CC head diagnostic only shows 12.0 volts

Ed Kellock ed.kellock at gmail.com
Thu Nov 1 20:11:51 PDT 2012


I agree with your point, to a point... I wouldn't be quite as fixated on
this if it hadn't just occurrred.  And the fact that the reading is static
at 12.0.  I know and have known for some time that the reading won't be
accurate and correct, but it has always been relevant, i.e. a useful
indicator of system status, readily available, without stopping or getting
out of the car.
 
 
Ed
 
-----Original Message-----
From: PeterBergin at aol.com [mailto:PeterBergin at aol.com] 
Sent: Thursday, November 01, 2012 7:04 PM
To: ed.kellock at gmail.com; 200q20v at audifans.com
Subject: Re: CC head diagnostic only shows 12.0 volts


My old Avant was always 13.5-13.8 at the jump post and similar at the
battery post (eliminate the possibility of a splice problem).  The AC head
channel 11 was always ~11.8-12.5 and fluctuated allot depending on the load
ware as the dash gauge was more constant.  Never changed much over 10 years
and 240k miles.  Several brush/reg packs replaced and a re-man Bosch alt.  I
would not worry about it.  My old 5000 was the same.
 
Save your worries for the bigger $$ stuff!
Pete
91 Avant sold to Drew and brought back to life!
02 S6  Great car same game!
 
In a message dated 11/1/2012 12:07:23 P.M. Central Daylight Time,
ed.kellock at gmail.com writes:

And I have 13.6 at the jump start post and the dash gauge reflects that as
well.

91 200q20v Avant with 248k.
Threw the alt belt two days ago.
I punched up the volt reading on the cc head and it was still over 13 volts
when I got home and shut it down.
I installed a new belt yesterday and the IC gauge is fine, but channel 11
only shows 12.0 and it doesn't change.
I googled for an hour last night and couldn't find any info.  I know I've
seen it mentioned in the past at some point.
I'm going to dive into the manuals now.
Just a quick post in case anyone's got a quick answer.

Thanks!
Ed


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