Webinar 305 - Pit Speed Limits

You appear to be sending the switch inputs to the ECU by CAN. I'm trying to do the same thing, but the electronics might not allow what I want.

I have a momentary switch at the steering wheel that is wired to a C187, and thence to the ECU (M170) by CAN. Obviously a latching switch would be best, but it's a little late to make that modification. Is is possible for the ECU or display to electronically "latch" the Pit Speed Limit, i.e., initial press turns on the Pit Limit and subsequent press turns it off?

Thanks,

Julian Allen

We do the "latching logic" in the C187. Here's how:

Create a user condition for "Pit Switch Latched" (rename a GP OFF/ON channel). Make the condition "Activate - Deactivate".

Activate condition:

Pit Switch Latched is False (for .2 sec) and ButtonInput True

Deactivate condition:

Pit Switch Latched is True (for .5 sec) and ButtonInput True

Be sure to send Pit Switched Latched to the M1 and configure the Driver Switch / Pit Switch appropriately.