General Information

Air Conditioner
B1242 Evaporator Sensor Open (High) - General Information

Component Location





General Description

The Evaporator sensor is located on the AC/heater boxand it detects the evaporator core temperature. When the core temperature is below the threshold value, the A/C ECU interrupts the compressor relay in order to prevent evaporator freezing.

DTC Description

The Air conditioner Control Module sets DTC B1242 if Evaporator sensor has been detected over 4.9V for 4sec.

DTC Detecting Condition





Specification

** Resistance value of Ambient sensor as a function of temperature.






Diagnostic Circuit Diagram