AutoCodes – Hyundai – P06A3 Hyundai

P06A3 Hyundai Code - Sensor Reference Voltage 'D' Circuit/Open

Quick Answer

The control module has internal 5-volt reference buses called "5-volt reference". Common causes include Faulty Engine Control Module (ECM), ECM harness is open or shorted, ECM 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: P06A3 Hyundai indicates Sensor Reference Voltage 'D' Circuit/Open.
Common causes: Common causes include Faulty Engine Control Module (ECM), ECM harness is open or shorted, ECM 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 1,370

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 May 08, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P06A3 Hyundai Description

The control module has internal 5-volt reference buses called "5-volt reference". Each reference bus provided 5-volt reference circuit for more than one sensor. Therefore, a fault condition on one 5-volt reference circuit will affect the other 5-volt reference circuits connected to the reference bus. The control module monitors the voltage on the 5-volt reference buses.

OBDII Code P06A3 Hyundai - Sensor Reference Voltage 'D' Circuit/Open - AutoCodes.com — P06A3 Hyundai Code - Sensor Reference Voltage 'D' Circuit/Open

What does this mean?

What are the Possible Causes of the DTC P06A3 Hyundai?

Faulty Engine Control Module (ECM)
ECM harness is open or shorted
ECM circuit poor electrical connection
Shorted sensor on 5 volt circuit

How to Fix the DTC P06A3 Hyundai?

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 P06A3 Hyundai 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 P06A3 Hyundai code?

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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 P06A3 Hyundai Code

1. What are the common symptoms of OBDII code P06A3 on a Hyundai related to the Sensor Reference Voltage 'D' Circuit/Open?

The common symptoms include check engine light illumination, poor engine performance, rough idling, and potential stalling.

2. What are the possible causes of the Sensor Reference Voltage 'D' Circuit/Open code P06A3 in a Hyundai?

The code P06A3 can be triggered by issues such as a faulty sensor, damaged wiring or connectors, a malfunctioning PCM, or a short circuit in the sensor reference voltage 'D' circuit.

3. How can I diagnose the Sensor Reference Voltage 'D' Circuit/Open code P06A3 in my Hyundai?

Diagnosing this code typically involves using an OBDII scanner to retrieve the fault code, inspecting the sensor and its wiring for visible damage, testing the sensor's voltage, and checking for any loose connections.

4. Can I continue driving my Hyundai with the OBDII code P06A3 present?

It is not recommended to continue driving your Hyundai with the P06A3 code present, as it can lead to further damage to the engine and its components. It's best to address the issue promptly.

5. How can I repair the Sensor Reference Voltage 'D' Circuit/Open code P06A3 in my Hyundai?

Repairing the P06A3 code may involve replacing the faulty sensor, repairing or replacing damaged wiring or connectors, resetting the PCM, or addressing any short circuits in the sensor reference voltage 'D' circuit.

6. Is it possible to reset the OBDII code P06A3 in my Hyundai without fixing the underlying issue?

While you can clear the fault code with an OBDII scanner, the check engine light is likely to come back on if the root cause of the code (such as a faulty sensor) is not addressed.

7. Can a DIY enthusiast fix the Sensor Reference Voltage 'D' Circuit/Open code P06A3 in a Hyundai?

Depending on your experience and tools available, some DIY enthusiasts may be able to diagnose and repair the P06A3 code. However, if you're unsure, it's recommended to seek professional help.

8. How much does it typically cost to fix the OBDII code P06A3 in a Hyundai at a mechanic or dealership?

The cost of fixing the P06A3 code can vary depending on the specific issue causing the code, the labor rates of the mechanic or dealership, and any parts that need to be replaced. It's best to get a diagnostic and estimate for an accurate cost.

9. Are there any preventative maintenance tips to avoid the Sensor Reference Voltage 'D' Circuit/Open code P06A3 in a Hyundai?

Regularly inspecting your vehicle's sensors, wiring, and connectors for any signs of wear or damage can help prevent issues like the P06A3 code. Additionally, following the manufacturer's recommended maintenance schedule can help keep your vehicle in good condition.

10. How long does it typically take to repair the OBDII code P06A3 in a Hyundai?

The repair time for the P06A3 code can vary depending on the complexity of the issue and the availability of parts. It's best to consult with your mechanic for an estimate on the repair time.