There should be a live on one of the black/yellow wires at the triple pressure switch.

The only component between the a/con switch and the triple pressure switch is the evaporator temp. switch. Power comes into the evap. temp. switch on a black/white wire and, assuming there is no problem with it's operation, comes out on the black/yellow wire and then feeds the triple pressure switch.

I have replaced evap. switches before, not the easiest job.

Regards, Ian.

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Experience is something you don't get until just after you need it!

Measured clutch at 4 ohms.

Having trouble tracing the short.

Is there any chance from what you've seen at the evaporator sensor that it could possibly short around that area.

Cheers Iain

I don't think it's possible for the wiring to short near the evap. switch as the wiring is running through plastic conduit to the evap. area and then it can only really touch the plastic housing of the heater (but you never know ).

Regards, Ian. 

_______________________________________________________________

Experience is something you don't get until just after you need it!

Thanks for letting us know but that is the evap. temperature switch that I described in my earlier post.

Regards, Ian.

_______________________________________________________________

Experience is something you don't get until just after you need it!