AutoCodes – Scion – C1420 Scion

C1420 Scion Code - Acceleration Sensor Malfunction

Quick Answer

The Skid Control ECU receives signals from the yaw rate and acceleration sensor via the CAN communication system. Common causes include Faulty Yaw Rate Sensor (Built-In Acceleration Sensor), Yaw Rate Sensor harness is open or shorted, Yaw Rate Sensor circuit poor electrical connection. 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: C1420 Scion indicates Acceleration Sensor Malfunction.
Common causes: Common causes include Faulty Yaw Rate Sensor (Built-In Acceleration Sensor), Yaw Rate Sensor harness is open or shorted, Yaw Rate Sensor circuit poor electrical connection.
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 852

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 28, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1420 Scion Description

The Skid Control ECU receives signals from the yaw rate and acceleration sensor via the CAN communication system. The yaw rate sensor has a built-in acceleration sensor and detects the vehicle's condition using 2 circuits. The Skid Control ECU monitors the Acceleration Sensor. The Skid Control ECU sets the OBDII code when the Acceleration Sensor is not to factory specifications.

OBDII Code C1420 Scion - Acceleration Sensor Malfunction - AutoCodes.com — C1420 Scion Code - Acceleration Sensor Malfunction

What does this mean?

What are the Possible Causes of the DTC C1420 Scion?

Faulty Yaw Rate Sensor (Built-In Acceleration Sensor)
Yaw Rate Sensor harness is open or shorted
Yaw Rate Sensor circuit poor electrical connection

How to Fix the DTC C1420 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 C1420 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.

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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 C1420 Scion Code

1. What are common symptoms of an acceleration sensor malfunction (OBDII code C1420) in a Scion?

- Common symptoms include issues with acceleration responsiveness, unstable driving behavior, and potential traction control system malfunctions.

2. What could cause the acceleration sensor malfunction code C1420 in a Scion?

- The code C1420 in a Scion is typically caused by a faulty acceleration sensor, damaged wiring harness, or issues with the sensor's calibration.

3. How can I diagnose the acceleration sensor malfunction in my Scion?

- Diagnosing the acceleration sensor malfunction involves using a scan tool to retrieve the OBDII code C1420, inspecting the sensor and its wiring for damage, and testing the sensor's functionality.

4. Can I repair the acceleration sensor malfunction in my Scion myself?

- While some basic troubleshooting steps can be done by DIY enthusiasts, repairing the acceleration sensor malfunction usually requires specialized tools and expertise, making it advisable to seek professional help.

5. Are there any temporary fixes for the acceleration sensor malfunction code C1420 in a Scion?

- There are no recommended temporary fixes for the acceleration sensor malfunction code C1420, as addressing the underlying issue promptly is crucial for safe driving.

6. How much does it cost to repair the acceleration sensor malfunction in a Scion?

- The cost of repairing the acceleration sensor malfunction can vary depending on the extent of the issue, but it typically involves sensor replacement and can range from a few hundred to over a thousand dollars.

7. Can driving with the acceleration sensor malfunction code C1420 damage my Scion?

- Continuing to drive with the acceleration sensor malfunction can potentially lead to safety risks, as it may affect the vehicle's stability control system and overall driving performance.

8. How long does it take to repair the acceleration sensor malfunction in a Scion?

- The repair time for the acceleration sensor malfunction can vary depending on the exact cause and the availability of parts, but it may take a few hours to a day for a professional technician to complete the repair.

9. Will resetting the OBDII code C1420 make the acceleration sensor malfunction disappear?

- Resetting the OBDII code C1420 may temporarily clear the error code, but if the underlying issue causing the acceleration sensor malfunction is not addressed, the code is likely to reappear.

10. Can extreme weather conditions trigger the acceleration sensor malfunction in a Scion?

- Extreme weather conditions, such as excessive heat or moisture, can potentially impact the performance of the acceleration sensor and contribute to triggering the malfunction code C1420.