Question about 1998 Volkswagen Cabrio

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The cruise control went intermittant, then quit completely.

I bought the car about 3 months ago, finding the cruise would suddenly shut off or not even connect unless I kept turning it off, then on and set, finally one day it set, went about a mile on, shut off and hasn't worked since. Is there a wire broken, a sensor malfunctioning, or a switch broken, or what?

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  • dvbenner Apr 15, 2009

    I have the same problem with my 1995 Cabriolet. Replaced the turn sig./Cruse switch with a new one (from the dealer $180.00) and still not working. Checked for vacume leakes with a hand pump and the system holds a vacume. Is there a control module someplace?



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Where is the switch for your cruise control? Is it mounted on the turn signal stalk? If so, it's likely a failure of the stalk. The Audi cars of your generation are known for stalk failures (my 99 A4 has had it twice), and it's likely that VW and Audi share switchgear as they're both part of the same conglomerate parent company. If your switch is on the stalk, you're likely going to have to change it out for a new one. I'd recommend German AutoParts in Albany, NY for buying one ( - I've bought several parts from them in the past and they're top-notch for service and pricing.

Posted on Sep 25, 2008

  • J Francis Dec 22, 2010

    I had a problem on my '98 A6 where the cruise control would work for about 5-10 minutes then stop. The dealer tried to tell me it was a diaphragm that would not hold the vacuum. They replaced it ($350) and it still did not work. I took the car home and followed this post at Audi World and it now works great! The dealer wanted $664 to replace the module which is about a 10 minute job to get to behind the glove box (only 5 screws to take out!) If you are the least bit mechanical and have a solder gun, do it yourself and save $600!



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2005 trailblazer cruise control not working or the cruise control light not working

Which engine does your trailblazer have 5.3 or 4.2 L
Cruise Control Description and Operation (5.3L)
Cruise Control Description and Operation (4.2L)
makes a difference ! The best way to start diagnostic's is with a scan tool . May have DTC'S diagnostic trouble codes .
DTC P1574 Stop Lamp Switch Circuit
DTC P0568 Cruise Control Set Switch Circuit
DTC P0567 Cruise Control Resume Switch Circuit
Plus with a scan tool you can see if the cruise control switch is inputing to PCM. Data list .
The cruise control resume/accel switch is an input to the powertrain control module (PCM). The PCM uses the cruise control resume/accel switch signal circuit in order to detect when the driver has requested to accelerate the set vehicle speed or to resume the cruise control system. The PCM detects a voltage signal on the cruise control resume/accel switch signal circuit when the switch is applied. This DTC sets if the PCM senses voltage on the cruise control resume/accel switch signal circuit for longer than 90 seconds.
Cruise Control Indicator Inoperative (4.2L)
Turn OFF the ignition.
Install a scan tool.
Turn ON the ignition, with the engine OFF.
With the scan tool, Command the Cruise Control Lamp Test parameter ON, in the instrument panel cluster (IPC) Output Controls.
Does the Cruise indicator illuminate in the IPC?
YES - Go to Step 3
no - Go to Step 4
Inspect for poor connections at the harness connector of the powertrain control module (PCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
YES - Go to Step 7
NO - Go to Step 6
Inspect for poor connections at the harness connector of the IPC. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
YES - Go to Step 7
NO - Go to Step 5
Replace the IPC. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
YES - Go to Step 7
Replace the PCM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
Go to Step 7
Operate the system in order to verify the repair.
Does the system operate properly?
System OK
Go to Step 2

Cruise Control Inoperative/Malfunctioning (4.2L)

Install a scan tool.
Turn ON the ignition, with the engine OFF.
Press the cruise ON/OFF switch OFF.
With the scan tool, observe the Cruise ON/OFF switch parameter in the powertrain control module (PCM) Cruise Control Data list.
Does the Cruise ON/OFF switch parameter display OFF?

Your best bet mite be to take your vehicle to the dealer .

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I have a 1998 GMC Safari van in which the cruise control has quit. It didn't go all at once. It would work intermittently. Sometimes going 5 miles or so and then shutting off and then after another few miles, it would set again. This sounds to me like something getting hot. Is there a circuit breaker for the cruise control...or?
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