AutoCodes – Chevrolet – P0698 Chevrolet

P0698 Chevrolet 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 Chevrolet 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.

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Code Popularity 4,349

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 17, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0698 Chevrolet Description

The Engine Control Module (ECM) has four (4) internal 5 Volt reference circuits (Some models have two (2) internal 5 Volt reference circuits). Each internal reference circuit provides external 5 Volt reference circuits for more than one sensor. A short to ground or short to voltage on one external 5 Volt reference circuit can affect all the components connected to the same internal 5 Volt reference circuit. The Diagnostic Trouble Code (DTC) will be set when the ECM detects a lower than the expected voltage on any of the 5 Volt reference circuits for greater than 0.5 s.

OBDII Code P0698 Chevrolet - 5V Reference 3 Circuit Low Voltage - AutoCodes.com — P0698 Chevrolet Code - 5V Reference 3 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0698 Chevrolet?

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 Chevrolet?

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

Disconnecting one component at a time from the affected 5 Volt reference circuit while observing the scan tool 5 Volt Reference Circuit Status parameter may help locate the fault. The scan tool parameter will change from Malfunction to OK when the source of the fault is disconnected. If all 5 Volt reference components have been disconnected and a fault is still indicated, the fault may exist in the wiring harness.

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 Chevrolet 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 Chevrolet code?

Need more information on how to fix the P0698 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0698 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

P0698 2014 Chevrolet Silverado — 5V Reference 3 Circuit Low Voltage
P0698 2015 Chevrolet Silverado — 5V Reference 3 Circuit Low Voltage
P0698 2016 Chevrolet Silverado — 5V Reference 3 Circuit Low Voltage
P0698 2017 Chevrolet Silverado — 5V Reference 3 Circuit Low Voltage
P0698 2018 Chevrolet Silverado — 5V Reference 3 Circuit Low Voltage

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 P0698 Chevrolet Code

1. What does the OBDII code P0698 mean on a Chevrolet?

P0698 indicates a low voltage issue in the 5V Reference 3 Circuit, which is responsible for providing a steady 5-volt signal to certain sensors in the vehicle.

2. What are the common symptoms of P0698 on a Chevrolet?

Symptoms may include a check engine light, poor engine performance, erratic sensor readings, or difficulty starting the vehicle.

3. What causes the P0698 code to appear on a Chevrolet?

Common causes include a faulty sensor, damaged wiring or connectors in the 5V reference circuit, a short to ground, or a malfunctioning powertrain control module (PCM).

4. Can I drive my Chevrolet with a P0698 code?

Driving with this code is not recommended, as it can lead to erratic engine behavior or further damage to electrical components.

5. How do I diagnose the P0698 code on a Chevrolet?

Start by inspecting the wiring and connectors for damage or corrosion, then use a multimeter to check for proper voltage in the 5V reference circuit. If necessary, test individual sensors or the PCM.

6. Which sensors use the 5V reference circuit in a Chevrolet?

The 5V reference circuit typically powers sensors like the throttle position sensor (TPS), manifold absolute pressure (MAP) sensor, and camshaft position sensor, among others.

7. What tools are needed to troubleshoot the P0698 code?

Youâ€™ll need an OBDII scan tool, a multimeter, and possibly a wiring diagram for your specific Chevrolet model.

8. How much does it cost to repair a P0698 code on a Chevrolet?

Costs vary depending on the issue. Replacing a damaged sensor might cost $100-$300, while repairing wiring or connectors could be less. A PCM replacement may cost over $500.

9. Can a failing PCM cause the P0698 code on a Chevrolet?

Yes, a malfunctioning PCM can cause this code, but itâ€™s less common. The PCM should be tested only after ruling out sensors, wiring, and connectors.

10. How can I prevent the P0698 code from reoccurring on my Chevrolet?

Regularly inspect and maintain the vehicleâ€™s wiring and connectors, avoid aftermarket modifications that might interfere with the 5V reference circuit, and promptly address any sensor issues.