AutoCodes – Scion – C1237 Scion

C1237 Scion 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 Scion 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,263

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C1237 Scion 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 Scion - Speed Sensor Rotor Faulty - AutoCodes.com — C1237 Scion Code - Speed Sensor Rotor Faulty

What does this mean?

What are the Possible Causes of the DTC C1237 Scion?

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 Scion?

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 Scion 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 Scion code?

Need more information on how to fix the C1237 Scion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1237 Scion code diagnosed by a professional: Find a repair shop in your area

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 Scion Code

1. What are the common symptoms of OBDII code C1237 in a Scion related to a Speed Sensor Rotor Faulty?

- Common symptoms include ABS warning light illuminated on the dashboard, erratic speedometer readings, and potential loss of ABS functionality.

2. What can cause the Speed Sensor Rotor Faulty code C1237 in a Scion?

- The code C1237 may be triggered by a faulty speed sensor rotor, damaged wiring, or a malfunction in the ABS sensor system.

3. How can I diagnose the Speed Sensor Rotor Faulty issue in my Scion triggering code C1237?

- Diagnosis involves inspecting the speed sensor rotor for damage, checking the wiring for any signs of wear or breaks, and using a diagnostic scanner to read the ABS system codes.

4. Is it safe to drive my Scion with OBDII code C1237 related to a Speed Sensor Rotor Faulty?

- It is not recommended to drive the vehicle with the ABS warning light on, as it may affect the performance of the braking system. Seek professional assistance to address the issue promptly.

5. Can I repair the Speed Sensor Rotor Faulty problem causing OBDII code C1237 in my Scion myself?

- While some DIY enthusiasts may attempt to replace the speed sensor rotor or repair wiring, it is recommended to consult a qualified mechanic for accurate diagnosis and repair of ABS system issues.

6. How much does it typically cost to repair the Speed Sensor Rotor Faulty issue triggering code C1237 in a Scion?

- The cost of repairs can vary depending on the extent of the damage and the specific components that need to be replaced. It is advisable to obtain quotes from reputable auto repair shops.

7. Will resetting the OBDII code C1237 related to a Speed Sensor Rotor Faulty in my Scion make the problem go away?

- Resetting the code may temporarily turn off the warning light, but it will not fix the underlying issue causing the fault. Proper diagnosis and repair are necessary to resolve the problem.

8. Can a Speed Sensor Rotor Faulty problem triggering code C1237 in a Scion affect vehicle performance?

- Yes, issues with the speed sensor rotor can impact the accuracy of speed readings, ABS functionality, and overall safety while driving.

9. Are there any preventive measures to avoid encountering the Speed Sensor Rotor Faulty issue in a Scion?

- Regular vehicle maintenance, including checking the ABS system components during routine inspections, can help detect potential issues early and prevent the Speed Sensor Rotor Faulty problem.

10. How long does it typically take to repair the Speed Sensor Rotor Faulty issue causing OBDII code C1237 in a Scion?

- The repair time can vary depending on the complexity of the problem and the availability of replacement parts. A mechanic can provide an estimated repair timeline after diagnosing the issue.