Electrical issue or ECM or ?
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Electrical issue or ECM or ?
I need some help with an electrical issue – I had a P0788 – (3-2 Downshift Solenoid).
I was about 200 miles from home and just manually up shifted from a dead stop when needed (basically when pulling out of a gas station) The radio played the entire way home.
Took it to the transmission shop, they said the solenoid shorted and replaced it.
Driving home from the Trans shop, the radio worked. The next day my radio would not come on (aftermarket double din with the OnStar/door chimes harness from Crutchfield / non-Monsoon), then I noticed my grille lights were not coming on. I checked the #13 fuse, and it was good, the climate control works (it is on the same fuse).
It’s odd to me that the climate control works, but the other 2 items on the fuse don’t.
PCM Reset didn't work, I touched battery cables together for 60 seconds then left unhooked for about 15 minutes and still didn't get the radio or the grille lights working.
Sounds like a shorted wire somewhere? but I have no idea where to start looking… or which (ugh) wiring harness to trace. Could it be one of the controllers somewhere?
I have replaced the battery terminals last year with good ones and they are nice and tight.
I’ve read about the drain tube issues and do have that issue, but it has been minimal water in the passenger floor. The PO siliconed the sunroof (mostly anyway, not a great job of making it completely water tight) There was no rain for the week that the solenoid went out and the time I got it back.
If it is the ECM who is better PCMofNC or FS1inc? I have replaced the passlock sensor and originally had the key fob’s done by a local locksmith, so I don’t know if they are programmed to the original VIN or will I have to have them reprogram if I get a replacement ECM. It sounds like I would send them my ECM to pull what they can from mine and should be fine, but is that the case?
It’s a 2007 H3 base / 3.7
Thanks
I was about 200 miles from home and just manually up shifted from a dead stop when needed (basically when pulling out of a gas station) The radio played the entire way home.
Took it to the transmission shop, they said the solenoid shorted and replaced it.
Driving home from the Trans shop, the radio worked. The next day my radio would not come on (aftermarket double din with the OnStar/door chimes harness from Crutchfield / non-Monsoon), then I noticed my grille lights were not coming on. I checked the #13 fuse, and it was good, the climate control works (it is on the same fuse).
It’s odd to me that the climate control works, but the other 2 items on the fuse don’t.
PCM Reset didn't work, I touched battery cables together for 60 seconds then left unhooked for about 15 minutes and still didn't get the radio or the grille lights working.
Sounds like a shorted wire somewhere? but I have no idea where to start looking… or which (ugh) wiring harness to trace. Could it be one of the controllers somewhere?
I have replaced the battery terminals last year with good ones and they are nice and tight.
I’ve read about the drain tube issues and do have that issue, but it has been minimal water in the passenger floor. The PO siliconed the sunroof (mostly anyway, not a great job of making it completely water tight) There was no rain for the week that the solenoid went out and the time I got it back.
If it is the ECM who is better PCMofNC or FS1inc? I have replaced the passlock sensor and originally had the key fob’s done by a local locksmith, so I don’t know if they are programmed to the original VIN or will I have to have them reprogram if I get a replacement ECM. It sounds like I would send them my ECM to pull what they can from mine and should be fine, but is that the case?
It’s a 2007 H3 base / 3.7
Thanks
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