AutoCodes – Chevrolet – P06A5 2015 Chevrolet Silverado

P06A5 2015 Chevrolet Silverado Code - 5 Volt Reference 4 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: P06A5 2015 Chevrolet Silverado indicates 5 Volt Reference 4 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 510

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P06A5 2015 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 P06A5 2015 Chevrolet Silverado - 5 Volt Reference 4 Circuit High Voltage - AutoCodes.com — P06A5 2015 Chevrolet Silverado Code - 5 Volt Reference 4 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P06A5 2015 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 P06A5 2015 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.

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 4 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 1
- Throttle position sensor

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P06A5 2015 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 P06A5 2015 Chevrolet Silverado code?

Need more information on how to fix the P06A5 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P06A5 2015 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 P06A5 2015 Chevrolet Silverado Code

1. What does the OBDII code P06A5 mean on a 2015 Chevrolet Silverado?

P06A5 indicates a "5 Volt Reference 4 Circuit High Voltage," which means the ECM has detected an abnormally high voltage in one of the 5-volt reference circuits used to power certain sensors.

2. What are the common symptoms of the P06A5 code on a 2015 Chevrolet Silverado?

Common symptoms include the check engine light illuminating, erratic sensor readings, poor engine performance, stalling, and possibly difficulty starting the vehicle.

3. What causes the P06A5 code to appear on a 2015 Chevrolet Silverado?

This code is typically caused by a short to voltage in the reference circuit, a damaged wiring harness, a faulty sensor, a malfunctioning ECM, or corrosion in the electrical connections.

4. How do I diagnose the P06A5 code on a 2015 Chevrolet Silverado?

Start by inspecting the 5-volt reference 4 circuit wiring and connectors for damage or corrosion, then test the affected sensors for proper operation, and check the ECM for internal faults if no external issues are found.

5. Can a faulty sensor cause the P06A5 code on a 2015 Chevrolet Silverado?

Yes, a malfunctioning sensor that uses the 5-volt reference 4 circuit can cause this code by creating abnormal voltage readings.

6. How serious is the P06A5 code on a 2015 Chevrolet Silverado?

This code can lead to significant drivability issues, so it should be addressed promptly to prevent further damage or unsafe driving conditions.

7. Can I drive my 2015 Chevrolet Silverado with the P06A5 code?

It’s not recommended to drive with this code active, as it can cause poor engine performance, stalling, or other unsafe conditions.

8. What repairs are needed to fix the P06A5 code on a 2015 Chevrolet Silverado?

Repairs may include fixing or replacing damaged wiring or connectors, replacing a faulty sensor, cleaning corroded connections, or in rare cases, replacing the ECM.

9. How much does it cost to repair the P06A5 code on a 2015 Chevrolet Silverado?

The cost depends on the root cause. Sensor replacement can range from $50 to $300, while wiring repairs may cost $100 to $500. ECM replacement is more expensive, typically costing $500 to $1,500.

10. Can a dead battery cause the P06A5 code on a 2015 Chevrolet Silverado?

While a dead battery is unlikely to directly cause this code, voltage fluctuations from a failing battery or alternator can sometimes contribute to electrical issues.