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 air mix 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 air mix 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.)
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 E (or terminal C) and terminal C (or terminal E) 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].) (See CLIMATE CONTROL UNIT INSPECTION[FULL-AUTO AIR CONDITIONER (MZ-CD 1.6 (Y6))].)
3		No	Repair the wiring harness.