Retrofitted cruise control: not working

Need technical Q/A then you're in the right place

Moderator: martauto

User avatar
TriggerFish
E30 Zone Regular
E30 Zone Regular
Posts: 508
Joined: Sat Jun 30, 2012 11:00 pm
Location: Aylesbury, Bucks

Post Sat Aug 29, 2015 7:08 pm

Hi all,

I've just finished fitting cruise control to my E30. It was from a USA car, but I've got a new RHD loom in use. All wired up correctly, except I've got a clutch bypass loom instead of the clutch switch. The actuator has a brand new cable, although I'm not 100% that, when I installed it, it's gone back together exactly right (there was a tiny spring that sprang out, and I don't think it's back where it came from).

The plug into the green block on the dash cluster is installed.

I've done the three tests in the Wiki: there appears to be a little resistance between the red/green wire and earth (hard to be precise with our multimeter). The same connection goes to 12v with brake switch input (and brake lights work). Our test bulb had failed, but a multimeter over pins 1 & 23 showed 12v.

Despite this, nothing works. Is there anything else that I can test? Is there a way to manually invoke the actuator, so I can see if it's assembled correctly?

Thanks,
Joe
bmw9818
E30 Zone Addict
E30 Zone Addict
Posts: 2561
Joined: Tue Aug 11, 2009 11:00 pm
Location: Croydon

Post Sat Aug 29, 2015 8:09 pm

got the same issue with mine, cant get it working,