Test P: The Blower Motor Is Inoperative - EATC

PINPOINT TEST P: THE BLOWER MOTOR IS INOPERATIVE - EATC

P1-P3:

P3-P5:

P6-P8:

P8-P11:

P11-P13:

Normal Operation
Under normal operation, the blower motor relay coil receives a ground through circuit GD120 (BK/GN). The coil receives voltage from the EATC module through circuit CH123 (VT/GN) when the EATC is ON. Voltage is supplied to the relay contacts from circuit SBB16 (VT/RD). When the relay coil is energized, voltage is delivered to the blower motor through circuit CH402 (YE/GN). Ground for the motor is provided through circuit VH301 (YE/BU) from the blower control module. Ground for the blower control module is provided by circuit GD140 (BK/GN).

Possible Causes
- Fuse(s)
- An open in circuit GD120 (BK/GN), GD140 (BK/GN), CH123 (VT/GN), CH402 (YE/GN), VH301 (YE/BU) or circuit SBB16 (VT/RD)
- A short to ground in circuit CH123 (VT/GN)
- A short to voltage in circuit CH123 (VT/GN) or VH301 (YE/BU)
- Blower motor control module
- EATC module
- Blower motor relay
- Blower motor