FULL-AUTOMATIC AIR CONDITIONER – Troubleshooting55-48
Inspection procedure 11
Inside/outside air changeover is not possible.
Probable cause
If inside/outside air changeover is not possible even when the inside/outside air
changeover switch is on, the cause is probably a malfunction of the
inside/outside air changeover damper motor.Malfunction of inside/outside air changeover
damper motor
Malfunction of inside/outside air changeover
damper
Malfunction of connector or harness
Malfunction of A/C-ECU
Can an operating sound be heard when the inside/outside air
changeover switch is operated?NOInspection procedure 15 (Refer to P.55-52.)
YES
Inside/outside air changeover damper motor check (Refer to
P.55-59.)NG
Replace
OK
Measure at the inside/outside air changeover damper motor con-
nector B-36.
Disconnect the connector, and measure at the harness
side connector.
Outside air select button: ON
Voltage between terminal (3) and body earth
OK:10 V
Inside air select button: ON
Voltage between terminal (1) and body earth
OK:10 VNGCheck the following connector:
B-05
NG
Repair OK
Check the trouble symptom.
NG
Check the harness between the inside/outside air changeover
damper motor and the A/C-ECU, and repair if necessary.
NG
Repair OK
Replace the A/C-ECU.
OK
Check the following connector:
B-36NG
Repair
OK
Check the trouble symptom.
NG
Inside/outside air changeover damper checkNG
Repair
OK
Replace the A/C-ECU.
