B1A61 Code: Meaning, Causes, and Symptoms | OBD2 Codes
B1A61 – Cabin Temperature Sensor Circuit Short
B1A61 Possible Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
B1A61 Possible Causes
Faulty,harness is open or shorted,circuit poor electrical connection
The in-vehicle temperature and humidity sensor contains a thermistor and a sensing element which separately measures the in-vehicle air temperature and the humidity, then sends those readings to the FCIM. The in-vehicle temperature and humidity sensor has an electric fan within the sensor that draws in-vehicle air across the two sensing elements. The FCIM may adjust the actuator doors based on the in-vehicle temperature and humidity sensor information to maintain the desired humidity and temperature of the passenger cabin air. The Front Controls Interface Module (FCIM) monitors the Cabin Temperature Sensor. The FCIM sets the OBDII code when the Cabin Temperature Sensor is not to factory specifications.