AutoCodes – Lexus – B1413 Lexus

B1413 Lexus Code - Evaporator Temperature Sensor Circuit

Quick Answer

The No. Common causes include Faulty No, 1 Cooler Thermistor (Evaporator Temperature Sensor), Evaporator Temperature Sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B1413 Lexus indicates Evaporator Temperature Sensor Circuit.
Common causes: Common causes include Faulty No, 1 Cooler Thermistor (Evaporator Temperature Sensor), Evaporator Temperature Sensor harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 6,351

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 20, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1413 Lexus Description

The No. 1 Cooler Thermistor (Evaporator Temperature Sensor) is installed on the evaporator in the air conditioning unit to detect the temperature of the cooled air that has passed through the evaporator and to control the air conditioner. It sends signals to the air conditioning amplifier. The signals change in accordance with the resistance of the No. 1 Cooler Thermistor (Evaporator Temperature Sensor). 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 No. 1 Cooler Thermistor (Evaporator Temperature Sensor) and reads voltage changes as changes in the resistance of the No. 1 Cooler Thermistor (Evaporator Temperature Sensor). This sensor is used for frost prevention.
The Diagnostic Trouble Code (DTC) will be set when the Air Conditioning Amplifier Assembly detects an open or short in the No. 1 Cooler Thermistor (Evaporator Temperature Sensor) circuit.

OBDII Code B1413 Lexus - Evaporator Temperature Sensor Circuit - AutoCodes.com — B1413 Lexus Code - Evaporator Temperature Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B1413 Lexus?

Faulty No. 1 Cooler Thermistor (Evaporator Temperature Sensor)
Evaporator Temperature Sensor harness is open or shorted
Evaporator Temperature Sensor circuit poor electrical connection
Faulty Air Conditioning Amplifier

How to Fix the DTC B1413 Lexus?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1413 Lexus code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1413 Lexus Code

1. What are the common symptoms of OBDII code B1413 in a Lexus related to the evaporator temperature sensor circuit?

- Common symptoms include issues with the air conditioning system, such as inconsistent cooling or heating, and potential malfunctions with the climate control.

2. What can cause the OBDII code B1413 in a Lexus related to the evaporator temperature sensor circuit to trigger?

- The code can be triggered by a faulty evaporator temperature sensor, wiring issues, or a problem with the climate control unit.

3. How can I diagnose the cause of the OBDII code B1413 in a Lexus related to the evaporator temperature sensor circuit?

- Diagnosing the issue may involve checking the sensor's resistance, inspecting the wiring for damage, and testing the sensor's signal using a multimeter.

4. Is it safe to continue driving my Lexus with the OBDII code B1413 related to the evaporator temperature sensor circuit triggered?

- It is generally safe to drive the vehicle, but it is recommended to address the issue promptly to prevent further damage to the air conditioning system.

5. Can I repair the OBDII code B1413 in a Lexus related to the evaporator temperature sensor circuit myself?

- Depending on your skill level, you may be able to address the issue by replacing the evaporator temperature sensor or repairing any damaged wiring. Professional help is recommended if you are unsure.

6. Are there any quick fixes or temporary solutions for the OBDII code B1413 related to the evaporator temperature sensor circuit in a Lexus?

- Quick fixes may include checking and securing any loose connections, but it is essential to properly diagnose and repair the underlying issue to prevent future problems.

7. What are the potential consequences of ignoring the OBDII code B1413 in a Lexus related to the evaporator temperature sensor circuit?

- Ignoring the code can lead to continued issues with the climate control system, reduced comfort while driving, and potential damage to other components of the air conditioning system.

8. How much does it typically cost to repair the OBDII code B1413 in a Lexus related to the evaporator temperature sensor circuit?

- The cost of repair can vary depending on the root cause of the issue, but it may involve expenses for parts and labor, with an average cost ranging from $100 to $300.

9. Can a faulty evaporator temperature sensor cause other OBDII codes to trigger in a Lexus?

- Yes, a faulty evaporator temperature sensor can cause related codes to trigger, such as codes related to the air conditioning system or climate control unit.

10. Is the OBDII code B1413 related to the evaporator temperature sensor circuit a common issue in Lexus vehicles?

- While not as common as some other OBDII codes, issues with the evaporator temperature sensor circuit can occur in Lexus vehicles and may require attention to ensure proper functioning of the air conditioning system.