Engine-Codes - Lexus - B1411 LEXUS

B1411 LEXUS - Room Temperature Sensor Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

B1411 LEXUS Possible Causes

  • Faulty Room Temperature Sensor
  • Room Temperature Sensor harness is open or shorted
  • Room Temperature Sensor circuit poor electrical connection
  • Faulty Air Conditioning Amplifier

How is the B1411 LEXUS code repair?

Start by checking 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's pins.

What is the cost to diagnose the B1411 LEXUS code

Labor: 1.0

The cost to diagnose the B1411 LEXUS code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

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

B1411 LEXUS Meaning

The room temperature sensor is installed in the instrument panel to detect the room temperature and control the heater and air conditioner AUTO mode. The resistance of the room temperature sensor changes in accordance with the room temperature. As the temperature decreases, the resistance increases. As the temperature increases, the resistance decreases. The air conditioning amplifier applies a voltage (5 V) to the room temperature sensor and reads voltage changes as changes in the resistance of the room temperature sensor.

More Information

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