C0890 2018 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 2018 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.
Code C0890 2018 GMC Sierra Description
What are the Possible Causes of the DTC C0890 2018 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 2018 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.
Code Tech Notes
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 2018 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 2018 GMC Sierra code?
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Frequently Asked Questions about C0890 2018 GMC Sierra Code
1. What does the OBDII code C0890 mean on a 2018 GMC Sierra?
The code C0890 indicates an issue with the Control Module Voltage Reference Output 3 Circuit, meaning the voltage reference signal to certain components is out of range or malfunctioning.
2. What are common symptoms of code C0890 in a 2018 GMC Sierra?
Symptoms may include illuminated warning lights (such as the Check Engine Light or ABS light), malfunctioning sensors, erratic vehicle behavior, or failure of related systems.
3. What causes the C0890 code to appear on a 2018 GMC Sierra?
Common causes include damaged wiring, a short or open in the voltage reference circuit, a faulty sensor, or a failing control module.
4. Can a bad ground connection trigger the C0890 code?
Yes, a poor or corroded ground connection can disrupt the voltage reference circuit, leading to the C0890 code.
5. How is the C0890 code diagnosed on a 2018 GMC Sierra?
Diagnosis involves using a scan tool to confirm the code, inspecting the voltage reference circuit wiring for damage, checking connectors for corrosion, and testing the sensors and control module for proper function.
6. Can I drive my 2018 GMC Sierra with a C0890 code?
While it might be possible to drive, the code indicates a potential issue with critical systems, so driving is not recommended until the problem is resolved.
7. What tools are needed to fix the C0890 code on a 2018 GMC Sierra?
A scan tool, a multimeter for checking voltage and continuity, and wiring repair tools are typically needed to diagnose and fix the issue.
8. How much does it cost to repair the C0890 code?
Repair costs vary depending on the root cause but can range from $50 for a simple wiring repair to $500 or more if a control module needs replacement.
9. Can a faulty sensor cause the C0890 code in a 2018 GMC Sierra?
Yes, a malfunctioning sensor that relies on the Voltage Reference Output 3 Circuit can trigger the code.
10. Is the C0890 code covered under warranty for a 2018 GMC Sierra?
It may be covered if the vehicle is still under the manufacturer’s powertrain or emissions warranty. Check with your dealership for confirmation.
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