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C1219 Chevrolet Code - Brake Pressure Sensor Supply Voltage Circuit Low

Quick Answer

The C1219 diagnostic trouble code (DTC) indicates that the brake pressure sensor supply voltage circuit is reading lower than expected in Chevrolet vehicles. Common causes include Faulty Brake Pressure Sensor: The sensor itself may be defective, causing incorrect voltage readings, Wiring Issues: Damaged or corroded wiring or connectors in the brake pressure sensor circuit can lead to low voltage supply, ECU Malfunction: A failure in the vehicle's electronic control unit could disrupt the communication with the brake pressure sensor. 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
C1219 Chevrolet indicates Brake Pressure Sensor Supply Voltage Circuit Low.
Common causes
Common causes include Faulty Brake Pressure Sensor: The sensor itself may be defective, causing incorrect voltage readings, Wiring Issues: Damaged or corroded wiring or connectors in the brake pressure sensor circuit can lead to low voltage supply, ECU Malfunction: A failure in the vehicle's electronic control unit could disrupt the communication with the brake pressure sensor.
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 Oct 04, 2024
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Code C1219 Chevrolet Description

The C1219 diagnostic trouble code (DTC) indicates that the brake pressure sensor supply voltage circuit is reading lower than expected in Chevrolet vehicles. This sensor is crucial for monitoring the hydraulic pressure within the brake system, which is essential for effective braking performance. When the voltage supply to the brake pressure sensor drops below the required threshold, the vehicle's electronic control unit (ECU) cannot accurately gauge the brake system's pressure. This can lead to several performance issues, including reduced braking efficiency and potential safety hazards.

OBDII Code C1219 Chevrolet - Brake Pressure Sensor Supply Voltage Circuit Low
C1219 Chevrolet Code - Brake Pressure Sensor Supply Voltage Circuit Low

Common Causes of C1219 Chevrolet

  1. Faulty Brake Pressure Sensor: The sensor itself may be defective, causing incorrect voltage readings.
  2. Wiring Issues: Damaged or corroded wiring or connectors in the brake pressure sensor circuit can lead to low voltage supply.
  3. ECU Malfunction: A failure in the vehicle's electronic control unit could disrupt the communication with the brake pressure sensor.
  4. Low Brake Fluid Level: Insufficient brake fluid can affect the sensor's ability to measure pressure accurately.
  5. Electrical Short: A short circuit in the brake system wiring can cause the voltage to drop unexpectedly.

Symptoms of C1219 Chevrolet

  1. Warning Lights: The ABS or brake warning light may illuminate on the dashboard.
  2. Erratic Braking: The vehicle may experience inconsistent braking performance, such as delayed or unresponsive brakes.
  3. Increased Stopping Distance: Drivers may notice that the vehicle takes longer to stop than usual.
  4. ABS Malfunction: The anti-lock braking system may become inactive, leading to potential wheel lock-up during hard braking.
  5. Diagnostic Trouble Codes: Other related codes may appear in conjunction with C1219, indicating further issues within the braking system.

How to Fix C1219 Chevrolet

  1. Visual Inspection: Begin with a thorough visual inspection of the brake pressure sensor and associated wiring for any signs of damage or corrosion.
  2. Check Voltage Supply: Use a multimeter to measure the voltage at the brake pressure sensor connector to determine if it meets manufacturer specifications.
  3. Replace Faulty Components: If the brake pressure sensor is found to be faulty, replace it with a new, OEM-quality part.
  4. Repair Wiring Issues: If damaged wiring or connectors are identified, repair or replace them to restore proper electrical flow.
  5. Clear Codes and Test Drive: After repairs, clear the diagnostic codes and perform a test drive to ensure the issue is resolved and the brake system operates correctly.

Cost to Fix C1219 Chevrolet

The typical repair costs for addressing the C1219 code can vary widely based on the specific issue identified during diagnosis. On average, the cost of parts (such as a new brake pressure sensor) can range from $50 to $150, while labor costs may range from $80 to $150 per hour, depending on the shop's location and expertise. Overall, the total repair cost could range from $150 to $500. However, it's important to note that diagnosis time and labor rates can vary significantly based on factors such as location, vehicle make and model, and engine type. In metropolitan areas or at dealerships, rates may be higher, while independent shops often provide more competitive pricing. Checking local rates and obtaining multiple estimates is advisable for a more precise cost assessment.

What does this mean?

Tech Notes for C1219 Chevrolet

Some vehicles have the Steering Angle Sensor integrated into the Clockspring.

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Information for Specific Chevrolet Models

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 C1219 Chevrolet Code

1. What does the OBDII code C1219 mean on a Chevrolet?

C1219 indicates an issue with the brake pressure sensor supply voltage circuit being too low, which can affect the vehicle's braking performance or stability systems.

2. What are the common symptoms of code C1219 in a Chevrolet?

Symptoms may include the ABS warning light or traction control light turning on, reduced braking performance, or the ABS system being disabled.

3. What causes the C1219 code to appear?

Common causes include a faulty brake pressure sensor, wiring issues such as damaged or corroded connections, or a malfunctioning ABS module.

4. How can I diagnose code C1219 in my Chevrolet?

Start by inspecting the brake pressure sensor, checking the wiring and connectors for damage or corrosion, and testing the sensor's voltage supply using a multimeter.

5. Can driving with the C1219 code cause further damage?

While the vehicle may still be drivable, the ABS and traction control systems may not function properly, potentially compromising safety in emergency braking situations.

6. How do I fix the C1219 code on my Chevrolet?

Repairs may involve replacing the brake pressure sensor, repairing damaged wiring or connectors, or reprogramming or replacing the ABS module if necessary.

7. Is the C1219 code specific to Chevrolet vehicles?

No, the C1219 code can appear on other vehicles, but the exact diagnostic and repair steps may vary depending on the make and model.

8. How much does it cost to fix the C1219 code?

Repair costs vary based on the issue, with brake pressure sensor replacement typically costing $100–$300, while ABS module replacement can cost $500–$1,000 or more.

9. Can a weak battery cause the C1219 code?

Yes, a weak or failing battery can cause low voltage issues that may trigger this code. Ensure the battery and charging system are in good condition.

10. Do I need a mechanic to fix the C1219 code?

If you're comfortable with basic diagnostics and repairs, you can attempt to fix it yourself. However, more complex issues, like ABS module replacement, may require professional assistance.

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