Can we do this? (aka The DIY Cruise Control Thread)

[stvee]

We are talking about the connector furthest left of that picture, right? I ordered two spiral connector repair terminals and one ecm repair terminal. The connector in the ecm repair terminal looked like a perfect fit for the ones in the steering column. Should I go for two more of those or do I have the wrong connector?

[CTScott]

Originally Posted by stvee

We are talking about the connector furthest left of that picture, right? I ordered two spiral connector repair terminals and one ecm repair terminal. The connector in the ecm repair terminal looked like a perfect fit for the ones in the steering column. Should I go for two more of those or do I have the wrong connector?

Yes - Left most connector. The pins are slightly different for the ECM and the spiral cable connector. The part numbers are listed in this thread:

http://www.yarisworld.com/forums/sho...ght=diy+cruise

[yarismadness]

Guys,

I had I idea, and i need your opinion before trying it.

The yellow wire on the clutch switch that blocks the start (i am talking about the one on the bottom, not the additional we should add to stop the cruise), has normally (when released) 12V, high impedance (my guess is a pull up resistor inside the ECU). when pressed (the clutch needs to go to the bottom), that line goes near 0V (pulled down by the starter relay coil).

What if we sense that in order to stop the cruise? For example, a mosfet transistor will do the job perfectly.

The problem: the cruise will disable ONLY if the clutch is COMPLETELY pressed. What will happen during the clutch travel?
Cheers!

[CtrlAltDefeat]

Originally Posted by yarismadness

Guys,

I had I idea, and i need your opinion before trying it.

The yellow wire on the clutch switch that blocks the start (i am talking about the one on the bottom, not the additional we should add to stop the cruise), has normally (when released) 12V, high impedance (my guess is a pull up resistor inside the ECU). when pressed (the clutch needs to go to the bottom), that line goes near 0V (pulled down by the starter relay coil).

What if we sense that in order to stop the cruise? For example, a mosfet transistor will do the job perfectly.

The problem: the cruise will disable ONLY if the clutch is COMPLETELY pressed. What will happen during the clutch travel?
Cheers!

I'm not an expert but I'm pretty sure the engine will rev up. disengaging the clutch will slow the car, which the ecu will see and will give it more gas to try to maintain speed. most of the time you do not floor the clutch (which would be required for this to disengage the cruise). I personally would not like this solution...