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B1285 Direction Control Motor -AUTO Defog

AutoHex Online Help: Hyundai ELANTRA(MD) 2012
Component Location
General Description

The Auto defogger sensor is installed on front window glass. For safety driving, The Auto defogger sensor judges and sends signal of the occurance of moisture in advance of blowing out the wind for defogging with improvement of visiablilty and comfort.

While controlling the temperature and Mode(direction of wind) set by driver, if the humidity is higher than certain level, Air condtioner control Module automatically controls auto defogging mode. Air conditioner control module changes to go back to the previous driver set mode, if the humidity is decreased.

The Air conditioner control Module automatically controls Intake actuator, A/C, Defogger actuator, Blower motor rpm, Mode actuator in accordance with the amount of humidity on the front glass.



DTC Description

The Air conditioner Control Module sets DTC B1285 if auto defogger mode actuator has not been moved to the mode,where air condition control module controls, within 40 seconds.

DTC Detecting Condition

Item

Detecting Condition

Detecting Condition

DTC Strategy

Voltage check

Open or short in motor power circuit.

Faulty auto defoger mode actuator.

Faulty air conditioner control module.

Enable Conditions

Ignition ON

Threshold value

No movement to controlled mode position for 40 seconds.

Failsafe

Fixed as current position.

Specification

? The voltage of auto defoger mode actuator in accordance with position

Door position

Voltage

CLOSE(VENT, B/L)

About 4.7V

FLOOR

About 3.94V

MIX

About 3.29V

OPEN(DEF)

About 1V

Diagnostic Circuit Diagram