C60" (P0480) Cooling Fan Relay Circuit Malfunction - Suzuki VZR1800 2007 Service Manual

5-94 FI SYSTEM DIAGNOSIS

"C60" (P0480) COOLING FAN RELAY CIRCUIT MALFUNCTION

DETECTED CONDITION
Cooling fan relay signal is not input to ECM.
ECM
FAR
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?
• 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.
YES
• 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.
4) After repairing the trouble, clear the DTC using SDS tool.
(#5-26)
Cooling fan
relay
O/R O/B
To Side-stand
switch
Cooling fan
motor
POSSIBLE CAUSE
• Cooling fan relay circuit open or short
• ECM malfunction
Side-stand
relay
1
1
ECM coupler (Harness side)
(Black)
Ignition
switch
(Gray)