General Information

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

Component Location





General Description

It contains a thermistor which measures the temperature of the inside. The signal,decided by the resistance value which changes in accordance with perceived inside temperature, is delivered to heater control unit. According to this signal, the control unit regulates incar temperature to intended value.

DTC Description

Air conditioner Control Module sets DTC B1234 if Incar temperature sensor has been detected over 4.9V for 4 seconds.

DTC Detecting Condition





Specification

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






Diagnostic Circuit Diagram