SymbolsDTC “c60” (p0480): cooling fan relay
circuit malfunction
Detected condition and possible cause
Detected condition
Possible cause
Cooling fan relay signal is not input to ecm.
Cooling fan relay circuit open or short.
Ecm malfunction.
Wiring diagram
Troubleshooting
Caution
when using ...
Voltage check
If voltage is supplied to the circuit being checked, voltage
check can be used as circuit check.
With all connectors/couplers connected and voltage
applied to the circuit being checked, measure
voltage between each terminal and body ground.
If measurements were taken as shown ...
Water hose inspection
Inspect the water hoses in the following procedures:
remove the side cowlings. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Check the water hoses for crack, damage or engine
coolant leakage. If any defect is found, replace the
water hose wi ...