B11D5 Code: Meaning, Causes, and Symptoms | OBD2 Codes

B11D5 – A/C Cool Down Test Performance EVAP Temperature Sensor Error

 

B11D5 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

B11D5 Possible Causes

 

Faulty EVAP Temperature Sensor,EVAP Temperature Sensor harness is open or shorted,EVAP Temperature Sensor circuit poor electrical connection,Faulty A/C Heater Module

 

B11D5 Description

 

The Evaporator Temperature Sensor is a variable resistor that changes in conjunction with temperature, or otherwise known as a thermistor. The Evaporator Temperature Sensor is located in the HVAC housing downstream of the A/C evaporator. The A/C Heater Module monitors the evaporator temperature by monitoring the voltage change of the Evaporator Temperature Sensor Signal circuit. If the monitored voltage drops below or rises above a predetermined voltage, a Diagnostic Trouble Code (DTC) will set.