P0698 2015 GMC Sierra Code - 5V Reference 3 Circuit Low Voltage
Quick Answer
The Engine Control Module (ECM) has four (4) internal 5 Volt reference circuits (Some models have two (2) internal 5 Volt reference circuits). Common causes include Faulty Sensor on 5 Volt circuit, Sensor on 5 Volt circuit harness is open or shorted, Sensor on 5 Volt 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
- P0698 2015 GMC Sierra indicates 5V Reference 3 Circuit Low Voltage.
- Common causes
- Common causes include Faulty Sensor on 5 Volt circuit, Sensor on 5 Volt circuit harness is open or shorted, Sensor on 5 Volt 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 P0698 2015 GMC Sierra Description
What are the Possible Causes of the DTC P0698 2015 GMC Sierra?
- Faulty Sensor on 5 Volt circuit
- Sensor on 5 Volt circuit harness is open or shorted
- Sensor on 5 Volt circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0698 2015 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
The 5 Volt reference 3 circuit provides 5 Volt to the following sensors: (Some models may have different sensors, please consult the factory service manual for the list of sensors for your model and year)
- Accelerator pedal position sensor 2
- Manifold absolute pressure sensor
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0698 2015 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 P0698 2015 GMC Sierra code?
Need more information on how to fix the P0698 2015 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0698 2015 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0698 2015 GMC Sierra Code
1. What does the OBDII code P0698 mean for a 2015 GMC Sierra?
P0698 indicates a low voltage issue in the 5-volt reference circuit 3, which supplies power to various sensors.
2. What are the common symptoms of code P0698 in a 2015 GMC Sierra?
Symptoms may include the check engine light, poor engine performance, difficulty starting, or erratic sensor readings.
3. What causes the P0698 code to appear?
Common causes include a short or open in the 5-volt reference circuit, a faulty sensor, damaged wiring, or a malfunctioning engine control module (ECM).
4. How is the P0698 code diagnosed?
A mechanic will check the wiring and connectors in the 5-volt reference circuit, test related sensors, and use a multimeter to measure voltage levels.
5. Can a faulty sensor trigger the P0698 code?
Yes, a defective sensor drawing excessive current or causing a short can lead to this code.
6. Is the P0698 code safe to drive with?
Driving with this code is not recommended as it can result in poor engine performance and may cause further damage.
7. How do you fix the P0698 code on a 2015 GMC Sierra?
Repairs may involve fixing or replacing damaged wiring, cleaning corroded connectors, replacing a faulty sensor, or reprogramming/updating the ECM.
8. Which sensors are linked to the 5-volt reference circuit 3 in a 2015 GMC Sierra?
Specific sensors vary, but they often include the throttle position sensor (TPS), manifold absolute pressure (MAP) sensor, or other engine management sensors.
9. Can a bad ECM cause the P0698 code?
Yes, a malfunctioning ECM can fail to supply the proper 5-volt reference signal, triggering this code.
10. How much does it typically cost to fix the P0698 code?
Repair costs can range from $100 to $500 or more, depending on whether the issue is with wiring, sensors, or the ECM.
Discuss the causes and fixes for P0698 2015 GMC Sierra OBDII Code
Code P0698 2015 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
