AutoCodes – Hyundai – P06A5 Hyundai

P06A5 Hyundai Code - Sensor Reference Voltage 'D' Circuit High

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: P06A5 Hyundai indicates Sensor Reference Voltage 'D' Circuit High.
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 4,854

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 P06A5 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 P06A5 Hyundai - Sensor Reference Voltage 'D' Circuit High - AutoCodes.com — P06A5 Hyundai Code - Sensor Reference Voltage 'D' Circuit High

What does this mean?

What are the Possible Causes of the DTC P06A5 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 P06A5 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 P06A5 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 P06A5 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 P06A5 Hyundai Code

1. What does the OBDII code P06A5 mean on a Hyundai?

P06A5 indicates a high voltage issue in the Sensor Reference Voltage 'D' circuit, meaning the voltage exceeds the expected range.

2. What are the common symptoms of code P06A5 in a Hyundai?

Symptoms may include an illuminated check engine light, poor engine performance, inconsistent idling, or difficulty starting the engine.

3. What causes the P06A5 code to trigger in a Hyundai?

Common causes include a faulty sensor, damaged wiring or connectors in the Sensor Reference Voltage 'D' circuit, or a malfunctioning engine control module (ECM).

4. Can I drive my Hyundai with the P06A5 code?

While the car may still be drivable, itâ€™s not recommended as it could lead to further damage or unsafe driving conditions depending on the affected sensor.

5. How do I diagnose the P06A5 code on my Hyundai?

Diagnose the issue by using a scan tool to confirm the code, inspecting the wiring and connectors for damage, and testing the voltage output from the ECM.

6. What sensors are associated with the Sensor Reference Voltage 'D' circuit?

This circuit typically supplies voltage to sensors like the throttle position sensor, MAP sensor, or other engine-related sensors.

7. What tools are needed to fix the P06A5 code on my Hyundai?

Youâ€™ll need a multimeter for voltage testing, a diagnostic scan tool, and possibly wiring repair tools or replacement parts for damaged components.

8. How is the P06A5 code fixed in a Hyundai?

Repairs may include replacing a faulty sensor, repairing damaged wiring or connectors, or reprogramming or replacing the ECM if itâ€™s defective.

9. How much does it cost to fix the P06A5 code in a Hyundai?

The cost varies depending on the issue, but sensor replacements typically range from $100 to $300, while ECM repairs or replacements can cost $500 or more.

10. Can a weak battery cause the P06A5 code in a Hyundai?

A weak or failing battery may contribute to voltage irregularities, but itâ€™s unlikely to be the sole cause of this specific high voltage code.