AutoCodes – GMC – C0890 GMC

C0890 GMC 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 GMC 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 1,290

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

What does this mean?

What are the Possible Causes of the DTC C0890 GMC?

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 GMC?

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 GMC 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 GMC code?

Need more information on how to fix the C0890 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific GMC Models

C0890 2014 GMC Sierra — Control Module Voltage Reference Output 3 Circuit
C0890 2015 GMC Sierra — Control Module Voltage Reference Output 3 Circuit
C0890 2016 GMC Sierra — Control Module Voltage Reference Output 3 Circuit
C0890 2017 GMC Sierra — Control Module Voltage Reference Output 3 Circuit
C0890 2018 GMC Sierra — Control Module Voltage Reference Output 3 Circuit

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 GMC Code

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

The common symptoms of OBDII code C0890 in a GMC vehicle may include issues with engine performance, illuminated Check Engine Light, and potential drivability issues.

2. What does OBDII code C0890 indicate about the Control Module Voltage Reference Output 3 Circuit in a GMC vehicle?

OBDII code C0890 indicates a fault or malfunction in the Control Module Voltage Reference Output 3 Circuit in a GMC vehicle.

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

Possible causes of OBDII code C0890 in a GMC vehicle include a faulty control module, wiring issues, poor electrical connections, or a malfunctioning voltage reference circuit.

4. How can I diagnose OBDII code C0890 in my GMC vehicle?

Diagnosing OBDII code C0890 in a GMC vehicle typically involves using a diagnostic scanner to retrieve the code, inspecting the wiring and connectors related to the Control Module Voltage Reference Output 3 Circuit, and testing the voltage reference circuit for proper operation.

5. Is it safe to continue driving with OBDII code C0890 in my GMC vehicle?

It is generally not recommended to continue driving with OBDII code C0890 present in a GMC vehicle, as it can lead to further issues with engine performance and potentially cause damage to other components.

6. Can I repair OBDII code C0890 in my GMC vehicle myself?

Repairing OBDII code C0890 in a GMC vehicle may require technical expertise and knowledge of automotive electrical systems. It is recommended to consult a professional mechanic for proper diagnosis and repair.

7. How much does it typically cost to repair OBDII code C0890 in a GMC vehicle?

The cost of repairing OBDII code C0890 in a GMC vehicle can vary depending on the underlying cause of the issue, the extent of the repairs needed, and labor costs. It is advisable to obtain quotes from different repair shops for an accurate estimate.

8. Are there any preventative maintenance tips to avoid OBDII code C0890 in a GMC vehicle?

To help prevent OBDII code C0890 in a GMC vehicle, regular maintenance checks, timely inspections of the electrical system, and addressing any warning signs promptly can help maintain the health of the control module and related circuits.

9. Can OBDII code C0890 cause other problems in a GMC vehicle if left untreated?

If left untreated, OBDII code C0890 in a GMC vehicle can potentially lead to issues with other electronic control systems, engine performance, and overall drivability. It is important to address the underlying cause promptly.

10. How long does it typically take to repair OBDII code C0890 in a GMC vehicle?

The repair time for OBDII code C0890 in a GMC vehicle can vary depending on the exact cause of the issue, availability of parts, and the expertise of the mechanic. It is advisable to consult with a professional for a more accurate time estimate.