AutoCodesChevrolet – P0699 2017 Chevrolet Silverado

P0699 2017 Chevrolet Silverado Code - 5V Reference 3 Circuit High 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
P0699 2017 Chevrolet Silverado indicates 5V Reference 3 Circuit High 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 274
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 17, 2022
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Code P0699 2017 Chevrolet Silverado 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 higher than the expected voltage on any of the 5 Volt reference circuits for greater than 0.5 s.
OBDII Code P0699 2017 Chevrolet Silverado - 5V Reference 3 Circuit High Voltage - AutoCodes.com
P0699 2017 Chevrolet Silverado Code - 5V Reference 3 Circuit High Voltage

What are the Possible Causes of the DTC P0699 2017 Chevrolet Silverado?

  • 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 P0699 2017 Chevrolet Silverado?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0699 2017 Chevrolet Silverado 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 P0699 2017 Chevrolet Silverado code?

Need more information on how to fix the P0699 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P0699 2017 Chevrolet Silverado Code

1. What does the OBDII code P0699 mean on a 2017 Chevrolet Silverado?

The P0699 code indicates a "5V Reference 3 Circuit High Voltage," meaning the powertrain control module (PCM) has detected an abnormally high voltage in the 5-volt reference circuit 3.

2. What are the common symptoms of code P0699 in a 2017 Chevrolet Silverado?

Symptoms may include the check engine light turning on, poor engine performance, stalling, hard starting, or other electrical issues.

3. What causes the P0699 code in a 2017 Chevrolet Silverado?

Possible causes include a short to voltage in the 5-volt reference circuit, a faulty PCM, damaged wiring, or a malfunctioning sensor connected to the reference circuit.

4. How does the 5-volt reference circuit work in a 2017 Chevrolet Silverado?

The PCM sends a 5-volt signal to various sensors, such as the throttle position sensor or pressure sensors, allowing them to operate correctly and send accurate data back to the PCM.

5. Can a faulty sensor trigger the P0699 code in a 2017 Chevrolet Silverado?

Yes, a defective sensor connected to the 5-volt reference circuit 3 can cause the voltage to be too high, leading to the P0699 code.

6. How can I diagnose the P0699 code in my 2017 Chevrolet Silverado?

Diagnose the issue by inspecting the wiring and connectors in the 5-volt reference circuit for damage, testing the voltage at the PCM, and checking the sensors linked to the circuit.

7. Can I drive my 2017 Chevrolet Silverado with a P0699 code?

It’s not recommended to drive with this code, as it can cause engine performance issues or damage other components if left unresolved.

8. How do I fix the P0699 code in a 2017 Chevrolet Silverado?

Repairs may include fixing or replacing damaged wiring, replacing a faulty sensor, or, in rare cases, replacing the PCM.

9. How much does it cost to repair a P0699 code on a 2017 Chevrolet Silverado?

The cost varies depending on the root cause, ranging from $50 for minor wiring repairs to $500 or more if the PCM needs replacement.

10. Can a loose or corroded connector cause the P0699 code in a 2017 Chevrolet Silverado?

Yes, loose or corroded connectors in the 5-volt reference circuit can disrupt the voltage and trigger the P0699 code.

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