P06A4 2015 GMC Sierra Code - 5 Volt Reference 4 Circuit Low Voltage
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
- P06A4 2015 GMC Sierra indicates 5 Volt Reference 4 Circuit Low Voltage.
- 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.
Code P06A4 2015 GMC Sierra Description
What are the Possible Causes of the DTC P06A4 2015 GMC Sierra?
- 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 P06A4 2015 GMC Sierra?
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.
Code Tech Notes
The 5 Volt reference 4 circuit provides 5 Volt to the following sensors: (Some models may have different sensors, please consult the factory service manual for the list of sensors for your model and year)
- Accelerator pedal position sensor 1
- Throttle position sensor
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P06A4 2015 GMC Sierra 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 P06A4 2015 GMC Sierra code?
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Need Help with the Code?
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Frequently Asked Questions about P06A4 2015 GMC Sierra Code
1. What are the common symptoms of OBDII code P06A4 in a 2015 GMC Sierra?
- Common symptoms include engine stalling, rough idling, poor acceleration, and illuminated Check Engine Light.
2. What does the OBDII code P06A4 indicate in a 2015 GMC Sierra?
- The code P06A4 indicates a low voltage condition in the 5 Volt Reference 4 circuit of the vehicle.
3. What are the possible causes of OBDII code P06A4 in a 2015 GMC Sierra?
- Possible causes include a faulty 5 Volt Reference 4 circuit, damaged wiring or connectors, issues with the ECM, or a short circuit.
4. How can I diagnose the OBDII code P06A4 in my 2015 GMC Sierra?
- Diagnosis involves using a scan tool to retrieve the code, inspecting the wiring and connectors for damage, and testing the voltage in the 5 Volt Reference 4 circuit.
5. Can a DIY enthusiast repair OBDII code P06A4 in a 2015 GMC Sierra?
- While basic checks like inspecting wiring and connectors can be done by a DIY enthusiast, diagnosing and repairing the root cause may require professional help.
6. Is it safe to drive my 2015 GMC Sierra with OBDII code P06A4?
- It's not recommended to drive the vehicle with code P06A4 as it can lead to further damage and potentially unsafe driving conditions.
7. How much does it typically cost to repair OBDII code P06A4 in a 2015 GMC Sierra?
- The cost of repairs can vary depending on the root cause, but it's advisable to budget for diagnostic fees, parts replacement costs, and labor charges.
8. Can resetting the OBDII code P06A4 in my 2015 GMC Sierra make it go away?
- Resetting the code may temporarily turn off the Check Engine Light, but if the underlying issue is not fixed, the code is likely to reappear.
9. Are there any preventive measures to avoid OBDII code P06A4 in a 2015 GMC Sierra?
- Regular maintenance, timely repairs of wiring issues, and ensuring proper ECM function can help prevent the recurrence of code P06A4.
10. Will OBDII code P06A4 affect the overall performance of my 2015 GMC Sierra?
- Yes, code P06A4 can affect engine performance, fuel efficiency, and overall drivability of the vehicle if left unresolved.
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