Specifications

U60
ON-BOARD DIAGNOSTIC
End Of Sie
DTC 19
A6E857001038W12
Diagnostic Procedure
End Of Sie
DTC 21
A6E857001038W13
Diagnostic Procedure
End Of Si e
2 • Disconnect airflow mode actuator connector.
• Is resistance between terminals 1U and 1I of
climate control unit connector (24-pin) more
than 387 ohms?
Yes Go to next step.
No Repair wiring harness. (Short circuit)
3 • Disconnect climate control unit connector
(24-pin).
• Is resistance between terminals 1B and 1I of
climate control unit connector (24-pin) less
than 4.8 kilohms?
Yes Go to next step.
No Repair wiring harness. (Open circuit)
4 • Is resistance between terminals 1B and 1U
of climate control unit connector (24-pin) less
than 4.2 kilohms?
Yes Replace climate control unit.
No Repair wiring harness. (Open circuit)
STEP INSPECTION ACTION
DTC 19 Air mix actuator (potentiometer) system inspection
POSSIBLE
CAUSE
• Air mix actuator malfunction
• Climate control unit malfunction
• Open circuit between air mix actuator and climate control unit
• Short circuit between air mix actuator (terminal C) and climate control unit (terminal 1U: 24-pin)
STEP INSPECTION ACTION
1 • Inspect air mix actuator.
• Is it okay?
Yes Go to next step.
No Replace air mix actuator.
2 • Disconnect climate control unit connector
(24-pin) and air mix actuator connector.
• Is there open circuit between following
terminals of climate control unit connector
(24-pin) and air mix actuator connector?
1BB
1UC
1IA
Yes Repair wiring harness.
No Go to next step.
3 • Is there short circuit to ground between
terminal 1U of climate control unit connector
(24-pin) and terminal C of air mix actuator
connector?
Yes Repair wiring harness.
No This system is normal at present. (Erase the past failure
from memory.)
DTC 21 Airflow mode actuator (potentiometer) system inspection
POSSIBLE
CAUSE
• Airflow mode actuator malfunction
• Climate control unit malfunction
• Open circuit between airflow mode actuator and climate control unit
• Short circuit between airflow mode actuator (terminal C) and climate control unit (terminal 1W: 24-pin)
STEP INSPECTION ACTION
1 • Inspect airflow mode actuator.
• Is it okay?
Yes Go to next step.
No Replace airflow mode actuator.
2 • Disconnect air mix actuator connector.
• Is resistance between terminals 1W and 1I of
climate control unit connector (24-pin) more
than 387 ohms?
Yes Go to next step.
No Repair wiring harness. (Short circuit)
3 • Disconnect climate control unit connector
(24-pin).
• Is resistance between terminals 1B and 1I of
climate control unit connector (24-pin) less
than 4.8 kilohms?
Yes Go to next step.
No Repair wiring harness. (Open circuit)
4 • Is resistance between terminals 1B and 1W
of climate control unit connector (24-pin) less
than 4.2 kilohms?
Yes Replace climate control unit.
No Repair wiring harness. (Open circuit)