C1381 Toyota Code - Acceleration Sensor Power Supply Voltage Malfunction
Quick Answer
The Skid Control ECU (Brake Actuator Assembly) receives signals from the Yaw Rate and Acceleration Sensor (Airbag Sensor Assembly) via the Controller Area Network (CAN) communication system. Common causes include Acceleration Sensor Calibration, Faulty Acceleration Sensor (Airbag Sensor Assembly), Acceleration 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
- C1381 Toyota indicates Acceleration Sensor Power Supply Voltage Malfunction.
- Common causes
- Common causes include Acceleration Sensor Calibration, Faulty Acceleration Sensor (Airbag Sensor Assembly), Acceleration 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.
Code C1381 Toyota Description
If there is trouble in the bus lines between the Acceleration Sensor (Airbag Sensor Assembly) and the CAN communication system, the DTC U0124 (Lost Communication with Lateral Acceleration Sensor Module) is output.
This Diagnostic Trouble Code (DTC) is also output when calibration has not been completed.
What are the Possible Causes of the DTC C1381 Toyota?
- Acceleration Sensor Calibration
- Faulty Acceleration Sensor (Airbag Sensor Assembly)
- Acceleration Sensor harness is open or shorted
- Acceleration Sensor circuit poor electrical connection
How to Fix the DTC C1381 Toyota?
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 C1381 Toyota 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 C1381 Toyota code?
Need more information on how to fix the C1381 Toyota code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the C1381 Toyota code diagnosed by a professional: Find a repair shop in your area
Information for Specific Toyota Models
- C1381 2013 Toyota RAV4 — Acceleration Sensor Power Supply Voltage Malfunction
- C1381 2014 Toyota RAV4 — Acceleration Sensor Power Supply Voltage Malfunction
- C1381 2015 Toyota RAV4 — Acceleration Sensor Power Supply Voltage Malfunction
- C1381 2016 Toyota RAV4 — Acceleration Sensor Power Supply Voltage Malfunction
- C1381 2017 Toyota RAV4 — Acceleration Sensor Power Supply Voltage Malfunction
- C1381 2018 Toyota RAV4 — Acceleration Sensor Power Supply Voltage Malfunction
Frequently Asked Questions about C1381 Toyota Code
1. What are the common symptoms of OBDII code C1381 Toyota (Acceleration Sensor Power Supply Voltage Malfunction)?
Symptoms may include the vehicle going into limp mode, loss of power, and the illumination of the check engine light.
2. What are the possible causes of OBDII code C1381 Toyota?
Potential causes include a faulty acceleration sensor, wiring issues, a malfunctioning power supply, or a problem with the engine control module.
3. How can I diagnose the OBDII code C1381 Toyota?
Diagnosis typically involves using a scan tool to read the code, checking the wiring and connections related to the acceleration sensor, and testing the voltage supply to the sensor.
4. Can I drive my vehicle with OBDII code C1381 Toyota?
It is not recommended to drive the vehicle with this code as it may result in performance issues and potential safety hazards.
5. How can I repair OBDII code C1381 Toyota?
Repair options may include replacing the acceleration sensor, repairing any damaged wiring, checking and fixing the power supply, or reprogramming the engine control module.
6. Is it safe to reset the OBDII code C1381 Toyota without fixing the underlying issue?
Resetting the code without addressing the root cause may temporarily turn off the check engine light, but the issue will likely reoccur and could lead to further problems.
7. Can a DIY enthusiast fix OBDII code C1381 Toyota?
Depending on the skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair this code, but professional assistance is recommended for accurate and efficient resolution.
8. How much does it cost to repair OBDII code C1381 Toyota at a dealership or repair shop?
Costs can vary based on the specific cause of the code, but repairs for this issue typically range from $200 to $600 at a dealership or repair shop.
9. How long does it take to repair OBDII code C1381 Toyota?
The repair time can vary depending on the exact cause of the code and the complexity of the repair, but it may take anywhere from 1 to 4 hours to resolve this issue.
10. Can OBDII code C1381 Toyota be prevented?
Regular vehicle maintenance, including checking and replacing sensors as needed, inspecting wiring harnesses, and ensuring a healthy power supply, can help prevent the occurrence of this code.
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