RE: Diacom reports 23 battery volts?

["Jim Sloan" <leroy@sunflower.com>]

> 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.

Thanks for the reply, but what would the voltage at the aldl tell me? 

Jim Sloan
leroy@sunflower.com

> -----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?
> 
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