TEST
ACTION
APPLICABILITY
24
Turn the ignition off.
Disconnect the Radiator Fan Relay No. 3 harness connector.
Disconnect the Radiator Fan No. 1 harness connector.
Using a 12-volt test light connected to 12-volts, check the Radiator Fan No. 1 Control
circuit.
Did the test light illuminate brightly?
All
Yes
→ Repair the Radiator Fan No. 1 Control circuit for a short to
ground.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 25
25
If there are no possible causes remaining, view repair.
All
Repair
Replace the Radiator Fan No.2.
Perform ROAD TEST VERIFICATION - VER-2.
26
Turn the ignition off.
Disconnect the Radiator Fan Relay No. 3 harness connector.
Disconnect the Radiator Fan No. 1 harness connector.
Measure the voltage on the Radiator Fan No. 1 Control circuit.
Is the voltage above 1.0 volt?
All
Yes
→ Repair the Radiator Fan No. 1 Control circuit for a short to
voltage.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 27
27
If there are no possible causes remaining, view repair.
All
Repair
Replace Radiator Fan No.1.
Perform ROAD TEST VERIFICATION - VER-2.
219
DRIVEABILITY - DIESEL
*CHECKING THE ELECTRIC RADIATOR FAN OPERATION —
Continued