Test S: The Auxiliary Blower Motor Does Not Operate Correctly Using the Front Auxiliary Climate Controls

PINPOINT TEST S: THE AUXILIARY BLOWER MOTOR DOES NOT OPERATE CORRECTLY USING THE FRONT AUXILIARY CLIMATE CONTROLS

S1-S2:

S3-S4:

S5:

Normal Operation
Under normal operation, the blower motor is provided a ground from the resistor through circuit CHA08 (GN/OG). The resistor gets a ground from the front auxiliary blower switch, depending on selected speed, through circuit CHA06 (YE/VT), CHA07 (BU/GY) or circuit CHA16 (BU).

Possible Causes
- An open, short to ground or together in circuits CHA08 (GN/OG), CHA06 (YE/VT), CHA07 (BU/GY) or CHA16 (BU)
- Auxiliary blower motor resistor
- Front auxiliary climate control assembly