Condenser Fan Does Not Operate

Normal Operation Of Condenser Fan
The ECM controls the operation of the condenser fan and magnetic clutch, depending on engine load. The condenser fan is supplied with battery positive voltage as follows:
1. The A/C and fan switches are turned on.
2. The ECM receives a signal that the A/C and tan switches are on and creates a ground circuit.
3. The condenser fan relay is magnetized and the contact is closed.
4. Battery positive voltage is applied to the condenser fan and the fan operates.


Step 1
1. Run the engine at idle.
2. Turn the A/C and fan switches on.








3. Measure the voltage at terminal A of the condenser fan connector.


Step 2
1. Turn the ignition switch to LOCK.
2. Disconnect the condenser fan connector.








3. Check for continuity between terminal B of the condenser fan connector and ground.


Step 3
1. Verify that the ignition, fan and A/C switches are on.








2. Measure the voltage at the terminals of the condenser fan relay.