AutoCodes – Scion – C1422 Scion

C1422 Scion 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 Scion 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 1,856
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 Scion 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 Scion - Master Cylinder Pressure Sensor Zero Point High Malfunction - AutoCodes.com
C1422 Scion Code - Master Cylinder Pressure Sensor Zero Point High Malfunction

What are the Possible Causes of the DTC C1422 Scion?

  • 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 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 C1422 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 C1422 Scion 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 C1422 Scion Code

1. What are the common symptoms of OBDII code C1422 in a Scion related to the Master Cylinder Pressure Sensor Zero Point High Malfunction?

- Common symptoms include the illumination of the check engine light, difficulty in braking, loss of brake assist, and potential decrease in braking performance.

2. What are the possible causes of OBDII code C1422 in a Scion indicating a Master Cylinder Pressure Sensor Zero Point High Malfunction?

- Possible causes include a faulty master cylinder pressure sensor, wiring issues in the sensor circuit, low brake fluid levels, or air in the brake system.

3. How can I diagnose OBDII code C1422 in a Scion associated with the Master Cylinder Pressure Sensor Zero Point High Malfunction?

- Diagnosis involves using an OBDII scanner to read the code, checking the brake fluid level, inspecting the sensor wiring for damage, and testing the master cylinder pressure sensor.

4. What are the repair options for resolving OBDII code C1422 in a Scion linked to the Master Cylinder Pressure Sensor Zero Point High Malfunction?

- Repair options may include replacing the master cylinder pressure sensor, repairing any damaged wiring, bleeding the brake system to remove air, and ensuring the brake fluid level is correct.

5. Can I drive my Scion with OBDII code C1422 indicating a Master Cylinder Pressure Sensor Zero Point High Malfunction?

- It is not recommended to drive the vehicle with this code present, as it can affect braking performance and safety. It is advisable to address the issue promptly.

6. How critical is it to address OBDII code C1422 in a Scion related to the Master Cylinder Pressure Sensor Zero Point High Malfunction?

- It is important to address this code promptly as it can impact the vehicle's braking system, leading to potential safety risks if left unresolved.

7. Are there any preventative measures to avoid OBDII code C1422 in a Scion associated with the Master Cylinder Pressure Sensor Zero Point High Malfunction?

- Regularly checking and maintaining the brake system, monitoring brake fluid levels, and addressing any brake-related issues promptly can help prevent this code from occurring.

8. How long does it typically take to repair OBDII code C1422 in a Scion indicating a Master Cylinder Pressure Sensor Zero Point High Malfunction?

- The repair time can vary depending on the exact cause of the code and the extent of the repairs needed. It is recommended to consult a professional technician for an accurate estimate.

9. Can resetting the OBDII system clear OBDII code C1422 in a Scion related to the Master Cylinder Pressure Sensor Zero Point High Malfunction?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear. It is crucial to diagnose and repair the root cause.

10. Is it possible to perform the repair for OBDII code C1422 in a Scion associated with the Master Cylinder Pressure Sensor Zero Point High Malfunction without professional help?

- While some DIY enthusiasts may be able to address simpler causes like checking brake fluid levels, diagnosing and repairing the master cylinder pressure sensor and related components may require professional expertise.

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