Re: Diacom reports 23 battery volts?

["Bruce Plecan" <nacelp@bright.net>]

Also, seen shorted diodes put enough a/c into system to do screwy things
Bruce


> Measure the voltage at the ALDL with the car running. I've seen this
problem
> when
> two fusible links are improperly repaired...but voltage regulation could
be
> toast, too.
> Lyndon.
> -----Original Message-----
> From: Jim Sloan <leroy@sunflower.com>
> To: gmecm@diy-efi.org <gmecm@diy-efi.org>
> Date: August 29, 2000 10:55 AM
> Subject: Diacom reports 23 battery volts?
>
>
> >My dad called and said his car wasn't running right and the check engine
> >light was on. It is a 91 Cutlass Ciera with a 3.3L.  I hooked up Diacom
and
> >checked the trouble codes. The current code listed high battery voltage.
> >History showed high battery voltage, tps sensor out of range and esc
> >malfunction. I started the car and Diacom showed around 23 volts! Voltage
> at
> >the alternator was 14.5. I checked the inputs at the ecm and didn't find
> >anything over 13.  I think his ecm is toast.  Anyone else had a similar
> >problem?
> >
> >The ecm number is 16159274. Memcal AXAT9713. I can post it to incoming if
> >anyone can help me identify the eprom.  I think it's a 27C256.
> >
> >TIA,
> >
> >Jim Sloan
> >leroy@sunflower.com
> >
> >
>
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