TROUBLESHOOTING
STEP
INSPECTION
ACTION
2
CHECK TO SEE WHETHER MALFUNCTION IS
IN AIRFLOW MODE ACTUATOR -1-5 V SIGNAL
OR POTENTIOMETER GND SIGNAL
• Is air mix actuator set at MAX HOT and airflow
mode actuator at VENT?
(Verify the positions of air mix actuator link and
airflow mode actuator link.)
Yes
Go to next step.
No
Go to Step 7. (Set actuators at MAX COLD and
DEFROSTER.)
*3
CHECK TO SEE WHETHER MALFUNCTION
(LACK OF CONTINUITY) IS IN WIRING
HAHNESS (BETWEEN CLIMATE CONTROL
UNIT AND AIRFLOW MODE ACTUATOR) OR
ELSEWHERE
• Turn ignition switch to ON position.
• Is there voltage of
approximately 5 V
at
climate control unit connector (16-pin) terminal
2N (+5 V signal)?
Yes
Repair wiring harness between climate control
unit and airflow mode actuator, then go to Step
18.
No
Go to next step.
*4
CHECK TO SEE WHETHER MALFUNCTION
(SHORT TO GROUND) IS IN AIR MIX
ACTUATOR OR ELSEWHERE
• Disconnect air mix actuator connector.
• Is there voltage of
approximately 5 V
at
climate control unit connector (16-pin) terminal
2N (+5 V signal)?
Yes
Inspect air mix actuator, then go to Step 18.
No
Go to next step.
*5
CHECK TO SEE WHETHER MALFUNCTION
(SHORT TO GROUND) IS IN AIRFLOW MODE
ACTUATOR OR ELSEWHERE
• Disconnect airflow mode actuator connector.
• Is there voltage of
approximately 5 V
at
climate control unit connector (16-pin) terminal
2N (+5 V signal)?
Yes
Inspect airflow mode actuator, then go to Step 18.
No
Go to next step.
*6
CHECK TO SEE WHETHER MALFUNCTION
(SHORT TO GROUND) IS IN CLIMATE
CONTROL UNIT OR WIRING HARNESS
(BETWEEN CLIMATE CONTROL UNIT AND
AIRFLOW MODE ACTUATOR)
• Disconnect climate control unit connector
(16-pin).
• Is there continuity between climate control unit
connector (16-pin) terminal 2N (+5 V signal)
and ground?
Yes
Repair wiring harness between climate control
unit and airflow mode actuator, then go to Step
18.
No
Replace climate control unit, then go to Step 18.
*7
CHECK TO SEE WHETHER MALFUNCTION
(LACK OF CONTINUITY) IS IN WIRING
HARNESS (BETWEEN CLIMATE CONTROL
UNIT AND AIRFLOW MODE ACTUATOR) OR
ELSEWHERE
• Disconnect climate control unit connector
(12-pin) and airflow mode actuator connector.
• Is there continuity between climate control unit
connector (12-pin) terminal 11 (potentiometer
GND signal) and airflow mode actuator
connector terminal E?
Yes
Go to next step.
No
Repair wiring harness between climate control
unit and airflow mode actuator, then go to Step
18.
*8
CHECK TO SEE WHETHER MALFUNCTION
(SHORT TO B+) IS IN CLIMATE CONTROL
UNIT OR WIRING HARNESS (BETWEEN
CLIMATE CONTROL UNIT AND AIRFLOW
MODE ACTUATOR)
• Turn ignition switch to ON position.
• Test voltage at climate control unit connector
(12-pin) terminal 11 (potentiometer GND
signal).
• Is voltage
approximately 12 V?
Yes
Repair wiring harness between climate control
unit and airflow mode actuator, then go to Step
18.
No
Replace climate control unit, then go to Step 18.
U -25
Summary of Contents for 626 Station Wagon
Page 25: ...CONTROL SYSTEM WIRING DIAGRAM With Immobilizer System OUTLINE F1 4 ...
Page 183: ...CONTROL SYSTEM COMPONENT LOCATION F2 7 ...
Page 204: ...MANUAL TRANSAXLE FEATURES OUTLINE J 2 OUTLINE OF CONSTRUCTION J 2 SPECIFICATIONS J 2 D J 1 ...
Page 266: ...SHIFT MECHANISM 6 Apply grease to the cam as shown K2 59 ...
Page 418: ...TROUBLESHOOTING KEYLESS ENTRY SYSTEM ON BOARD DIAGNOSTIC FUNCTION S 37 ...
Page 454: ...WARNING AND INDICATOR SYSTEM O p e ra tin g O rd e r T 32 ...