A/C Condenser Fan Motor Relay Low Speed Control

A/C Condenser Fan Motor Relay Low Speed Control System Check

Wiring Diagram:

Wiring Diagram

Circuit Description
A/C Condenser fan motor low speed relay is turned ON by ECM when A/C signal inputted to ECM and engine conditions are as specified.
When A/C condenser fan control switch (in refrigerant pressure switch) OFF signal inputted to ECM with A/C ON (A/C compressor in operation), A/C Condenser fan motor high speed relays are turned ON by ECM.

Step 1 - 4:

Step 5 - 6:

Troubleshooting

WARNING: Keep hands, tools, and clothing away from A/C condenser 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 in the "ON" position.