Test P

PINPOINT TEST P: THE BLOWER MOTOR IS INOPERATIVE - DATC

Test P1-P2:

Test P3-P5:

Test P5-P7:

Test P8-P10:

Test P11-P13:

Normal Operation
Under normal operation, the blower motor relay coil receives a ground through circuit 1205 (BK). The coil receives voltage from the DATC module through circuit 575 (YE/BK) when the DATC is ON. Voltage is supplied to the relay contacts from circuit 538 (GY/RD). When the relay coil is energized, voltage is delivered to the blower motor through circuit 371 (PK/WH). Ground for the motor is provided through circuit 536 (BK/LG) from the blower control module. Ground for the blower control module is provided by circuit 1205 (BK).

Possible Causes
- An open in circuit 1205 (BK), 575 (YE/BK), 371 (PK/WH), 536 (BK/LG) or circuit 538 (GY/RD).
- A short to ground in circuit 575 (YE/BK).
- A short to voltage in circuit 575 (YE/BK) or 536 (BK/LG).
- Blower motor control module.
- DATC module.
- Blower motor relay.
- Blower motor.