Component Location
General Description

The mode control actuator mounted on heater unit adjusts position of mode door by operating Direction Motor in accordance with signal of A/C control unit. Pressing mode select switch makes the mode control actuator shift in order of vent→ B/L → floor → mix.

DTC Description

Air conditioner Control Module sets DTC B2409 if Feedback signal of Driver Direction actuator has not been moved to the mode,where air condition control module controls, within 10 seconds.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

•

Voltage check

1.

Poor contact in harness

2.

Open or short in motor power circuit

3.

Faulty Driver Direction actuator

4.

Faulty air conditioner control module

Enable Conditions

•

IG KEY ON

Threshold value

•

No movement to controlled mode position for 10 seconds.

Failsafe

•

Fixed as current position

Specification
※ Voltage value of potentiometer as a function of mode door position.

Mode Door Position

Voltage

VENT

0.45±0.3V

BI-LEVEL

1.4±0.3V

FLOOR

2.45±0.3V

MIX

3.5±0.3V

DEF

4.55±0.3V

Diagnostic Circuit Diagram
note
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Яндекс.Метрика