C1479 Code - Rear Left Wheel Brake Pressure Control Plausibility Failure
Quick Answer
The diagnostic trouble code C1479 indicates a Rear Left Wheel Brake Pressure Control Plausibility Failure. Common causes include Faulty brake pressure sensor on the rear left wheel, Malfunctioning brake pressure control module, Damaged wiring or connectors in the brake pressure control system. 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
- C1479 indicates Rear Left Wheel Brake Pressure Control Plausibility Failure.
- Common causes
- Common causes include Faulty brake pressure sensor on the rear left wheel, Malfunctioning brake pressure control module, Damaged wiring or connectors in the brake pressure control system.
- 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 C1479 Description
The diagnostic trouble code C1479 indicates a Rear Left Wheel Brake Pressure Control Plausibility Failure. This means that there is a discrepancy or inconsistency in the brake pressure control system specifically related to the rear left wheel. The brake pressure control system is responsible for ensuring that the correct amount of hydraulic pressure is applied to each wheel during braking to optimize stopping performance and prevent skidding.
Common Causes of C1479
- Faulty brake pressure sensor on the rear left wheel.
- Malfunctioning brake pressure control module.
- Damaged wiring or connectors in the brake pressure control system.
- Hydraulic brake system issues such as air in the brake lines or a leaking brake caliper.
- Electronic control unit (ECU) software or programming issues.
Symptoms of C1479
- Uneven braking performance, with the rear left wheel feeling either over or under-braked.
- Increased stopping distances or reduced braking effectiveness.
- ABS (Anti-lock Braking System) warning light illuminating on the dashboard.
- Vehicle pulling to one side during braking.
- Pulsation or vibration in the brake pedal when braking.
How to Fix C1479
- Diagnose the specific cause of the code by using a professional diagnostic scan tool to pinpoint the issue within the brake pressure control system.
- Inspect the rear left wheel brake pressure sensor and control module for any signs of damage or malfunction. Replace if necessary.
- Check the wiring and connectors for any faults, corrosion, or breaks. Repair or replace as needed.
- Bleed the brake system to remove any air bubbles that may be affecting brake pressure.
- Perform a comprehensive test drive to ensure that the issue has been resolved and that the brake system is functioning correctly.
Cost to Fix C1479
The typical repair costs for addressing a Rear Left Wheel Brake Pressure Control Plausibility Failure can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the repair costs for this type of brake system issue can range from $200 to $500, including parts and labor. However, it is essential to consider that labor rates can vary significantly based on location, vehicle make and model, and the complexity of the repair. Therefore, it is advisable to consult with a professional mechanic for a more accurate cost estimate based on the specific circumstances.
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Code C1479 Information for Specific Makes
- C1479 Ford — Rear Left Wheel Brake Pressure Control Plausibility Failure
- C1479 Lincoln — Rear Left Wheel Brake Pressure Control Plausibility Failure
- C1479 Mercury — Rear Left Wheel Brake Pressure Control Plausibility Failure
Frequently Asked Questions about C1479 Code
1. What does the OBDII code C1479 mean?
C1479 indicates a plausibility failure in the rear left wheel brake pressure control system, often related to an issue with the ABS or electronic stability control system.
2. What are the common symptoms of code C1479?
Symptoms may include the ABS warning light or stability control light being illuminated, reduced braking performance, and potential loss of traction control functionality.
3. What causes the C1479 code to appear?
Common causes include a faulty ABS module, a malfunctioning brake pressure sensor, damaged wiring or connectors, or air or contamination in the brake fluid.
4. Can I drive my car with a C1479 code?
It is possible to drive with this code, but it is not recommended, as the ABS and stability control systems may not function properly, increasing the risk of accidents in emergency braking or slippery conditions.
5. How do I diagnose the C1479 code?
Diagnosis involves scanning the ABS module for related codes, visually inspecting wiring and connectors, and testing the rear left brake pressure sensor and hydraulic system for faults.
6. Can a low brake fluid level trigger the C1479 code?
Yes, low brake fluid or air in the brake lines can cause pressure control issues and trigger this code. Ensure the brake fluid is at the proper level and free of air bubbles.
7. How do I fix the C1479 code?
Repairs may include replacing a faulty ABS module, repairing damaged wiring, replacing the brake pressure sensor, or bleeding the brake system to remove air or contamination.
8. How much does it cost to fix a C1479 code?
Repair costs vary depending on the issue but may range from $100 for a simple brake fluid flush to $1,000 or more for ABS module replacement.
9. Can a faulty ABS module cause the C1479 code?
Yes, a malfunctioning ABS module can fail to properly control brake pressure, leading to this code.
10. How can I prevent the C1479 code from recurring?
Regularly maintain your brake system, check brake fluid levels, inspect ABS components, and address any braking issues promptly to prevent future occurrences of this code.
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