AutoCodes – Toyota – C1422 2018 Toyota RAV4

C1422 2018 Toyota RAV4 Code - Master Cylinder Pressure Sensor Zero Point High Malfunction

Quick Answer

The Master Cylinder Pressure Sensor is connected to the Skid Control ECU (Brake Actuator Assembly) in the Brake Actuator Assembly. Common causes include Faulty Stop Light Switch Assembly, Stop Light Switch Assembly harness is open or shorted, Stop Light Switch Assembly 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
C1422 2018 Toyota RAV4 indicates Master Cylinder Pressure Sensor Zero Point High Malfunction.
Common causes
Common causes include Faulty Stop Light Switch Assembly, Stop Light Switch Assembly harness is open or shorted, Stop Light Switch Assembly 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 446
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 29, 2023
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Code C1422 2018 Toyota RAV4 Description

The Master Cylinder Pressure Sensor is connected to the Skid Control ECU (Brake Actuator Assembly) in the Brake Actuator Assembly. The Skid Control ECU monitors the Master Cylinder Pressure Sensor. The Skid Control ECU sets the OBDII code when the Master Cylinder Pressure Sensor is not to factory specifications.
OBDII Code C1422 2018 Toyota RAV4 - Master Cylinder Pressure Sensor Zero Point High Malfunction - AutoCodes.com
C1422 2018 Toyota RAV4 Code - Master Cylinder Pressure Sensor Zero Point High Malfunction

What are the Possible Causes of the DTC C1422 2018 Toyota RAV4?

  • Faulty Stop Light Switch Assembly
  • Stop Light Switch Assembly harness is open or shorted
  • Stop Light Switch Assembly circuit poor electrical connection
  • Faulty Skid Control ECU (Brake Actuator Assembly)

How to Fix the DTC C1422 2018 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 C1422 2018 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 C1422 2018 Toyota RAV4 code?

Need more information on how to fix the C1422 2018 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1422 2018 Toyota RAV4 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 C1422 2018 Toyota RAV4 Code

1. What are the common symptoms of OBDII code C1422 in a 2018 Toyota RAV4?

The common symptoms of OBDII code C1422 in a 2018 Toyota RAV4 include the brake warning light staying on, issues with the brake system, and potential loss of braking power.

2. What does the OBDII code C1422 "Master Cylinder Pressure Sensor Zero Point High Malfunction" indicate in a 2018 Toyota RAV4?

OBDII code C1422 in a 2018 Toyota RAV4 indicates a malfunction in the master cylinder pressure sensor zero point, which can affect the proper functioning of the braking system.

3. What are the possible causes of OBDII code C1422 in a 2018 Toyota RAV4?

Possible causes of OBDII code C1422 in a 2018 Toyota RAV4 include a faulty master cylinder pressure sensor, damaged wiring or connectors in the sensor circuit, or issues with the brake system itself.

4. How can I diagnose the OBDII code C1422 in my 2018 Toyota RAV4?

Diagnosing OBDII code C1422 in a 2018 Toyota RAV4 typically involves using an OBDII scanner to retrieve the code, inspecting the master cylinder pressure sensor and its connections, and conducting a thorough check of the brake system.

5. What are some repair tips for fixing OBDII code C1422 in a 2018 Toyota RAV4?

Repair tips for fixing OBDII code C1422 in a 2018 Toyota RAV4 may include checking and replacing the master cylinder pressure sensor, repairing any damaged wiring or connectors, and ensuring proper calibration of the sensor.

6. Can I continue driving my 2018 Toyota RAV4 with OBDII code C1422?

It is not recommended to continue driving your 2018 Toyota RAV4 with OBDII code C1422, as it indicates a malfunction in the braking system that could compromise your safety on the road.

7. How much does it cost to repair OBDII code C1422 in a 2018 Toyota RAV4?

The cost to repair OBDII code C1422 in a 2018 Toyota RAV4 can vary depending on the specific cause of the issue, but it may involve sensor replacement, wiring repairs, or brake system adjustments.

8. Can I reset the OBDII code C1422 in my 2018 Toyota RAV4 on my own?

While you can clear the OBDII code C1422 using an OBDII scanner, it is important to diagnose and address the underlying issue causing the code to prevent it from reoccurring.

9. Are there any recalls related to OBDII code C1422 in a 2018 Toyota RAV4?

Recalls related to OBDII code C1422 in a 2018 Toyota RAV4 would be issued by the manufacturer, so it is advisable to check with Toyota or the National Highway Traffic Safety Administration (NHTSA) for any related recalls.

10. How can I prevent OBDII code C1422 from appearing in my 2018 Toyota RAV4?

Regular maintenance of your 2018 Toyota RAV4's braking system, including checking the master cylinder pressure sensor and related components, can help prevent OBDII code C1422 from appearing.

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