Test M: The Blower Motor Is Inoperative - Manual Climate Control

PINPOINT TEST M: THE BLOWER MOTOR IS INOPERATIVE - MANUAL CLIMATE CONTROL

Normal Operation
Under normal operation, the blower motor relay coil receives a ground through circuit GD120 (BK/GN). The coil receives voltage from the function selector switch through circuit CH123 (VT/GN) when any position but OFF is selected. 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 and the high speed blower motor relay through circuit CH402 (YE/GN). Ground is provided from the high speed blower motor relay to the blower motor through circuit VH301 (YE/BU). Voltage for the function selector switch is supplied by circuit A_CBP20 (YE/VT).

This pinpoint test is intended to diagnose the following:
- Fuse(s)
- Wiring, terminals or connectors
- Blower motor
- High speed blower motor relay
- Blower motor relay

M1:

M1-M2:

M3-M4:

M4 Continued:

M5:

M6-M7:

M7-M8:

M9: