C142A Scion Code - Master Cylinder Pressure Sensor Internal Malfunction
Quick Answer
The Master Cylinder Pressure Sensor is connected to the Skid Control ECU (Brake Actuator Assembly). Common causes include Faulty Brake Actuator Assembly (Master Cylinder Pressure Sensor), Brake Actuator Assembly harness is open or shorted, Brake Actuator 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
- C142A Scion indicates Master Cylinder Pressure Sensor Internal Malfunction.
- Common causes
- Common causes include Faulty Brake Actuator Assembly (Master Cylinder Pressure Sensor), Brake Actuator Assembly harness is open or shorted, Brake Actuator 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.
Code C142A Scion Description
What are the Possible Causes of the DTC C142A Scion?
- Faulty Brake Actuator Assembly (Master Cylinder Pressure Sensor)
- Brake Actuator Assembly harness is open or shorted
- Brake Actuator Assembly circuit poor electrical connection
How to Fix the DTC C142A 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 C142A 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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Frequently Asked Questions about C142A Scion Code
What does the OBDII code C142A mean on a Scion?
Code C142A indicates a "Master Cylinder Pressure Sensor Internal Malfunction," meaning there’s an issue with the pressure sensor inside the brake master cylinder.
What are the common symptoms of code C142A in a Scion?
Symptoms may include illuminated ABS and brake warning lights, reduced braking performance, and activation of fail-safe braking modes.
What causes the C142A code to trigger in a Scion?
The most common causes are a faulty master cylinder pressure sensor, wiring issues, or a problem with the brake control module.
Can I still drive my Scion with the C142A code active?
It’s not recommended to drive with this code active, as braking performance may be compromised, increasing the risk of an accident.
How is the C142A code diagnosed in a Scion?
A technician will use a scan tool to confirm the code, inspect the master cylinder pressure sensor, check wiring and connectors, and test the brake control module for proper operation.
What repairs are needed to fix the C142A code in a Scion?
Repairs may include replacing the master cylinder pressure sensor, repairing damaged wiring, or, in rare cases, replacing the brake control module.
How much does it cost to fix the C142A code on a Scion?
The repair cost depends on the issue but typically ranges from $150 to $600, depending on whether the sensor, wiring, or brake control module needs replacement.
Can a faulty master cylinder pressure sensor cause other issues?
Yes, it can lead to poor braking performance, trigger other brake-related codes, or cause the ABS system to malfunction.
How can I prevent the C142A code from appearing on my Scion?
Regular brake system maintenance, including checking for wiring damage and ensuring proper fluid levels, can help prevent this code.
Is the C142A code specific to Scion vehicles?
While the code is common in Scion vehicles, it may also appear in other Toyota models with similar braking system designs.
Discuss the causes and fixes for C142A Scion OBDII Code
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