C1219 Buick Code - Brake Pressure Sensor Supply Voltage Circuit Low
Quick Answer
The Electronic Brake Control Module uses inputs from the Electronic Brake Control Brake Pedal Position Sensor to determine when the brake is applied and how much force is used. Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module harness is open or shorted, Electronic Brake Control Module circuit poor electrical connection. 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 Buick indicates Brake Pressure Sensor Supply Voltage Circuit Low.
- Common causes
- Common causes include Faulty Electronic Brake Control Module (EBCM), Electronic Brake Control Module harness is open or shorted, Electronic Brake Control Module circuit poor electrical connection.
- 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.
Code C1219 Buick Description
Brake pressure sensor information is communicated from the Electronic Brake Control Module (EBCM) to the Hybrid Control Processor (HCP). This information is used to schedule regenerative braking and engine autostops.
The Diagnostic Trouble Code (DTC) will be set when the Engine Control Module (ECM) detects a corrupted data message from the Electronic Brake Control Module.
What are the Possible Causes of the DTC C1219 Buick?
- Faulty Electronic Brake Control Module (EBCM)
- Electronic Brake Control Module harness is open or shorted
- Electronic Brake Control Module circuit poor electrical connection
- Faulty Starter/Generator Control Module
How to Fix the DTC C1219 Buick?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C1219 Buick 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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Frequently Asked Questions about C1219 Buick Code
1. What does the OBDII code C1219 mean on a Buick?
C1219 indicates a problem with the brake pressure sensor supply voltage circuit, specifically a low voltage condition.
2. What are the common symptoms of code C1219 in a Buick?
Symptoms may include an illuminated ABS or traction control warning light, reduced brake performance, or a loss of ABS functionality.
3. What causes the C1219 code on a Buick?
Common causes include a faulty brake pressure sensor, damaged wiring or connectors in the sensor circuit, or issues with the ABS control module.
4. Can I still drive my Buick with a C1219 code?
While the vehicle is drivable, the ABS and traction control systems may not function properly, which could affect braking performance in slippery conditions.
5. How do I troubleshoot the C1219 code on my Buick?
Start by inspecting the brake pressure sensor and its wiring for damage, corrosion, or loose connections. Use a multimeter to test the sensor’s supply voltage.
6. How do I fix the C1219 code on a Buick?
Repairs may involve replacing the faulty brake pressure sensor, repairing damaged wiring, or, in rare cases, replacing the ABS control module.
7. Can a weak battery cause the C1219 code?
Yes, a weak or failing battery can cause voltage-related issues that may trigger this code. Ensure the battery and charging system are in good condition.
8. Does code C1219 require professional repair?
While basic inspections can be done at home, diagnosing and repairing ABS-related issues often require specialized tools and knowledge, so professional assistance may be needed.
9. How much does it cost to repair a C1219 code on a Buick?
Repair costs can vary but typically range from $150 to $400, depending on whether the sensor, wiring, or ABS module needs replacement.
10. Will clearing the C1219 code fix the problem permanently?
Clearing the code will remove it temporarily, but unless the underlying issue is resolved, the code and associated symptoms will return.
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