5-94 FI SYSTEM DIAGNOSIS
“C60” (P0480) COOLING FAN RELAY CIRCUIT MALFUNCTION
INSPECTION
Step 1
1) Turn the ignition switch OFF.
2) Remove the right frame side cover. (#9-5)
3) Check the cooling fan relay coupler for loose or poor contacts.
If OK, then inspection the cooling fan relay. (#8-8)
Is the cooling fan relay OK?
4) After repairing the trouble, clear the DTC using SDS tool.
(#5-26)
DETECTED CONDITION POSSIBLE CAUSE
Cooling fan relay signal is not input to ECM. • Cooling fan relay circuit open or short
• ECM malfunction
ECM
Side-stand
relay
Ignition
switch
FAR
O/R
O/B
Cooling fan
motor
Cooling fan
relay
To Side-stand
switch
1
YES
• O/B and O/R wire open or shorted to ground, or
poor c connection
• If wire and connection are OK, intermittent trou-
ble or faulty ECM.
• Recheck each terminal and wire harness for
open circuit and poor connection.
• Replace the ECM with a known good one, and
inspect it again.
NO Replace the cooling fan relay with a new one.
ECM coupler (Harness side)
1
(Black) (Gray)
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