AutoCodes – Scion – C1202 Scion

C1202 Scion Code - Master Reservoir Level Malfunction

Quick Answer

When a fluid level drop in the brake master cylinder reservoir assembly is detected, a signal is sent to the skid control ECU. Common causes include Low brake fluid level, Brake fluid leaks, Faulty Brake fluid level warning switch (Brake master cylinder reservoir assembly). 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 Low brake fluid level, Brake fluid leaks, Faulty Brake fluid level warning switch (Brake master cylinder reservoir assembly).
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.

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Code Popularity 3,709

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 21, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1202 Scion Description

When a fluid level drop in the brake master cylinder reservoir assembly is detected, a signal is sent to the skid control ECU.
If the DTC for the fluid level drop is memorized, the warning will be canceled and the DTC will not be stored when the fluid level returns to normal.

OBDII Code C1202 Scion - Master Reservoir Level Malfunction - AutoCodes.com — C1202 Scion Code - Master Reservoir Level Malfunction

What does this mean?

What are the Possible Causes of the DTC C1202 Scion?

Low brake fluid level
Brake fluid leaks
Faulty Brake fluid level warning switch (Brake master cylinder reservoir assembly)
Brake fluid level warning switch harness is open or shorted
Brake fluid level warning switch circuit poor electrical connection

How to Fix the DTC C1202 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 C1202 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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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.