Engine-Codes.com
Engine-Codes – Scion – C1202 Scion

C1202 Scion Code - Master Reservoir Level Malfunction

Quick Answer

The C1202 diagnostic trouble code (DTC) for Scion vehicles indicates a Master Reservoir Level Malfunction. Common causes include Faulty master reservoir level sensor, Wiring or electrical issues in the sensor circuit, Contaminated brake fluid affecting sensor readings. 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
C1202 Scion indicates Master Reservoir Level Malfunction.
Common causes
Common causes include Faulty master reservoir level sensor, Wiring or electrical issues in the sensor circuit, Contaminated brake fluid affecting sensor readings.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code C1202 Scion Description

The C1202 diagnostic trouble code (DTC) for Scion vehicles indicates a Master Reservoir Level Malfunction. This code is related to the vehicle's brake system and specifically refers to an issue with the master cylinder reservoir level sensor. The master cylinder reservoir is a critical component of the brake system, as it stores the brake fluid that is essential for proper brake operation. The reservoir level sensor is responsible for monitoring the brake fluid level and sending this information to the vehicle's electronic control unit (ECU).

OBDII Code C1202 Scion - Master Reservoir Level Malfunction
C1202 Scion Code - Master Reservoir Level Malfunction

Common Causes of C1202 Scion

  1. Faulty master reservoir level sensor.
  2. Wiring or electrical issues in the sensor circuit.
  3. Contaminated brake fluid affecting sensor readings.
  4. Corrosion or damage to the sensor or reservoir.

Symptoms of C1202 Scion

  1. Illumination of the brake warning light on the dashboard.
  2. Inaccurate or fluctuating brake fluid level readings on the dashboard.
  3. Loss of brake fluid without any visible leaks.
  4. Soft or spongy brake pedal feel.
  5. Decreased braking performance or longer stopping distances.

How to Fix C1202 Scion

  1. Begin by visually inspecting the master cylinder reservoir and sensor for any visible damage or contamination.
  2. Test the sensor and its wiring using a multimeter to check for proper functionality.
  3. If the sensor is faulty, replace it with a new one according to manufacturer specifications.
  4. Flush and refill the brake fluid to ensure proper levels and quality.
  5. Clear the DTC from the vehicle's ECU using a diagnostic scan tool.

Cost to Fix C1202 Scion

The cost of repairing a C1202 code for a Scion vehicle can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of replacing a faulty master reservoir level sensor can range from $150 to $300, including parts and labor. Additional costs may apply if there are other underlying issues with the brake system that need to be addressed. It's recommended to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on your vehicle's make and model.

Need more information about the C1202 Scion code?

Need more information on how to fix the C1202 Scion code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1202 Scion 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 C1202 Scion Code

1. What are the common symptoms of OBDII code C1202 (Scion) for Master Reservoir Level Malfunction?

- The common symptoms include the illumination of the check engine light, low brake fluid warning light, and potential issues with the braking system.

2. What are the possible causes of OBDII code C1202 (Scion) for Master Reservoir Level Malfunction?

- The code may be triggered by low brake fluid levels, a malfunctioning brake fluid level sensor, or wiring issues in the brake fluid level sensor circuit.

3. How can I diagnose the OBDII code C1202 (Scion) for Master Reservoir Level Malfunction?

- To diagnose this code, you can visually inspect the brake fluid reservoir for proper fluid levels and check the wiring and connectors related to the brake fluid level sensor.

4. Can low brake fluid levels cause the OBDII code C1202 (Scion) for Master Reservoir Level Malfunction?

- Yes, low brake fluid levels can trigger this code as the brake fluid level sensor may not be able to detect the proper level of fluid in the reservoir.

5. What are some repair tips for addressing OBDII code C1202 (Scion) for Master Reservoir Level Malfunction?

- Start by topping up the brake fluid to the correct level and checking for any leaks in the brake system. If the issue persists, consider replacing the brake fluid level sensor.

6. Is it safe to continue driving with OBDII code C1202 (Scion) for Master Reservoir Level Malfunction?

- It is not recommended to continue driving with this code illuminated, as it indicates a potential issue with the brake system that could compromise safety.

7. How much does it typically cost to repair OBDII code C1202 (Scion) for Master Reservoir Level Malfunction?

- The cost of repairing this code can vary depending on the underlying cause. Simple fixes like topping up brake fluid may be inexpensive, while sensor replacement could cost more.

8. Can I reset the OBDII code C1202 (Scion) for Master Reservoir Level Malfunction without fixing the issue?

- While you can clear the code using an OBDII scanner, it is important to address the root cause of the problem to prevent potential safety hazards and ensure proper brake function.

9. Will OBDII code C1202 (Scion) for Master Reservoir Level Malfunction affect the vehicle's performance?

- While the code itself may not directly impact performance, it signifies a potential issue with the brake system that could compromise braking effectiveness if left unresolved.

10. How often does OBDII code C1202 (Scion) for Master Reservoir Level Malfunction occur in Scion vehicles?

- The occurrence of this code can vary, but it is relatively common in Scion vehicles experiencing issues with the brake fluid level sensor or brake fluid levels.

Discuss the causes and fixes for C1202 Scion OBDII Code

Submit a New Comment

Code C1202 Scion comments

No comments found for this page.