AutoCodes – KIA – P06A3 KIA

P06A3 KIA 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 KIA 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 1,273

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 May 08, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P06A3 KIA 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 KIA - Sensor Reference Voltage 'D' Circuit/Open - AutoCodes.com — P06A3 KIA Code - Sensor Reference Voltage 'D' Circuit/Open

What does this mean?

What are the Possible Causes of the DTC P06A3 KIA?

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 KIA?

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 KIA 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 KIA 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 KIA Code

1. What are common symptoms of OBDII code P06A3 in a KIA vehicle?

- Common symptoms include engine stalling, rough idling, poor fuel efficiency, and in some cases, the vehicle may not start.

2. What does the OBDII code P06A3 in a KIA indicate?

- The code P06A3 indicates a fault in the Sensor Reference Voltage 'D' Circuit/Open in the vehicle's electronic control system.

3. What are the possible causes of the Sensor Reference Voltage 'D' Circuit/Open fault in a KIA?

- Possible causes include a faulty sensor, damaged wiring or connectors, a failed PCM (Powertrain Control Module), or a malfunctioning voltage regulator.

4. How can I diagnose the Sensor Reference Voltage 'D' Circuit/Open issue in my KIA?

- Diagnosing the issue involves checking the sensor for proper operation, inspecting the wiring and connectors for damage, and testing the voltage regulator and PCM for faults.

5. Can driving with the OBDII code P06A3 cause further damage to my KIA?

- Continued driving with this code may lead to poor engine performance, reduced fuel efficiency, and potential damage to other engine components, so it is advisable to address the issue promptly.

6. How can I repair the Sensor Reference Voltage 'D' Circuit/Open fault in my KIA?

- Repairing the issue typically involves replacing the faulty sensor, repairing or replacing damaged wiring, connectors, or the PCM, and ensuring proper voltage regulation in the system.

7. Is it safe to continue driving my KIA with the Sensor Reference Voltage 'D' Circuit/Open fault?

- It is not recommended to drive the vehicle with this fault as it can lead to engine performance issues and potentially cause further damage to the vehicle.

8. Can I reset the OBDII code P06A3 in my KIA without fixing the underlying issue?

- While you can clear the code with an OBDII scanner, it is important to address the underlying problem to prevent the issue from recurring and potentially causing more significant damage.

9. How much does it typically cost to repair the Sensor Reference Voltage 'D' Circuit/Open fault in a KIA?

- Repair costs can vary depending on the specific cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

10. Can a DIY enthusiast fix the Sensor Reference Voltage 'D' Circuit/Open fault in a KIA?

- While some simple repairs like checking and replacing sensors or fuses can be done by DIY enthusiasts, diagnosing and repairing complex electrical issues may require professional expertise.