P06A6 2015 GMC Sierra 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 2015 GMC Sierra 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.
Code P06A6 2015 GMC Sierra Description
What are the Possible Causes of the DTC P06A6 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 P06A6 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P06A6 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 P06A6 2015 GMC Sierra code?
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Frequently Asked Questions about P06A6 2015 GMC Sierra Code
What does OBDII code P06A6 mean on a 2015 GMC Sierra?
1. P06A6 indicates an issue with the 5V Reference 1 circuit, which supplies a stable 5-volt signal to various engine sensors. It’s related to a performance problem in this reference voltage system. 2.
What are the common symptoms of code P06A6 on a 2015 GMC Sierra?
Symptoms may include the check engine light turning on, erratic sensor readings, reduced engine performance, rough idling, or potential issues with starting the vehicle. 3.
What causes code P06A6 on a 2015 GMC Sierra?
Common causes include a short or open circuit in the 5V reference wiring, a faulty sensor drawing excessive current, or a malfunctioning powertrain control module (PCM). 4.
Can a damaged sensor trigger code P06A6 in a 2015 GMC Sierra?
Yes, a damaged or malfunctioning sensor connected to the 5V reference circuit can cause this code by overloading the circuit or providing incorrect feedback. 5.
How do I troubleshoot code P06A6 on a 2015 GMC Sierra?
Start by checking the wiring and connectors for the 5V reference circuit. Inspect for damage or corrosion and test voltage at the affected sensors to ensure a stable 5V supply. 6.
Can clearing the code P06A6 fix the problem on a 2015 GMC Sierra?
Clearing the code without addressing the root cause will not fix the issue. The code will likely return until the underlying problem is resolved. 7.
Is a faulty PCM a common cause of P06A6 on a 2015 GMC Sierra?
While less common, a faulty PCM can cause this code if internal circuits fail to provide a consistent 5V reference signal. This should be checked after eliminating simpler causes. 8.
What sensors rely on the 5V reference circuit in a 2015 GMC Sierra?
Sensors such as the throttle position sensor (TPS), manifold absolute pressure (MAP) sensor, and crankshaft position sensor depend on the 5V reference circuit. 9.
How much does it cost to repair code P06A6 on a 2015 GMC Sierra?
Repair costs vary depending on the issue. Simple wiring repairs may cost $100–$200, while replacing a sensor or PCM could cost $300–$1,200 or more. 10.
Can driving with code P06A6 damage my 2015 GMC Sierra?
Driving with this code can lead to poor engine performance or damage to other components if unresolved. It’s best to address the issue promptly to avoid further complications.
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