Leon MK1 Cruise Control Guide - Pic Heavy

Jan 15, 2021
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hello,i have seat toledo 2002 1.8 agn ,i want to install cruise control in it but i want to know which points i will connect to the ecu,i dont have the black plug
 

chriswales6

Active Member
Mar 2, 2016
294
47
hello,i have seat toledo 2002 1.8 agn ,i want to install cruise control in it but i want to know which points i will connect to the ecu,i dont have the black plug

I think only turbo cars can have cruise control fitted. If you don't have a black plug under the windscreen I don't think your car can.

To test, hold the engine at 2,000 revs & press the brake pedal. If the revs drop you've got an electronic controlled throttle & you can fit cruise control. If the revs stay at 2,000 then you have a normal throttle and can't have cruise control.
 
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Jan 15, 2021
8
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thank you for your reply, but i saw alot of cars the same engine and model with cruise control, like this (seat toledo 2002 1.8 20v AGN)not turbo
65add0fac8154fef6f1d12294e6591aa.jpg


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chriswales6

Active Member
Mar 2, 2016
294
47
You're welcome, there's a lot of extra wiring and ECU coding that would've been done when the car was built. This needs to be there to easily fit cruise control yourself.

I'm not sure if your car has it. The first thing to check is if pressing the brake pedal makes the engine revs drop to idle even if you still got your foot on the accelerate pedal - as I said in my first message.

If it does then your ECU is at least partially setup/coded for cruise control. If not then you're going to struggle.
 
Jan 15, 2021
8
0
i will try it when i drive or when i stop the car?,but if it is works,i want to know which points in the ecu i will connect the cruise control wires t80 ecu connector?

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chriswales6

Active Member
Mar 2, 2016
294
47
ok,i will try it ,but can i check it by vcds?

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You can use VCDS to check the brake pedal switch. But that also works the lights so not much point. Cruise control also needs a switch on the clutch pedal, you can check if you have one with VCDS.
 
Jan 15, 2021
8
0
yes ,i already have it (the blue clutch switch with two wires black/blu and white/red)

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