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Blower Motor Controller Inspection

Check blower motor controller voltage as follows:

  1. Turn ignition switch to ON position.
  2. With blower motor controller connector connected, turn blower speed selector from OFF to MAX position while measuring voltage between "b" terminal of blower motor controller connector and body ground.

    Blower motor controller voltage specification 

    BLOWER MOTOR CONTROLLER VOLTAGE SPECIFICATION

    Blower speed selector position Voltage
    OFF  0 V 
    MAX  approximately 8.0 V 
    Fig 1: Checking Blower Motor Controller Voltage
    G04015565Courtesy of SUZUKI OF AMERICA CORP.

    Check blower motor controller resistance as follows:

  3. Disconnect blower motor controller connector.
  4. Measure resistance between "c" and "d" terminals of blower motor controller.

If measured resistance is incorrect, replace blower motor controller.

Blower motor controller resistance 

"c" - "d": approximately 1.5 kohm 

Fig 2: Measuring Resistance Between "C" And "D" Terminals Of Blower Motor Controller
G04015566Courtesy of SUZUKI OF AMERICA CORP.