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Cruise control


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I've been thinking of sticking cruise control in my 300 tdi disco for a while now.

I've just come across most of the kit for cruise control on a '93 rangie...

I like a good challenge, so I'm up for trying to make this fit, but what sends the ECU a speed signal? Is it taken from the ABS, or something on the speedo cable?

Should there be some sort of valve system to send variable amounts of vacuum to the diaphragm actuator thingy???

Anyone got any wiring diagrams/technical details for this system?

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I've been thinking of sticking cruise control in my 300 tdi disco for a while now.

I've just come across most of the kit for cruise control on a '93 rangie...

I like a good challenge, so I'm up for trying to make this fit, but what sends the ECU a speed signal? Is it taken from the ABS, or something on the speedo cable?

Should there be some sort of valve system to send variable amounts of vacuum to the diaphragm actuator thingy???

Anyone got any wiring diagrams/technical details for this system?

It uses the signal from the speed transducer in the transfer box (the one that drives the speedo). No idea if it's the same as the one in a 300Tdi disco.

It wouldn't be my first choice - the one on my '93 rangie worked intermittently when I first had it and now doesn't work at all (despite passing the workshop diagnostics - so it's probably a dodgy ECU). I've seen quite a few questions about similar problems on forums.

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