DTC B2834

id070200801200

DTC B2834

Air mix actuator (motor lock) system

Note

•  DTC B2834 will be detected when the ignition switch is turned to the ON position and approx. 30 s have passed since the mode actuator is operated.

POSSIBLE CAUSE

•  Air mix actuator malfunction

•  A/C unit (air mix link and air mix crank) malfunction

•  Open or short circuit in wiring harness between climate control unit and air mix actuator

DTC B2834	Air mix actuator (motor lock) system Note • DTC B2834 will be detected when the ignition switch is turned to the ON position and approx. 30 s have passed since the mode actuator is operated.
POSSIBLE CAUSE	• Air mix actuator malfunction • A/C unit (air mix link and air mix crank) malfunction • Open or short circuit in wiring harness between climate control unit and air mix actuator

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	• Disconnect the air mix actuator connector. • Connect battery positive voltage to air mix actuator terminal F (or terminal D) and terminal D (or terminal F) to ground. • Does the air mix actuator operate?	Yes	Connect the connector, then go to Step 3.
1		No	Go to the next step.
2	• Remove the air mix actuator. • Operate the air mix link manually. • Does the air mix link operate smoothly?	Yes	Replace the air mix actuator. (See AIR MIX ACTUATOR REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER].)
2		No	Replace the air mix link and the air mix crank.
3	• Disconnect the climate control unit connector. • Connect battery positive voltage to climate control unit terminal S (or terminal U) and terminal U (or terminal S) to ground. • Does the air mix actuator operate?	Yes	Inspect the connection of the climate control unit connector. (See CLIMATE CONTROL UNIT INSPECTION [FULL-AUTO AIR CONDITIONER].)
3		No	Repair the wiring harness.
4	• Turn the ignition switch to the ON position. • Turn the temperature setting dial to change the set temperature (operate the air mix actuator) and wait for 30 s or more. • Perform the DTC inspection.Is DTC B2834 indicated? • Is DTC B2834 indicated?	Yes	Recheck malfunction symptoms, then repeat from Step 1 if the malfunction recurs.
4		No	DTC troubleshooting completed.