
FULL-AUTOMATIC AIR CONDITIONER –
Troubleshooting
55-39
Code No.32 Potentiometer system of air outlet changeover
damper motor assembly
Probable cause
This diagnosis code is output if no signals are input from air outlet changeover
damper potentiometer to A/C-ECU because of short-circuit or open-circuit in the
harness.
D
Malfunction of the air outlet changeover damper
potentiometer
D
Malfunction of connector, harness
D
Malfunction of the A/C-ECU
Air outlet changeover damper potentiometer check (Refer to
P.55-60.)
NG
Replace
OK
Measure at the air outlet changeover damper potentiometer con-
nector B-06.
D
Disconnect the connector, and measure at the harness
side connector.
D
Voltage between terminal (2) and body earth
OK: 5 V
NG
Check the following connector:
B-04
NG
Repair
OK
Check the trouble symptom.
NG
Check the harness between the air outlet changeover damper
potentiometer and the A/C-ECU.
NG
Repair
OK
Replace the A/C-ECU.
OK
Measure at the A/C-ECU connector B-04.
D
Connect the connector.
D
Air outlet changeover damper position: DEF
D
Voltage between terminal (6) and body earth
OK: 4.8 – 5.2 V
NG
Check the following connector:
B-06
NG
Repair
OK
Check the trouble symptom.
NG
Check the harness between the air outlet changeover damper
motor potentiometer and the A/C-ECU, and repair if necessary.
OK
Check the following connector: B-04
NG
Repair
OK
Check the trouble symptom.
NG
Replace the A/C-ECU.