Blower Motor Controller Inspection

WARNING: This page is about a different car, the 2004 Suzuki Aerio. However, it is still accessible from the selected car via links, so may be relevant.

Check blower motor controller voltage as follows:

Turn ignition switch to ON position.
With blower motor controller connector connected, change blower speed selector OFF to MAX and measure voltage between "b" terminal of blower motor controller connector and body ground at the same time.

Fig 1: Blower Motor Controller Voltage Specification

Courtesy of SUZUKI OF AMERICA CORP.

Fig 2: Checking Blower Motor Controller Voltage

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Check blower motor controller resistance as follows:

Disconnect blower motor controller connector.
Measure resistance between "c" and "d" terminals of blower motor controller.
If check result is not satisfactory, replace blower motor controller.

Blower motor controller resistance

"c" - "d": approximately 1.5 k/ohms.

Fig 3: Checking Blower Motor Controller Resistance

Courtesy of SUZUKI OF AMERICA CORP.