AutoCodes – Chevrolet – C1220 2016 Chevrolet Silverado

C1220 2016 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 2016 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.

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Code Popularity 169

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 13, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1220 2016 Chevrolet Silverado Description

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. The Electronic Brake Control Module monitors when the driver's foot is on the brake and locks the offset. The offset is locked when three out of the four inputs indicate the brake pedal is applied. The four inputs are brake pedal travel 1, brake pedal travel 2, master cylinder pressure sensor, and brake pedal position sensor. These inputs are used to determine the driver's braking intent which is used to control the amount of pressure applied to the wheels.
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.

OBDII Code C1220 2016 Chevrolet Silverado - Brake Pressure Sensor Supply Voltage Circuit High - AutoCodes.com — C1220 2016 Chevrolet Silverado Code - Brake Pressure Sensor Supply Voltage Circuit High

What does this mean?

What are the Possible Causes of the DTC C1220 2016 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 2016 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 2016 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.

Need more information about the C1220 2016 Chevrolet Silverado code?

Need more information on how to fix the C1220 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1220 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 C1220 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code C1220 in a 2016 Chevrolet Silverado?

The common symptoms of OBDII code C1220 in a 2016 Chevrolet Silverado include the ABS warning light turning on, issues with the vehicle's braking system, and potential loss of ABS functionality.

2. What does the OBDII code C1220 Brake Pressure Sensor Supply Voltage Circuit High mean for a 2016 Chevrolet Silverado?

The OBDII code C1220 indicates that the brake pressure sensor supply voltage circuit in the 2016 Chevrolet Silverado is reading a high voltage, which can impact the proper functioning of the ABS system.

3. What are the possible causes of OBDII code C1220 in a 2016 Chevrolet Silverado?

Possible causes of OBDII code C1220 in a 2016 Chevrolet Silverado can include a faulty brake pressure sensor, damaged wiring or connectors in the circuit, or a malfunction in the ABS module.

4. How can I diagnose OBDII code C1220 in my 2016 Chevrolet Silverado?

Diagnosing OBDII code C1220 in a 2016 Chevrolet Silverado typically involves using a scan tool to retrieve the code, testing the brake pressure sensor, inspecting the wiring and connectors, and checking the ABS module for any issues.

5. Can I still drive my 2016 Chevrolet Silverado with OBDII code C1220?

It is not recommended to drive your 2016 Chevrolet Silverado with OBDII code C1220, as it can affect the proper functioning of the ABS system, potentially compromising your vehicle's safety and performance.

6. How can I repair OBDII code C1220 in my 2016 Chevrolet Silverado?

Repairing OBDII code C1220 in a 2016 Chevrolet Silverado may involve replacing the brake pressure sensor, repairing or replacing damaged wiring or connectors, or addressing any issues with the ABS module.

7. Is it possible to reset OBDII code C1220 in a 2016 Chevrolet Silverado without fixing the underlying issue?

While you may be able to clear the code temporarily, it is crucial to address the underlying issue causing OBDII code C1220 in a 2016 Chevrolet Silverado to ensure the proper functioning of the ABS system.

8. Can a DIY enthusiast fix OBDII code C1220 in a 2016 Chevrolet Silverado?

Depending on your skill level and access to tools, a DIY enthusiast may be able to diagnose and repair OBDII code C1220 in a 2016 Chevrolet Silverado, especially if the issue is related to wiring or sensor replacement.

9. How much does it cost to repair OBDII code C1220 in a 2016 Chevrolet Silverado?

The cost of repairing OBDII code C1220 in a 2016 Chevrolet Silverado can vary depending on the specific issue causing the code, the extent of the repairs needed, and whether you choose to do the repairs yourself or take your vehicle to a mechanic.

10. Will OBDII code C1220 in a 2016 Chevrolet Silverado affect the vehicle's performance?

OBDII code C1220 in a 2016 Chevrolet Silverado can impact the vehicle's ABS system and braking performance, so it is essential to address the issue promptly to ensure the safety and proper functioning of your vehicle.