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Re: 4kq Cruise Problems (Still)
The second car that started to not work happened right after I changed the
speedo in it so I figure that the new unit is not sending the brain the
right info. As I just posted to list, I wonder how to check this. Do I
check the pins at the back of speedo. IF so, what should they read or
what range do I measure. Resistance or Voltage or Amps? I guess the
faster the little wheel spins the more speed it registers so it must be a
voltage or amperage thing??? Faster it spins more power it gives brain?
Anyhow, I suspect that is the problem on at least one of the cars.
Huw, you say there is a section in Bently that covers Cruise Control? I
cant find mutch other than a hard to understand diagram. What page. I
have the 4kq/tqc Bently.
1984 4000s quattro / modified/ awaiting Turbo Transplant.
1985 4000 quattro / Silver / Fixing it Up.
1987 4000cs quattro / Saphire Metallic Blue/ Girlfriend's
1996 A6q / Volcano / Dads Car
*****1985 5kt / PARTING OUT!
On Mon, 1 Mar 1999, Huw Powell wrote:
> > Now I'm getting frusterated. 2-running 4kq's and neither has
> > cruise. One never worked. Second just stopped. I'll forgot the one that
> > just stopped and focus on the one I have troublshot though.
> > Vacuum hoses are all fine.
> > Switches seem fine. I pulled them and jumpered them and that
> > didn't fix it. I mean the defeat switches at the Brake & Clutch.
> > Oh, and yes the stalk 6-pring plug is plugged in.
> > So, now where do I look? Any ideas???
> Bentley has a step by step test procedure that will at least check the
> functioning of everything but the control unit, as I remember there is
> one error, which I will document on my web site someday soon. Has to do
> with the brake light part of the circuit.
> Measure the resistance of the switches when closed, they can get pretty
> bad, though I guess jumping them is a round about way of making sure
> they weren't the problem.
> clean the stalk switch. make sure the speedo head pickup is plugged in.
> Huw Powell
> 82 Audi Coupe; 85 Coupe GT