OBC retrofit, ignition switch = cruise control doesn't work

[tmc]

Going back to tmc's problem, have you checked that the brake lights work (as suggested by Tool Pants)?

The brake light is fine.

Also, the cruise will not engage if the clutch cruise switch is operated. If it is secured the same way as the brake switch, then it can slip in the mounting bracket and cause the switch not to operate.

Ok, that might be it... what am I looking for?

Another thought - and this is a long shot - are we sure your car is not eGas? I suppose if it was a very late build in 1999 it might be DME7.2 and we are all barking up the wrong tree. Check your option sticker for (M)620 - if it has then you have egas, and there is no mechanical actuator.

Not egas / no option 620.

Thanks

tmc

[Richard Hamilton]

There are two switches on the clutch pedal. One is the start inhibit switch, which must be working otherwise the car wouldn't start. The other is the cruise switch.

In the picture the two switches look different (16 & 17), but I don't know which is which. You need to check that they both work when the pedal is depressed.

It would also be worth checking that you are getting 12v +ve to the stalk - the black wire going to pin 2 of the 4-way plug.