a friend for scan. Of course when I got there everything worked fine! My master tech buddy scanned the computer and the BCM stored codes read power mismatch. After I left stopped for gas and shut the car off pulled out the key opened the door and got out and there it was again dash lit up and radio on. Put the key back in and wiggled it and power went off, so what do ya think?

[HUMTECH]

Could be. If the BCM is getting a backfeed from somewhere it can also set that code as the BCM is the power mode master. I would leave the wiper fuse out for awhile and see if it acts up with it out. Seems odd that it quit with it out before now all of a sudden you wiggle the lock cylinder and its changed it. Also try putting the key just halfway in ignition cylinder and lightly try to rotate it forward, if battery light comes on ignition switch could be out of adjustment(they are adjustable)

[giant h2]

Originally Posted by HUMTECH

Could be. If the BCM is getting a backfeed from somewhere it can also set that code as the BCM is the power mode master. I would leave the wiper fuse out for awhile and see if it acts up with it out. Seems odd that it quit with it out before now all of a sudden you wiggle the lock cylinder and its changed it. Also try putting the key just halfway in ignition cylinder and lightly try to rotate it forward, if battery light comes on ignition switch could be out of adjustment(they are adjustable)

Left the fuse out all day, no issues! Put it in after lunch and there goes trouble! Do you think that the 6 month old WCM (wiper control module) could be bad already? Did these have quality issues? I am confused. And why did a key wiggle fix it on one occasion? Oy

[giant h2]

Took off the cowl to expose my least favorite part, the WCM (wiper control module) cover. When I removed the small harness, nothing changed. When I removed the larger harness the power mode reset to key out and everything went dark as its supposed to. Once again Humtech was right on! Also, when I plugged the wire harness into the wiper cover, and tapped on the back the power also reset to normal, I find that very weird because there are no moving parts just a circuit board?

Last question since I bought this part in October from GM parts direct will AC Delco warranty it?

[HUMTECH]

Not sure on the warranty. If you closly inspect the circuit board you may notice cold solder joints. May see very fine cracks around base of a solder joint. You can try to heat any of these up with a soldering iron and retry it in truck. I used to fix the old chevy pulse boards sometimes this way.

[giant h2]

Originally Posted by HUMTECH

Not sure on the warranty. If you closly inspect the circuit board you may notice cold solder joints. May see very fine cracks around base of a solder joint. You can try to heat any of these up with a soldering iron and retry it in truck. I used to fix the old chevy pulse boards sometimes this way.

Thanks for all the help I appreciate your knowledge!