Radiator Fans

[HotZ28]

Originally Posted by redrum3g

ok, also i failed to mention i still have the wire running from the fan to the switch still connected to the manual switch but off the positive battery will that cause the codes to come up?

As previously mentioned (on several occasions), your fans are designed to run using the ECT and PCM, not a “Hot Jumper” wire! Did you have a QDM fault, before installing the “manual switch”? Why is the jumper still installed? BTW, if you do not use proper troubleshooting techniques, or follow our advise, you will never resolve this problem!

[redrum3g]

so i changed my pcm, alternator and battery. when i drive it it drives great but after like ten minutes of driving my car lights will dim high and low and my check engine light will blink and when i cut the car off it will not start my battery is drained why?