U–62
ON-BOARD DIAGNOSTIC
Diagnostic Procedure
End Of Sie
DTC 02, 18, 21 (WHEN TWO OR MORE DTCS ARE INDICATED AT THE SAME TIME)
A6E857001038W17
Diagnostic Procedure
End Of Sie
DTC 06, 10, 12, 14, 18, 21 (WHEN TWO OR MORE DTCS ARE INDICATED AT THE SAME TIME)
A6E857001038W18
STEP INSPECTION ACTION
1 • Disconnect airflow mode actuator connector.
• Connect battery positive voltage to terminal
D (or terminal F) and ground to terminal F (or
terminal D) of airflow mode actuator
connector.
• Does airflow mode actuator operate?
Yes Connect airflow mode actuator connector, then go to Step 3.
No Go to next step.
2 • Remove airflow mode actuator.
• Operate airflow mode main link by hand.
• Does airflow mode main link operate
smoothly?
Yes Replace airflow mode actuator.
No Replace airflow mode links and/or airflow mode cranks.
3 • Disconnect climate control unit connect (12-
pin).
• Connect battery positive voltage to terminal
2G (or terminal 2E) and ground to terminal
2E (or terminal 2G) of climate control unit
connector (24-pin).
• Does airflow mode actuator operate?
Yes Replace climate control unit.
No Repair wiring harness.
DTC 02, 18, 21 Climate control unit (+5 V power supply) inspection
POSSIBLE
CAUSE
• Climate control unit malfunction
• Short circuit between climate control unit and solar radiation sensor
• Short circuit between climate control unit and air mix actuator
• Short circuit between climate control unit and airflow mode actuator
• Open circuit between climate control unit and solar radiation sensor
• Open circuit between climate control unit and air mix actuator
• Open circuit between climate control unit and airflow mode actuator
STEP INSPECTION ACTION
1 • Disconnect climate control unit cooonnector
(24-pin) and airflow mode actuator
connector.
• Is there continuity between terminal 1B of
climate control unit connector (24-pin) and
terminal B of airflow mode actuator
connector?
Yes Go to next step.
No Repair wiring harness.
2 • Is there short circuit to ground between
terminal 1B of climate control unit connector
(24-pin) and terminal B of airflow mode
actuator connector?
Yes Repair wiring harness.
No Go to next step.
3 • Is there short circuit to ground between
terminal 1B of climate control unit connector
(24-pin) and terminal B of air mix actuator
connector?
Yes Repair wiring harness.
No Go to next step.
4 • Is there short circuit to ground between
terminal 1B of climate control unit connector
(24-pin) and terminal A of solar radiation
sensor connector?
Yes Repair wiring harness.
No Replace climate control unit.
DTC 06, 10, 12,
18, 21
Climate control unit (+5V power supply or sensor ground system) or sensor ground system
inspection
POSSIBLE
CAUSE
• Climate control unit malfunction
• Open circuit between climate control unit and each temperature sensor
• Open circuit between climate control unit and air mix actuator
• Open circuit between climate control unit and airflow mode actuator
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