Golf&GM

iTrader: (22)

Ok, I bought this A4 '99 Trans Am a little while back and the cruise has not worked since I bought it. I've searched on here found a few things to check but nothing has fixed it yet.

So far I've checked the fuses (A/C rely is working) and I've checked the brake switch to make sure it is flush against the brake pedal with my foot off the brake. Still nothing.

I'm not quite sure what the next step should be. I have HPtuners so if there's a switch in there I can look at to see if it's enabling that would be helpful. I'm kind of stuck right now with this problem, any suggestions would be appreciated.

Chrismikeb

iTrader: (2)

i think i got it...put ur foot on the gas and dooont move it..push slightly harder for goin uphill, little bit less goin down
lol sorry i never gave a damn bout cruise, id give u mine if **** was that easy

Golf&GM

iTrader: (22)

Thanks for the bump, I drive 40 minutes interstate one way to work and see a min of three cops everyday. Cruise would help a bunch.

No one has any ideas?

Golf&GM

iTrader: (22)

Pulled the codes, no SES light but this did come up:

[Brake] U1000 - Class 2 Communication Malfunction (History)

Not sure if this might have anything to do with it?

98PurpleT/A

iTrader: (16)

Not knocking you and not being a smart *** but check the cable to make sure it didn't pop off.

I had it happen today

As for the U1000 code it is a generic code I believe, just clear it. If it is in history it shouldn't have an affect on cruise control function as far as I know.

Golf&GM

iTrader: (22)

That was one of the first things I checked. All the cables are connected and that's good to know about the U1000.

I'm thinking that it's either the switch on my steering column or the cruise disengage switch on the brake. I'm a novice at anything wiring, does anyone know how I can check these to see if they still work?

98PurpleT/A

iTrader: (16)

Which cruise control do you have. I have the simpler one that gose straight to the TB. Some have the one that goes to a module near the battery and then to the TB.

Do you have your own scanner?


I have a Tech2 and with it you are able to see if the brake light switch is activated. If you have a scanner it may have that info in one of the data displays.

If the brakes light switch still activates the brake light on and off perfectly I don't think the problem is gonna be n that circuit.

Maybe someone who has access to alldata can post a wiring diagram for the cruise control circuit???

Jwright41

iTrader: (2)

I was just about to ask this question for mine has died too. I have an 02 SS and was wondering the same thing.

98PurpleT/A

iTrader: (16)

Updates???

eseibel67

iTrader: (10)

Wiring diagram