99 buick regal short to ecm fuse

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JP - 08 Oct 2006 18:21 GMT

I have a friend that had a bad battery so he used a charger on 200 amp
boost to
start it. He put in a new battery but now has some wierd problems. The
speedometer
and temp gauge do not work, warning lights stay on in the dash, and the
headlamp
chime stays going with the lights on with the engine running. It still runs
fine. It blows
an ecm fuse every time you plug in a new one. I have looked all over for any
melted
or shorted wires. Has anyone had a similar problem and might know where to
look
for a short?
Thanks, JP

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bnaylor - 09 Oct 2006 02:01 GMT

JP Wrote:

> I have a friend that had a bad battery so he used a charger on 200 amp
> boost to
[quoted text clipped - 13 lines]
> for a short?
> Thanks, JP

A common problem when you have severe electrical problems and/or
improper jump starting causing the ECM/PCM fuse to blow is damaged
wiring at the engine compartment fuse box to the PCM module itself.
Check the condition of the orange and red wires (PCM sense + 12 volts)
from the PCM module connectors back to the battery and fuse box. You
will need to remove the plastic covering on the wiring harness. Also,
check all the fuses in the engine compartment fuse box and the one
located at the passenger side of the dash. The PCM module is located in
the airbox assembly.

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bnaylor

http://www.automotiveforums.com

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JP - 09 Oct 2006 03:32 GMT

> JP Wrote:
>> I have a friend that had a bad battery so he used a charger on 200 amp
[quoted text clipped - 24 lines]
> located at the passenger side of the dash. The PCM module is located in
> the airbox assembly.

Thanks for the advice, I will check that stuff out tomorrow sometime
in the daylight. When I figure it out I'll post back. If I figure it out
lol. I just hope it isn't shorted in the dash somewhere. I hate pulling
dashes.
JP

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