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Radiator Cooling Fan Control Module: Testing and Inspection








2GR-FE COOLING: COOLING FAN ECU: ON-VEHICLE INSPECTION

ON-VEHICLE INSPECTION

1. CHECK COOLING FAN ECU (w/o Trailer Towing System)






(a) Disconnect the B12 ECU connector.
(b) Measure the voltage and resistance of the wire harness side connector.
Standard voltage:






Standard resistance:





If the result is not as specified, inspect the power source system (fusible link, fuse, wire harness and relay).
(c) Connect the B12 ECU connector.
2. CHECK COOLING FAN ECU (w/ Trailer Towing System)






(a) Disconnect the B10 and B11 ECU connector.
(b) Measure the voltage and resistance of the wire harness side connector.
Standard voltage:






Standard resistance:





If the result is not as specified, inspect the power source system (fusible link, fuse, wire harness and relay).
(c) Connect the B10 and B11 ECU connector.
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