You have probably got it fixed by now? You have probably got a multi meter and??
Disconnect the batteries.
undo the two leads by the intake manifold.
The two (on the engine side) leads should measure some resistance ( Ohms) Scale on the multi meter. I think that it draws 220 amps so that divided by 12 Volts will tell you what the resistance will be (0.05454 ohms) I have never measured mine.
Then just trace each lead back to the ( relay block), ( this is probably what is at fault??) The relay is mounted on the drivers side just back of the battery and down from it. Or a wire has been broken off?
They have 2 fuseable links this also is very suspect?
