I recently had the a/c refilled, but apart from activating the radiator fan AFTER the refill, the clutch on the compressor is not engaging.
So the fan wasn't working either before the refill.
So now I want to think cheap and hope it's the relay R3.
Since it is a climate control I expect the A/C computer to "tell" the relay when to engage.
I took the relay out and do measure over 12V (running engine) in the relay box. I don't know if this should be an interrupted 12V or a constant one
Then I also had the idea to measure the resistance between the pins of the relay/
When I connect the two big pins I measure no resistance so they must be connected.
When I connect the two small pins I measure 0.13 (with the range of my multimeter on 20K Ohm, it doesn't go lower)
But I can't conlude by this if the relay has died, maybe someone else does.
In Dutch we have the expression "meten is weten (to measure is to know)" but I still know nothing
I did the self test on the climate control and returns the code 88 (no faults)
Edited by Knientje, 03 August 2013 - 03:16 PM.