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Electric Radiator Fans Randomly Turning On When Ignition Is Off
Just a little update: it was indeed the PCM. Got that sorted and now it's working good. :)- JJ3373
- Post #15
- Forum: Audio & Electronics
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J
Electric Radiator Fans Randomly Turning On When Ignition Is Off
Perfect! I'll investigate both.- JJ3373
- Post #14
- Forum: Audio & Electronics
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J
Electric Radiator Fans Randomly Turning On When Ignition Is Off
Awesome, sounds easy enough. Yep, I know originally it had a 5.3 in it, according to the VIN. When I bought it, the guy said there was a 6.0L in it. I didn't care, since I don't mind either engine, but I'd rather verify before getting the new PCM, so the tune is right. Are any of those markings...- JJ3373
- Post #12
- Forum: Audio & Electronics
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J
Electric Radiator Fans Randomly Turning On When Ignition Is Off
Well, fans kicked back on. Next thing is to get that PCM. Supposedly, it's had a 6.0 put in in the past, but is there anyway to confirm that, before I get the new PCM?- JJ3373
- Post #10
- Forum: Audio & Electronics
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J
Electric Radiator Fans Randomly Turning On When Ignition Is Off
It's looking like the PCM at the moment! Today the fans were stuck on with ignition off, even with 3 new relays. I disconnected the PCM and some of the pins were crusty, including the coolant temp sensor pin. Also, probing the fan signal wires that connect to the PCM show no shorts, so the...- JJ3373
- Post #8
- Forum: Audio & Electronics
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J
Electric Radiator Fans Randomly Turning On When Ignition Is Off
Hello, everyone! New to the forum, so I hope this is in the right section. I have a 2006 suburban with the dual electric radiator fans. After leaving the truck off for a random amount of time, the radiator fans will turn on, draining the battery. I've replaced the coolant sensor, and will be...- JJ3373
- Thread
- Replies: 20
- Forum: Audio & Electronics
