AutoCodes – Generic – P06A6

P06A6 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 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 14,150
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 23, 2022
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Code P06A6 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 - 5V Reference 1 Performance - AutoCodes.com
P06A6 Code - 5V Reference 1 Performance

What are the Possible Causes of the DTC P06A6?

  • 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?

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 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 code?

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Information for Specific Makes

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 Code

1. What is OBDII code P06A6?

OBDII code P06A6 refers to "5V Reference 1 Performance," indicating an issue with the 5-volt reference circuit for certain sensors in the vehicle.

2. What are common symptoms of OBDII code P06A6?

Common symptoms of OBDII code P06A6 include engine stalling, rough idling, poor acceleration, and the illumination of the Check Engine Light on the dashboard.

3. What are possible causes of OBDII code P06A6?

Possible causes of OBDII code P06A6 include a faulty 5V reference circuit, damaged wiring or connectors related to the circuit, or a malfunctioning sensor that relies on the 5-volt reference signal.

4. How can I diagnose OBDII code P06A6?

Diagnosing OBDII code P06A6 typically involves using a diagnostic scanner to read the code, checking the related sensors and wiring for any visible damage, and testing the voltage output of the 5V reference circuit with a multimeter.

5. What should I do if I encounter OBDII code P06A6?

If you encounter OBDII code P06A6, it is recommended to address the issue promptly to prevent further damage to the vehicle. Consider seeking assistance from a qualified mechanic to diagnose and repair the underlying problem.

6. Can I drive my vehicle with OBDII code P06A6?

It is not advisable to drive your vehicle with OBDII code P06A6 present, as it can lead to potential performance issues and further damage. It's best to have the problem diagnosed and fixed before continuing to drive the vehicle.

7. How much does it cost to repair OBDII code P06A6?

The cost of repairing OBDII code P06A6 can vary depending on the underlying cause of the issue. Repair costs may include replacing damaged sensors, repairing wiring, or addressing issues with the 5V reference circuit, so it's best to consult with a mechanic for an accurate estimate.

8. Can a DIY enthusiast fix OBDII code P06A6 at home?

While some DIY enthusiasts may have the skills to diagnose and potentially fix OBDII code P06A6, it is generally recommended to seek professional help due to the complexity of the electrical systems involved. Incorrect repairs can lead to more problems down the line.

9. Is OBDII code P06A6 a serious issue?

OBDII code P06A6 should be taken seriously, as it can impact the performance and drivability of the vehicle. Ignoring the issue may lead to further damage or safety concerns, so it's best to address the problem promptly.

10. How can I prevent OBDII code P06A6 from recurring?

To prevent OBDII code P06A6 from recurring, it's essential to address the root cause of the issue thoroughly. Regular maintenance checks, timely repairs of sensor-related problems, and ensuring proper wiring connections can help prevent the code from reappearing.

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