AutoCodes – Chevrolet – P06A6 2015 Chevrolet Silverado

P06A6 2015 Chevrolet Silverado Code - 5V Reference 1 Performance

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: P06A6 2015 Chevrolet Silverado indicates 5V Reference 1 Performance.
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 307

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 23, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P06A6 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 short to voltage or ground on any of the 5 Volt reference circuits for greater than 0.5 s.

OBDII Code P06A6 2015 Chevrolet Silverado - 5V Reference 1 Performance - AutoCodes.com — P06A6 2015 Chevrolet Silverado Code - 5V Reference 1 Performance

What does this mean?

What are the Possible Causes of the DTC P06A6 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 P06A6 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P06A6 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 P06A6 2015 Chevrolet Silverado code?

Need more information on how to fix the P06A6 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P06A6 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 P06A6 2015 Chevrolet Silverado Code

1. What does the P06A6 code mean on a 2015 Chevrolet Silverado?

The P06A6 code indicates a "5V Reference 1 Performance" issue, meaning the vehicle's Powertrain Control Module (PCM) has detected an irregularity in the 5-volt reference circuit that powers various engine sensors.

2. What are the common symptoms of a P06A6 code on a Chevrolet Silverado?

Symptoms may include poor engine performance, unexpected stalling, the Check Engine Light illuminating, erratic sensor readings, or difficulty starting the vehicle.

3. What causes the P06A6 code to appear?

Common causes include a faulty PCM, damaged wiring or connectors in the 5-volt reference circuit, a short circuit, or a malfunctioning sensor drawing too much current from the circuit.

4. Can a bad sensor trigger the P06A6 code?

Yes, a faulty sensor that relies on the 5-volt reference circuit, such as the throttle position sensor or manifold absolute pressure sensor, can cause this code.

5. How can I diagnose the P06A6 code?

Begin by visually inspecting the wiring and connectors in the 5-volt reference circuit for damage or corrosion, check sensor outputs with a multimeter, and verify the PCM's functionality using advanced diagnostic tools.

6. Is it safe to drive with a P06A6 code on my Silverado?

Driving with this code is not recommended, as it can lead to erratic engine behavior, reduced performance, or stalling, which may compromise safety.

7. How do I fix the P06A6 code on a 2015 Chevrolet Silverado?

Repairs may include replacing damaged wiring, fixing corroded connectors, replacing a failed sensor, or, in rare cases, reprogramming or replacing the PCM.

8. How much does it cost to fix the P06A6 code?

Repair costs can vary widely, from $100â€“$200 for minor wiring repairs to $500â€“$1,500 if a PCM replacement is required. Diagnosis fees may also apply.

9. Can a low battery voltage cause the P06A6 code?

Yes, a weak or failing battery can cause voltage irregularities in the 5-volt reference circuit, potentially triggering this code.

10. Do I need to clear the P06A6 code after repairs?

Yes, after completing repairs, the code should be cleared with a diagnostic scanner to ensure the issue is resolved and the Check Engine Light does not remain illuminated.