Test F: The Blower Motor Is Inoperative
PINPOINT TEST F: THE BLOWER MOTOR IS INOPERATIVENormal Operation
Under normal operation, the blower motor relay coil receives ignition voltage. The coil receives ground from the HVAC module through circuit 364 (BK/LG) if any position but OFF is selected. Voltage is supplied to the relay switch contact. When the relay coil is energized, voltage is delivered to the blower motor through circuit 371 (PK/WH). Ground for the blower motor is provided through circuit 261 (OG/BK) from the blower resistor or the blower switch (HI). The blower resistor and blower switch is grounded through circuit 1205 (BK).
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Blower motor
- Blower motor relay
- HVAC module
F1-F2:
F2-F4:
F5-F6:
F6-F7:
F7-F8:
F8-F9:
