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Fan Controls
Radiator Fan Circuit Troubleshooting
1. Check the NO.4 (20A) fuse in the under-hood
fuse/relay box, and the No. 14 (10A) fuse in the
under-dash fuse/relay box.
Is the fuse (s) OK?
YES-Go to step 2.
NO-
Replace the fuse (s) and recheck .•
2. Remove the radiator fan relay from the under-hood
fuse/relay box, and test it (see page 22-51).
Is the relay OK?
YES-Go to step 3.
NO-Replace the radiator fan relay .•
3. Measure the voltage between the No.2 terminal of
the radiator fan relay 4P socket and body ground.
RADIATOR FAN RELAY 4P SOCKET
Terminal side of female terminals
Is there battery voltage?
YES-Go to step 4.
NO-Replace the under-hood fuse/relay box .•
10-14
4. Connect the No.1 and No.2 terminals of the
radiator fan relay 4P socket with a jumper wire.
RADIATOR FAN RELAY 4P SOCKET
r
JUMPER
2
WIRE
4 3
Terminal side of female terminals
Does the radiator fan run?
YES-Go to step 5.
NO-Go to step 6.
5. Disconnect the jumper, and turn the ignition switch
ON (II). Check for voltage between the No.3
terminal of the radiator fan relay 4P socket and
body ground.
RADIATOR FAN RELAY 4P SOCKET
2
Terminal side of female terminals
Is there battery vOltage?
YES-Go to step 9.
NO-Check for an open in the wire between the
under-hood fuse/relay box and under-dash fuse/
relay box .•
•
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Table of Contents
Troubleshooting
