Diesel Data: Automotive Repair

General Information





B1234 In-Car Temperature Sensor Open (High)

General Information

Component Location





General Description

The In-Car Sensor contains a thermistor which measures the temperature of the vehicle's interior. The signal is used by the HVAC control unit when controling AC functions.

DTC Description

DTC B1234 sets if In-Car temperature sensor signal is at or over 4.9 V for 0.3 seconds.

DTC Detecting Condition





Specification

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






Diagnostic Circuit Diagram