C1220 2017 Chevrolet Silverado Code - Brake Pressure Sensor Supply Voltage Circuit High
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
- C1220 2017 Chevrolet Silverado indicates Brake Pressure Sensor Supply Voltage Circuit High.
- 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 C1220 2017 Chevrolet Silverado 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 C1220 2017 Chevrolet Silverado?
- 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 C1220 2017 Chevrolet Silverado?
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 C1220 2017 Chevrolet Silverado 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 C1220 2017 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code C1220 in a 2017 Chevrolet Silverado?
- Common symptoms include the illumination of the ABS warning light on the dashboard, potential loss of ABS functionality, and possible issues with brake performance.
2. What does the OBDII code C1220 on a 2017 Chevrolet Silverado indicate?
- The code C1220 signifies a problem with the Brake Pressure Sensor Supply Voltage Circuit being too high, affecting the ABS system's operation.
3. What are the possible causes of OBDII code C1220 in a 2017 Chevrolet Silverado?
- Potential causes include a faulty brake pressure sensor, damaged wiring or connectors in the circuit, a malfunctioning ABS module, or issues with the vehicle's power supply.
4. How can I diagnose the OBDII code C1220 in my 2017 Chevrolet Silverado?
- Diagnosis typically involves using a diagnostic scanner to retrieve the trouble codes, conducting a visual inspection of the ABS system components, and testing the brake pressure sensor and related circuits.
5. Is it safe to continue driving my 2017 Chevrolet Silverado with OBDII code C1220 present?
- It is not recommended to drive the vehicle with the ABS warning light on, as it may indicate potential issues with the ABS system that could affect braking performance and safety.
6. Can I repair OBDII code C1220 in my 2017 Chevrolet Silverado myself?
- While some DIY enthusiasts may attempt to address the issue by checking and repairing wiring connections, diagnosing and fixing the root cause of the problem often requires specialized tools and knowledge best handled by a professional mechanic.
7. How much does it typically cost to repair OBDII code C1220 in a 2017 Chevrolet Silverado?
- Repair costs can vary depending on the exact cause of the issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.
8. Will clearing the OBDII code C1220 in my 2017 Chevrolet Silverado make the problem go away?
- Clearing the code may temporarily turn off the warning light, but if the underlying issue causing the code is not fixed, the code is likely to reappear, and the problem will persist.
9. Can a faulty brake pressure sensor cause other codes to appear in a 2017 Chevrolet Silverado?
- Yes, a malfunctioning brake pressure sensor can potentially trigger other ABS-related trouble codes in addition to C1220, indicating further issues within the ABS system.
10. How important is it to address OBDII code C1220 promptly in a 2017 Chevrolet Silverado?
- It is crucial to address the issue promptly, as problems with the brake pressure sensor supply voltage circuit can impact the vehicle's ABS functionality, potentially compromising braking performance and safety.
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