General Information

Air Conditioner
B1234 In-Car Temperature Sensor Open (High) - General Information

Componet Location





General Description

The In Car Tenperature Sensor contains a thermistor which measures the temperature of the inside the vehicle. The signal, based on the resistance value, is delivered to the HVAC control unit. This information is used to control the vent output temperature.

DTC Description

The Air conditioner Control Module sets DTC B1234 if Incar temperature sensor has been detected over 4.9V for 0.3 seconds.

DTC Detecting Condition





Specification

** Resistance value of incar temp sensor as a function of temperature.






Diagnostic Circuit Diagram