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Fan Controls
Radiator and Condenser Fan Circuit
Troubleshooting C
NOTE: Refer to the symptom troubleshooting index
before troubleshooting.
1. Remove the condenser fan relay, and test it (see
page 22-88).
Is the relay OK ?
YES
Go to step 2.
NO
Replace the relay.
2. Disconnect radiator fan switch B 2P connector and
turn the ignition switch ON (II).
Does the radiator f an stop?
YES
Replace radiator fan switch B and recheck.
NO
Go to step 3.
3. Turn the ignition switch OFF.
4. Remove the radiator fan relay from the under-hood
fuse/relay box.
5. Check for continuity between radiator fan switch B
2P connector terminal No. 1 and body ground.
RADIATOR FAN MOTOR 2P CONNECTOR
Wire side of female terminals
Is there continuity?
YES
Repair a short in the wire between radiator
fan relay 4P socket terminal No. 3, radiator fan
switch B 2P connector terminal No. 1 and A/C
pressure switch.
NO
Go to step 6.
6. Disconnect the radiator fan switch A 2P connector
and turn the ignition switch ON (II).
Does the radiator f an stop?
YES
Replace radiator fan switch A.
NO
Repair a short in the wire between radiator
fan relay 4P socket terminal No. 3, condenser fan
relay 4P socket terminal No. 3.
10-24
10-24
BLU/BLK
Radiator and Condenser Fan High
Speed Circuit Troubleshooting
NOTE: Refer to the symptom troubleshooting index
before troubleshooting.
1. Remove the radiator fan relay and condenser fan
relay from the under-hood fuse/relay box.
2. Disconnect the radiator fan switch B 2P connector.
3. Turn the ignition switch ON (II).
4. Measure the voltage between radiator fan switch B
2P connector terminal No. 1 and body ground.
RADIATOR FAN SWITCH B 2P CONNECTOR
Wire side of female terminals
Is there the battery voltage?
YES
Go to step 5.
NO
Repair an open in the wire between fan
control relay 5P socket terminal No. 3 and radiator
fan switch B terminal No. 1.
5. Install the radiator fan relay and condenser fan
relay.
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