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10-14-2015
How do you know if your ECU/PCM (not even sure if they are the same thing) has been shorted, mine is not communicating with ODBII reader. I have the check engine light on, I had the serpentine belt go a couple of weeks ago and it damaged the fuse box wiring and cut a hole in the coolant reservoir. All items damaged have been either repaired or replaced. Is there instructions somewhere to reset the ECU/PCM?
The car runs but I have noticed that gas millage suck's!!
Any ideas would be appreciated.
10-14-2015
If the CIG lighter fuse is blown, the OBD port will not work.
10-14-2015
That was fast, now that you mention the lighter is not working, I guess I need to check the fuse!!!! Thanks,
10-14-2015
I didn't have a 25 amp fuse, but I placed a 10 amp for now. There is power on the lighter I placed a small usb car charger on it and it show's power there but it still doesn't communicate with the PCM. Once I get off work I'll get a 25 amp fuse in it.
Any other ideas?
10-14-2015
The cruise control doesn't work either I'm guessing the fuse is probably bad also do you think this has something to do with it also?
10-14-2015
the fuse # is not the issue.
maybe take the scanner plug and work it on an doff a bunch of time to maybe clean the pins inside the obd2 port. could just be dirty.
or you got a pulled wire coming out of the obd2 port.
10-14-2015
Originally Posted by lentesclaros
i dont think so. but check to see if your third brake light bulbs are working, if they dont work, cc quits working.
10-14-2015
Ok, I'll check that out also. This belt coming off was a major problem since it scrapped all the insulator off the wires without knowing I ran the car and everything went crazy all the lights on the dash flashed on and off and the car stalled on the freeway, it would start up and run a short distance and it would do the same thing again. After re-checking all the work that I had done to it and rechecking all of the electrical connectors that I had unplugged (battery and alternator) to get a new belt and water pump put in that I discovered the issue.
10-14-2015
Ok, so I found two fuses burnt PCM &PCMETC. Now replaced and still no communication with PCM on OBDII reader. Anyone has any ideas on how to reset PCM?
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10-14-2015
if you want to clear the cel light unplug the battery for 30 minutes. that will reset the pcm.
wont help your obd2 port to work tho.
10-14-2015
Ok, will try that tonight.
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10-14-2015
I would like to thank all that have commented on possible fixes,
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