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Jeep Cherokee’88 Engine Cooling Fan Circuit and Wiring Diagram

Wednesday, 24. June 2009 by Arya
The 1988 Jeep Cherokee, Comanche, and Wagoneer 4.0L engine series use an auxiliary fan. The auxiliary fan is controlled by a relay mounted on the left inner fender panel. When the A/C (if equipped) is turned on, the Electronic Control Unit (ECU) grounds the A/C relay coil allowing current to flow through it. This activates the A/C relay which then supplies current to the A/C clutch, fan diode assembly and cooling fan relay. Find more information about 1988 Jeep Cherokee Engine Cooling Fan Circuit and Wiring Diagram here Read more [...]