Mopar 4809171AE Module-Radiator Cooling

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Always check for blown fuses before attempting to diagnose a faulty electrical circuit. If the engine is overheating and the cooling fan is not operating, unplug the electrical connector at the motor and use fused jumper wires to connect the fan motor directly to the battery. If the fan still doesn't work, replace the assembly. Test each motor separately. If the motors are OK, but the cooling fan doesn't come on when the engine gets hot, the fault may be in the coolant temperature sensor, the fan relay, the Powertrain Control Module (PCM), or the wiring that connects the components. Carefully check all wiring and connections. If no obvious problems are found, further diagnosis should be done by a dealer service department or a qualified repair shop. To replace the cooling fan assembly, disconnect the cable from the negative battery terminal and then disconnect the cooling fan electrical connector(s). Remove the radiator support and the cooling fan assembly top fastener(s). Remove the cooling fan assembly by pulling it straight up and out of the engine compartment. Installation is the reverse of removal, ensuring that the fan assembly is placed back into the retaining clips for the side and bottom.

Unplug the electrical connector at the motor and use fused jumper wires to connect the fan directly to the battery. If the fan still doesn't work, replace the motor.

Always check for blown fuses.