DTC B1086:71 [CLIMATE CONTROL UNIT (MANUAL AIR CONDITIONER)]

id0702k3816700

System malfunction location	•  Airflow mode actuator motor lock
Detection condition	•  Airflow mode actuator motor lock
Fail-safe function	Malfunction determined when ignition switched ON •  Airflow mode actuator drive signal is stopped right when the malfunction is determined. Malfunction already exists when ignition switched ON •  Nine seconds after the ignition is switched ON, the airflow mode actuator drive signal is output normally again. Afterwards, motor output is stopped during malfunction determination.
Possible cause	•  Connector or terminal malfunction •  Airflow mode actuator malfunction •  A/C unit (airflow mode link and airflow mode crank) malfunction •  Open circuit in wiring harness between climate control unit and airflow mode actuator •  Short to ground in wiring harness between climate control unit and airflow mode actuator •  Climate control unit malfunction

Diagnostic Procedure

Step	Inspection		Action
1	INSPECT AIRFLOW MODE ACTUATOR CONNECTOR •  Switch the ignition off. •  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) •  Disconnect the airflow mode actuator connector. (See AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER].) •  Inspect the connector and terminals (corrosion, damage, pin disconnection). •  Are the connector and terminals normal?	Yes	Go to the next step.
		No	Repair/replace the connector or terminal. After repair procedure, go to the next step.
2	INSPECT AIRFLOW MODE ACTUATOR OPERATION •  Disconnect the airflow mode actuator connector. •  Apply battery positive voltage and connect the ground to the airflow mode actuator terminals F and D, and then inspect the airflow mode actuator. •  Does the airflow mode actuator operate?	Yes	Connect the connector, then go to Step 4.
		No	Go to the next step.
3	INSPECT AIRFLOW MODE MAIN LINK OPERATION •  Remove the airflow mode actuator. •  Operate the airflow mode main link manually. •  Does the airflow mode main link operate smoothly?	Yes	Replace the airflow mode actuator. (See AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER].) Go to the next step.
		No	Replace the airflow mode main link, airflow mode sub link, and the airflow mode crank. Go to the next step.
4	INSPECT AIRFLOW MODE ACTUATOR CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND •  Disconnect the climate control unit connector. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER].) •  Apply battery positive voltage and connect the ground to the climate control unit connector terminals V and T, and then inspect the airflow mode actuator. •  Does the airflow mode actuator operate?	Yes	Go to the next step.
		No	Repair/replace the malfunctioning vehicle wiring harness, connector, or terminal. After repair procedure, go to the next step.
5	VERIFY CLIMATE CONTROL UNIT CONNECTOR CONDITION •  Inspect the connector and terminals (corrosion, damage, pin disconnection). •  Are the connector and terminals normal?	Yes	Go to the next step.
		No	Repair/replace the malfunctioning vehicle wiring harness, connector, or terminal. After repair procedure, go to the next step.
6	VERIFY THAT SAME DTC IS NOT OUTPUT AGAIN •  Reconnect the disconnected connectors. •  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) •  Clear the past malfunction from memory. •  Verify DTCs. •  Is DTC B1086:71 output?	Yes	Repeat the inspection from Step 1. •  If the malfunction does not recur, go to the next step. •  If the malfunction recurs, replace the climate control unit. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION [MANUAL AIR CONDITIONER].) Go to the next step.
		No	Go to the next step.
7	VERIFY THAT NO OTHER DTCs ARE PRESENT •  Verify other DTCs displayed. •  Are any other DTCs output?	Yes	Perform the corresponding DTC inspection.
		No	DTC troubleshooting completed.