DTC Description

DTC B1249 sets if the Mode Actuator Sensor signal is at or below 0.1V for 0.3 seconds.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Voltage check

1.

Poor Connection in harness

2.

Open in signal (Feedback signal), Power or Gruoud circuit

3.

Faulty Mode Actuator

4.

Faulty Air conditioner Control Unit

Enable Conditions

Ignition ON

Threshold value

Mode Actuator Sensor signal is at or below 0.1V for 0.3 seconds

Failsafe

If the Mode actuator is placed at Vent mode right before fail detection, Actuator is operated and fixed to Vent Mode Postion.

The others mode are selected, Actuator is moved to DEF mode position

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