Some of these gremlins are well buried
Next on the list was the intermittent wipe.
I removed the stalk and the rheostat is giving the correct values, 5, 500 and 1000 ohms. Not what I was expecting to find.
It's fortunate that I have another car to compare to, so next I put Tech 2 on it and two very strange things.
A, First of all DICE is permanently seeing 1000 ohms (it says wiper interval is 15 seconds, so maybe that is just default)
B,.Secondly, when I try to activate the front wiper through Tech 2 it doesn't work.
From reading WIS it seems that DICE is not providing a voltage to trigger the wiper relay, that would explain B, but then it would need another fault to explain why the wiper interval is 15 seconds. Maybe if resistance is over ~ 700 ohms it defaults to the 15 second value and an open circuit would do that.
So it's either two wiring issues of a faulty DICE on just the intermittent wipe. Does that make sense, do DICE modules fail frequently. I have just seen that the module is above the main relay board
To confuse matters further if I move the intermittent delay switch upwards (longer delay) I get one wipe, downwards I get none. That doesn't happen on a normal car.
Stalks have been swapped, relays swapped , just to be sure, behaviour remains the same
Any suggestions ?