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Home >> Suzuki >> 2001 >> XL-7 Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Engine General Information & Diagnosis) >> H27 Engine >> Diagnostic Information & Procedures >> A/C Signal Circuit Check >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2004 Suzuki XL-7 and 2004 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.

HVAC control module outputs A/C ON request signal to ECM when A/C switch turned ON and heater blower motor switch turned ON.

Then A/C condenser fan motor low speed relay and compressor are turned ON by ECM when engine condition are as specified.

If A/C condenser fan control switch (in refrigerant pressure switch) is turned OFF with A/C ON (A/C compressor in operation), A/C condenser fan motor high speed relays are turned ON by ECM.

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