C1219 GMC Code - Brake Pressure Sensor Supply Voltage Circuit Low
Quick Answer
The C1219 GMC code indicates a problem with the brake pressure sensor supply voltage circuit being too low. Common causes include Faulty brake pressure sensor, Corrosion or damage to the wiring harness connected to the sensor, Issues with the ESC module. 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 GMC indicates Brake Pressure Sensor Supply Voltage Circuit Low.
- Common causes
- Common causes include Faulty brake pressure sensor, Corrosion or damage to the wiring harness connected to the sensor, Issues with the ESC module.
- 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 C1219 GMC Description
The C1219 GMC code indicates a problem with the brake pressure sensor supply voltage circuit being too low. The brake pressure sensor is a crucial component of the vehicle's brake system, as it measures the hydraulic pressure within the braking system. This information is essential for the vehicle's electronic stability control (ESC) system to operate effectively, as it helps to modulate brake pressure and prevent wheel lock-up during sudden braking or slippery road conditions.
Common Causes of C1219 GMC
- Faulty brake pressure sensor.
- Corrosion or damage to the wiring harness connected to the sensor.
- Issues with the ESC module.
- Low voltage or electrical problems in the brake system.
- Faulty ABS pump.
Symptoms of C1219 GMC
- Illumination of the ABS warning light on the dashboard.
- Increased stopping distance when applying the brakes.
- Loss of ESC system functionality.
- Difficulty stopping the vehicle in slippery conditions.
- ABS system activating unnecessarily or not activating when needed.
How to Fix C1219 GMC
- Begin by performing a visual inspection of the wiring harness connected to the brake pressure sensor to check for any visible damage or corrosion. Repair or replace the wiring as needed.
- Test the brake pressure sensor using a multimeter to determine if it is functioning correctly. Replace the sensor if it is faulty.
- Check the voltage supply to the brake pressure sensor and ensure it is within the proper range. Address any electrical issues if the voltage is too low.
- If the issue persists, inspect the ESC module and ABS pump for any faults or malfunctions. Replace or repair these components if necessary.
- Clear the diagnostic trouble codes from the vehicle's system using a scan tool and perform a road test to ensure that the issue has been resolved.
Cost to Fix C1219 GMC
The cost of repairing a low brake pressure sensor supply voltage circuit can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the parts for this repair could range from $100 to $300, while the labor costs may be between $150 and $300. This would bring the total cost of the repair to approximately $250 to $600. However, it's important to note that these are rough estimates, and actual costs may differ based on the factors mentioned earlier. It's recommended to get a detailed quote from a trusted auto repair shop for a more accurate cost estimate.
Tech Notes for C1219 GMC
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Information for Specific GMC Models
- C1219 2014 GMC Sierra — Brake Pressure Sensor Supply Voltage Circuit Low
- C1219 2015 GMC Sierra — Brake Pressure Sensor Supply Voltage Circuit Low
- C1219 2016 GMC Sierra — Brake Pressure Sensor Supply Voltage Circuit Low
- C1219 2017 GMC Sierra — Brake Pressure Sensor Supply Voltage Circuit Low
- C1219 2018 GMC Sierra — Brake Pressure Sensor Supply Voltage Circuit Low
Frequently Asked Questions about C1219 GMC Code
1. What does the OBDII code C1219 mean on a GMC vehicle?
C1219 indicates a problem with the brake pressure sensor supply voltage circuit, specifically that the voltage is too low.
2. What are the common symptoms of code C1219 in a GMC vehicle?
Symptoms may include the ABS warning light turning on, reduced braking performance, or inconsistent brake pedal feel.
3. What causes the C1219 code to appear on a GMC?
Common causes include a faulty brake pressure sensor, damaged wiring or connectors in the sensor circuit, or a failing ABS control module.
4. Can I still drive my GMC with the C1219 code present?
Driving with this code is not recommended, as it could affect the performance of the ABS system and compromise braking safety.
5. How is the C1219 code diagnosed in a GMC?
Technicians typically use a scan tool to verify the code, inspect the brake pressure sensor and its wiring, and check the voltage supply to the circuit.
6. How do you fix the C1219 code on a GMC vehicle?
Repairs may involve replacing the brake pressure sensor, repairing or replacing damaged wiring, or addressing a faulty ABS control module.
7. What tools are needed to troubleshoot the C1219 code on a GMC?
A multimeter, OBDII scanner, and wiring diagrams for the vehicle are commonly used for diagnosing this issue.
8. How much does it cost to repair the C1219 code on a GMC?
Repair costs vary but may range from $100 to $500, depending on whether the issue is with the sensor, wiring, or ABS module.
9. Can a low battery voltage cause the C1219 code to set on a GMC?
Yes, if the vehicle’s battery or charging system is not functioning properly, it can lead to low voltage in the brake pressure sensor circuit.
10. Will clearing the C1219 code fix the problem permanently?
No, clearing the code without addressing the underlying issue will likely result in the code returning. Proper diagnosis and repair are needed.
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