General Information

Air Conditioner

B1238 Ambient Temperature Sensor Open (High) - General Information

Component Location





General Description

It is a negative type thermistor whose resistance is inversely proportional to temperature. Its output is used for sensor fail-safe, temperature regulation door lock, blower motor level control, mix mode control.

DTC Description

Air conditioner Control Module sets DTC B1238 if Ambient sensor has been detected over 4.9 V for 4 sec.

DTC Detecting Condition





Specification

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






Diagnostic Circuit Diagram