AutoCodes – GMC – C0890 2014 GMC Sierra

C0890 2014 GMC Sierra Code - Control Module Voltage Reference Output 3 Circuit

Quick Answer

The brake pedal position sensor is used to sense the action of the driver's application of the brake pedal. Common causes include Faulty Brake Pedal Position Sensor, Brake Pedal Position Sensor harness is open or shorted, Brake Pedal Position Sensor 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: C0890 2014 GMC Sierra indicates Control Module Voltage Reference Output 3 Circuit.
Common causes: Common causes include Faulty Brake Pedal Position Sensor, Brake Pedal Position Sensor harness is open or shorted, Brake Pedal Position Sensor 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 302

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 05, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C0890 2014 GMC Sierra Description

The brake pedal position sensor is used to sense the action of the driver's application of the brake pedal. The brake pedal position sensor provides an analog voltage signal that will increase as the brake pedal is applied. The Body Control Module (BCM) provides a low reference signal and a 5 V reference voltage to the brake pedal position sensor. When the variable signal reaches a voltage threshold indicating the brakes have been applied, the BCM will apply battery voltage to the left and right stop lamp control circuits as well as the center high-mounted stop lamp relay control circuit illuminating the left and right stop lamps and the center high mounted stop lamp. The Diagnostic Trouble Code (DTC) will be set when the BCM detects an improper voltage in the brake pedal position sensor 5 V reference circuit.

OBDII Code C0890 2014 GMC Sierra - Control Module Voltage Reference Output 3 Circuit - AutoCodes.com — C0890 2014 GMC Sierra Code - Control Module Voltage Reference Output 3 Circuit

What does this mean?

What are the Possible Causes of the DTC C0890 2014 GMC Sierra?

Faulty Brake Pedal Position Sensor
Brake Pedal Position Sensor harness is open or shorted
Brake Pedal Position Sensor circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC C0890 2014 GMC Sierra?

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 does this mean?

Code Tech Notes

C0890:03 Control Module Voltage Reference Output 3 Circuit Low Voltage
C0890:07 Control Module Voltage Reference Output 3 Circuit High Voltage

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0890 2014 GMC Sierra 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 C0890 2014 GMC Sierra code?

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Need Help with the Code?

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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 C0890 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code C0890 in a 2014 GMC Sierra?

The common symptoms include illumination of the Check Engine Light, rough engine performance, and potential issues with the vehicle's fuel efficiency.

2. What does the OBDII code C0890 for a 2014 GMC Sierra indicate?

Code C0890 indicates a problem with the Control Module Voltage Reference Output 3 Circuit in the vehicle's electronic control module system.

3. What are the possible causes of OBDII code C0890 in a 2014 GMC Sierra?

Possible causes of code C0890 include a faulty control module, damaged wiring or connectors, a defective voltage regulator, or issues with the control module power supply.

4. How can I diagnose the Control Module Voltage Reference Output 3 Circuit issue in my 2014 GMC Sierra?

Diagnosing code C0890 may involve using a scan tool to retrieve the specific fault code, inspecting the wiring and connectors for damage, and testing the voltage regulator and control module for proper functioning.

5. Can I continue driving my 2014 GMC Sierra with OBDII code C0890?

It is not recommended to continue driving the vehicle with an unresolved C0890 code, as it can potentially lead to further damage to the control module or other components.

6. How can I repair OBDII code C0890 in my 2014 GMC Sierra?

Repairing code C0890 may involve replacing the faulty control module, repairing or replacing damaged wiring or connectors, or addressing any issues with the voltage regulator or power supply.

7. Is it possible to reset the OBDII code C0890 in a 2014 GMC Sierra without fixing the underlying issue?

While you can clear the fault code using an OBDII scanner, it is crucial to address the root cause of code C0890 to prevent it from reoccurring.

8. Are there any DIY tips for troubleshooting OBDII code C0890 in a 2014 GMC Sierra?

DIY tips for troubleshooting code C0890 include checking for loose or damaged wiring, ensuring proper connections, and inspecting the control module and voltage regulator for visible signs of damage.

9. How much does it typically cost to repair OBDII code C0890 in a 2014 GMC Sierra?

The cost of repairing code C0890 can vary depending on the specific cause of the issue, the extent of the damage, and whether you choose to perform the repairs yourself or take the vehicle to a professional mechanic.

10. Can a 2014 GMC Sierra pass a smog check with an unresolved OBDII code C0890?

An unresolved OBDII code like C0890 can cause a vehicle to fail a smog check, as it indicates a problem with the vehicle's emission control system. It is recommended to address the issue before undergoing a smog check.