<. Try jumpering the pigtail leads from the red pressure switch at the A/C drier (key on engine off). That should give lo aux fans. If no fans, tap on the fan hubs to make sure they're not stuck. If still no, bring jumper from battery + to the two-wire side of the series resistor located behind the driver side headlight. That bypasses all of the aux fan circuit except the wiring between the resistor and the fan motors. If still no, the wire between is bad or both fan motors are bad. If that turns on the fans, you've verified that the fan motors are good, the problem is upstream in the circuit.>>

I know a guy here that writes instructions just like that...

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A Dalton