Re: 89 100 Wagon charging system woes :-(

[mlarosa@BayNetworks.com (Mike LaRosa)]

At 09:38 PM 8/19/97, Tony Lum wrote...
>Mike,
>
>I'd recheck the ground leads from the battery to chassis and from engine to
>chassis.  On all braided straps, give 'em a tug to make sure they're not
>corroded inside the crimp terminals.  Also this note from Mr. Bentley on
>troubleshooting alternators:  If complaint "battery not being charged" is
>received although warning light function is correct, check exciter circuit
>as follows:
>

I believe I discounted the above scenario by ......

>>
>>Multimeter shows 14.0 volts at Jump Start post under the hood
>>grounded to the Intake Manifold, Strut Bolt or Ground of 
>>Battery post.  Yes I ran a wire all the way back to the Battery
>>ground just to be sure.
>>
>>Multimeter shows 12.66 at Battery positive post when grounded to
>>the Intake Manifold, Strut Bolt or Ground of Battery post. 
>>

>1. Disconnect battery ground strap.
>2. Disconnect blue wire (D+/61) from warning light in engine compartment.

Where abouts is this wire ?  I unfortunately do not have a bentley for the
100.  (Got one for the V8 though)

>3. Connect ohmmeter between blue wire of warning light and battery plus
>terminal.
>4. Turn ignition on and read ohmmeter-should be 140-160 ohms.
>5. If infinite ohms, reverse probes and re-measure.
>
>HTH,
>
>Tony
>
>******************************************************
>Tony Lum
>Fremont, California U.S.A
>
>Audi Owner/Operator/Mechanic by Necessity ;-)
>
>1987 5000S Turbo Quattro
>1985 4000CS Quattro
>1980 5000S Sedan
>******************************************************
>


Thanks,

Mike L.
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