Radiator Cooling Fan High Speed Control System Check
Radiator Cooling Fan High Speed Control System CheckWiring Diagram
Wiring Diagram:
Troubleshooting
WARNING: Keep hands, tools, and clothing away from radiator cooling fan to help prevent personal injury. This fan is electric and can come on whether or not the engine is running. The fan can start automatically in response to the ECT sensor with the ignition switch at the "ON" position.
NOTE:
^ Before performed troubleshooting, be sure to read the Precautions of ECM Circuit Inspection.
^ When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the special tool to ECM and/or the ECM connectors referring to Inspection of ECM and Its Circuits.
