Engine-Codes - Lexus - B1411 Lexus

B1411 Lexus Code - Room Temperature Sensor Circuit

- Code Popularity: 5,555 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1411 Lexus?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Cooler Thermistor (Room Temperature Sensor)
  • Room Temperature Sensor harness is open or shorted
  • Room Temperature Sensor circuit poor electrical connection
  • Faulty Air Conditioning Amplifier Assembly
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How to Fix the DTC B1411 Lexus?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B1411 Lexus code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the B1411 Lexus Code Mean?

The Cooler Thermistor (Room Temperature Sensor) is installed in the instrument panel to detect the cabin temperature which is used to control the heater and air conditioning system AUTO mode. The resistance of the Cooler Thermistor (Room Temperature Sensor) Thermistor changes in accordance with the cabin temperature. As the temperature decreases, the resistance increases. As the temperature increases, the resistance decreases.
The Air Conditioning Amplifier Assembly applies a voltage (5 V) to the Cooler Thermistor (Room Temperature Sensor) and reads voltage changes due to changes in the resistance of the Cooler Thermistor (Room Temperature Sensor).
The Diagnostic Trouble Code (DTC) will be set when the Air Conditioning Amplifier Assembly detects an open or short in the Cooler Thermistor (Room Temperature Sensor) circuit.

B1411 Lexus Code - Room Temperature Sensor Circuit

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