87 5kcst electrical/climate control help needed !!!!!!!!!!

[john at westcoastgarage.net]

Unless you can find about 8 terminals on that 3 pin transistor, it ain't it. 
The wiring diagram (which is at work, so I can't reference it directly) 
shows the unit to be different than what you describe.  Besides, the 
function of the VS is to supply controlled voltage to the temp and fuel 
level gauges.  It has nothing to do with lighting.  John
----- Original Message ----- 
From: "Al Streicher" <streichea001 at hawaii.rr.com>
To: "Al Streicher" <streichea001 at hawaii.rr.com>; "Leon" 
<proleonk at gmail.com>; <john at westcoastgarage.net>; <quattro at audifans.com>
Sent: Saturday, November 17, 2007 6:06 PM
Subject: RE: 87 5kcst electrical/climate control help needed !!!!!!!!!!


> Instrument panel regulator or voltage stbilizer P/N is 171-919-803
>
> Al
>
> -----Original Message-----
> From: quattro-bounces at audifans.com
> [mailto:quattro-bounces at audifans.com]On Behalf Of Al Streicher
> Sent: Saturday, November 17, 2007 3:56 PM
> To: Leon; john at westcoastgarage.net; quattro at audifans.com
> Subject: RE: 87 5kcst electrical/climate control help needed !!!!!!!!!!
>
>
> Instrument light booster, could be the "voltage stabilizer" on the circuit
> card for the instrument panel. It looks like a ceramic square with a metal
> tab out of the top with a screw through it into the panel. There are three
> legs coming out of the bottom of the ceramic square. Leg 1 is to the 
> right,
> two is center(ground) and three is left. Measure voltage between 1-2, 
> switch
> on ignition, must read battery voltage.
> If not, connect voltmeter between 2-3, should read between 9.5-10.5V. If 
> not
> replace.
>
> Al
> Mililani, HI
>
> -----Original Message-----
> From: quattro-bounces at audifans.com
> [mailto:quattro-bounces at audifans.com]On Behalf Of Leon
> Sent: Saturday, November 17, 2007 12:05 PM
> To: john at westcoastgarage.net; quattro at audifans.com
> Subject: Re: 87 5kcst electrical/climate control help needed !!!!!!!!!!
>
>
> Do the license plate lights work? Its all on the same fused circuit. I
> assume you already checked that, but you may have missed it. Make sure
> that all other lights in and outside the car work, as some of them are
> connected.
> I never heard of a instrument light booster, just had a look in ETKA
> and couldn't really find anything. I have no clue how it looks like
> etc, or how it would work?! How is the voltage regulator? did that
> check out?
> You might be looking at the hard to trace intermittent connections or
> bad grounds.
>
> Good luck
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