AutoCodes – Toyota – C1243 2015 Toyota RAV4

C1243 2015 Toyota RAV4 Code - Acceleration Sensor Stuck Malfunction

Quick Answer

The Skid Control ECU (Brake Actuator Assembly) receives signals from the Yaw Rate Sensor and Acceleration Sensor (Airbag Sensor Assembly) via the Controller Area Network (CAN) communication system. Common causes include Acceleration Sensor Calibration, Faulty Yaw Rate Sensor and Acceleration Sensor (Airbag Sensor Assembly), Airbag Sensor Assembly 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
C1243 2015 Toyota RAV4 indicates Acceleration Sensor Stuck Malfunction.
Common causes
Common causes include Acceleration Sensor Calibration, Faulty Yaw Rate Sensor and Acceleration Sensor (Airbag Sensor Assembly), Airbag Sensor Assembly 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,338
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 19, 2023
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Code C1243 2015 Toyota RAV4 Description

The Skid Control ECU (Brake Actuator Assembly) receives signals from the Yaw Rate Sensor and Acceleration Sensor (Airbag Sensor Assembly) via the Controller Area Network (CAN) communication system.
The Airbag Sensor Assembly has a built-in Yaw Rate Sensor and Acceleration Sensor and detects the vehicle's condition.
If there is trouble in the bus lines between the Yaw Rate Sensor and Acceleration Sensor (Airbag Sensor Assembly) and the CAN communication system, the Diagnostic Trouble Code (DTC) U0124 (malfunction in CAN communication with the acceleration sensor) is output.
These DTCs are also output when calibration has not been completed.
OBDII Code C1243 2015 Toyota RAV4 - Acceleration Sensor Stuck Malfunction - AutoCodes.com
C1243 2015 Toyota RAV4 Code - Acceleration Sensor Stuck Malfunction

What are the Possible Causes of the DTC C1243 2015 Toyota RAV4?

  • Acceleration Sensor Calibration
  • Faulty Yaw Rate Sensor and Acceleration Sensor (Airbag Sensor Assembly)
  • Airbag Sensor Assembly harness is open or shorted
  • Airbag Sensor Assembly circuit poor electrical connection

How to Fix the DTC C1243 2015 Toyota RAV4?

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 C1243 2015 Toyota RAV4 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 C1243 2015 Toyota RAV4 code?

Need more information on how to fix the C1243 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

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 C1243 2015 Toyota RAV4 Code

1. What does OBDII code C1243 on a 2015 Toyota RAV4 indicate?

- The code C1243 signifies an Acceleration Sensor Stuck Malfunction in the vehicle's system.

2. What are the common symptoms associated with OBDII code C1243 in a 2015 Toyota RAV4?

- Common symptoms include issues with the vehicle's acceleration, stability control system malfunction, and potential traction control problems.

3. What are the possible causes of the Acceleration Sensor Stuck Malfunction (code C1243) in a 2015 Toyota RAV4?

- The causes can range from a faulty acceleration sensor, damaged wiring or connectors, to issues with the vehicle's electronic control unit (ECU).

4. How can I diagnose the Acceleration Sensor Stuck Malfunction in my 2015 Toyota RAV4 with OBDII code C1243?

- Proper diagnosis involves using a diagnostic scan tool to read the trouble code, inspecting the sensor and its wiring for damage, and testing the sensor's functionality.

5. Is it safe to drive my 2015 Toyota RAV4 with OBDII code C1243 indicating an Acceleration Sensor Stuck Malfunction?

- It is not recommended to continue driving the vehicle when this code appears, as it can affect the vehicle's stability and traction control systems.

6. Can I repair OBDII code C1243 in my 2015 Toyota RAV4 myself?

- While some basic inspections like checking wiring connections can be done by DIY enthusiasts, diagnosing and repairing the acceleration sensor issue might require professional expertise.

7. How much does it typically cost to repair OBDII code C1243 (Acceleration Sensor Stuck Malfunction) in a 2015 Toyota RAV4?

- The cost of repair can vary depending on the exact cause of the issue, but it may involve sensor replacement, wiring repairs, or ECU reprogramming, which could range from a few hundred to over a thousand dollars.

8. Will resetting the OBDII code C1243 in my 2015 Toyota RAV4 make the issue go away?

- Simply resetting the code without addressing the underlying problem will not fix the Acceleration Sensor Stuck Malfunction. It's crucial to diagnose and repair the root cause of the issue.

9. How long does it usually take to repair the Acceleration Sensor Stuck Malfunction in a 2015 Toyota RAV4?

- The repair time can vary based on the exact cause of the issue and the availability of replacement parts. It could take a few hours to a full day in some cases.

10. Can OBDII code C1243 in a 2015 Toyota RAV4 trigger other warning lights on the dashboard?

- Yes, the Acceleration Sensor Stuck Malfunction indicated by code C1243 can trigger other warning lights related to stability control, traction control, or the ABS system on the dashboard.

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