AutoCodes – Lexus – C1237 Lexus

C1237 Lexus Code - Speed Sensor Rotor Faulty

Quick Answer

The Skid Control ECU measures the speed of each wheel by receiving signals from the speed sensor. Common causes include Tire and wheel size, Tire deformation, Faulty Speed sensor rotor. 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: C1237 Lexus indicates Speed Sensor Rotor Faulty.
Common causes: Common causes include Tire and wheel size, Tire deformation, Faulty Speed sensor rotor.
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 1,008

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 Jul 28, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1237 Lexus Description

The Skid Control ECU measures the speed of each wheel by receiving signals from the speed sensor. These signals are used for recognizing that all four wheels are operating properly. Therefore, all wheel signals must be equal. The Diagnostic Trouble Code (DTC) will set when the Skid Control ECU detects a discrepancy among four wheel speed sensor output or abnormal pulse signals from 3 or more sensors.

OBDII Code C1237 Lexus - Speed Sensor Rotor Faulty - AutoCodes.com — C1237 Lexus Code - Speed Sensor Rotor Faulty

What does this mean?

What are the Possible Causes of the DTC C1237 Lexus?

Tire and wheel size
Tire deformation
Faulty Speed sensor rotor
Faulty Speed sensor
Faulty Skid control ECU (Brake Actuator Assembly)

How to Fix the DTC C1237 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 C1237 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.

Need more information about the C1237 Lexus code?

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Need Help with the Code?

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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 C1237 Lexus Code

1. What are the common symptoms of a C1237 OBDII code in a Lexus related to a speed sensor rotor faulty?

- Common symptoms include ABS warning light illuminated on the dashboard, traction control system malfunction, and potential loss of stability control.

2. What causes the C1237 OBDII code indicating a speed sensor rotor faulty in a Lexus?

- The code is often triggered by a faulty speed sensor rotor, damaged wiring, or a malfunctioning ABS sensor.

3. How can I diagnose the C1237 OBDII code related to a speed sensor rotor fault in my Lexus?

- A diagnostic scan tool can help identify the specific wheel speed sensor causing the issue. Checking the wiring and connections is also recommended.

4. Can I still drive my Lexus with a C1237 OBDII code indicating a faulty speed sensor rotor?

- It is not recommended to drive the vehicle with a C1237 code as it may compromise the stability and safety systems of the car.

5. What are the repair options for fixing the C1237 OBDII code in a Lexus due to a speed sensor rotor fault?

- Repair options include replacing the faulty speed sensor rotor, repairing damaged wiring, or addressing any issues with the ABS sensor.

6. How much does it typically cost to repair a C1237 OBDII code related to a speed sensor rotor fault in a Lexus?

- The cost of repairs can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

7. Are there any DIY tips for resolving the C1237 OBDII code indicating a speed sensor rotor fault in a Lexus?

- While some basic troubleshooting like checking connections and wiring can be done DIY, it is recommended to consult a professional for accurate diagnosis and repair.

8. Can a C1237 OBDII code in a Lexus be reset without fixing the underlying issue of a faulty speed sensor rotor?

- Resetting the code without addressing the root cause may temporarily turn off the warning light, but the issue will likely reoccur until properly repaired.

9. Is it safe to continue driving my Lexus if the C1237 OBDII code related to a speed sensor rotor fault is intermittently appearing?

- It is not safe to ignore intermittent occurrences of the C1237 code, as it indicates a potential issue with the vehicle's stability and safety systems.

10. How long does it typically take to repair a C1237 OBDII code in a Lexus caused by a faulty speed sensor rotor?

- The repair time can vary based on the extent of the issue, but it may take anywhere from 1 to 3 hours for a professional technician to diagnose and fix the problem.