Component Location
General Description

The temperature control actuator is located at the heater unit. The actuator consists of a motor and feedback potentiometer that is used by the A/C ECU to control air temperature and to monitor actuator operation.

DTC Description

Airconditioner Control Module sets DTC B1205 if the Feed Back signal of Passenger Air mix actuator(Temperature actuator) has been detected over 4.9V for 100ms.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

•

Voltage check

•

Short to battery in signal(Feedback) circuit

•

Faulty passenger air mix actuator

•

Faulty A/C control unit

Enable Conditions

•

IG KEY ON

Threshold value

•

Feedback ciruit has been detected over 4.9V for 100ms

Failsafe

•

setting temperature : 24.5℃(76.1℉) fix at max. cooling position

•

setting temperature : 25℃(77℉) fix at max. heating position

Specification
※ Voltage value of Air Mix potentiometer as a function of temp door position.

Door position

Voltage

Max. cool

0.3±0.15V

Max. warm

4.7±0.15V

Diagnostic Circuit Diagram
Яндекс.Метрика