b1413 evaporator temperature sensor circuit
B1413 Evaporator Temperature Sensor Circuit
OBD2 Code: B1413
Description: Evaporator Temperature Sensor Circuit Malfunction
Definition: This code indicates a problem with the evaporator temperature sensor circuit, which is responsible for monitoring the temperature of the air passing through the evaporator in the vehicle’s HVAC system. A malfunction can affect climate control performance.
b1413: Evaporator Temperature Sensor Circuit – Severity: Moderate
Common Causes
B1413 – Evaporator Temperature Sensor Circuit
Description: The evaporator temperature sensor circuit is used to monitor the temperature of the air conditioning system’s evaporator core. This code is set when a malfunction is detected in the sensor circuit.
- Common Causes:
- Faulty evaporator temperature sensor
- Wiring or connector issues in the sensor circuit
- Corrosion or poor connections in the sensor circuit
- Defective HVAC control module
Common Misdiagnosis
OBD2 Code: B1413
Description: Evaporator Temperature Sensor Circuit
Common Misdiagnosis: Replacing the evaporator temperature sensor without checking for wiring issues or connector problems.
Common Diagnostic Steps
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OBD2 Code: B1413 – Evaporator Temperature Sensor Circuit
Description: The evaporator temperature sensor circuit is responsible for monitoring the temperature of the air conditioning evaporator. This information is used by the vehicle’s climate control system to regulate cabin temperature.
Common Diagnostic Steps:
- Verify the code using an OBD2 scanner and clear it to see if it returns.
- Inspect the evaporator temperature sensor for any visible damage or disconnection.
- Check wiring and connectors related to the sensor for corrosion, damage, or loose connections.
- Measure the resistance of the evaporator temperature sensor with a multimeter and compare it to manufacturer specifications.
- If applicable, check for any other codes that might indicate a broader issue in the climate control system.
- Test the voltage supply at the sensor connector to ensure proper power delivery from the vehicle’s electrical system.
- If all checks are normal, consider replacing the evaporator temperature sensor as a last resort after ruling out wiring issues and other potential causes.