P06A4 2017 GMC Sierra Code - 5 Volt Reference 4 Circuit Low Voltage
Quick Answer
The P06A4 diagnostic trouble code (DTC) in a 2017 GMC Sierra indicates that the 5-volt reference circuit 4 is experiencing low voltage. Common causes include Faulty sensor connected to the 5-volt reference circuit, Damaged wiring harness, Corroded connector. 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 2017 GMC Sierra indicates 5 Volt Reference 4 Circuit Low Voltage.
- Common causes
- Common causes include Faulty sensor connected to the 5-volt reference circuit, Damaged wiring harness, Corroded connector.
- 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 P06A4 2017 GMC Sierra Description
The P06A4 diagnostic trouble code (DTC) in a 2017 GMC Sierra indicates that the 5-volt reference circuit 4 is experiencing low voltage. The 5-volt reference circuit is a crucial part of the vehicle's electronic control system, providing a stable 5-volt power supply to various sensors and components. When the voltage in this circuit drops below the specified range, it can lead to erratic sensor readings, improper engine performance, and potential drivability issues.
Common Causes of P06A4 2017 GMC Sierra
- Faulty sensor connected to the 5-volt reference circuit
- Damaged wiring harness
- Corroded connector
- Power supply issues
Symptoms of P06A4 2017 GMC Sierra
- Rough idling
- Stalling
- Poor acceleration
- Engine misfires
- Check engine light illuminated
How to Fix P06A4 2017 GMC Sierra
- Begin by conducting a thorough inspection of the 5-volt reference circuit, including all sensors and wiring connections.
- Test the sensors connected to the circuit to identify any faulty components.
- Check for any damaged wiring or corroded connectors that may be causing the low voltage issue.
- Replace any faulty sensors or repair damaged wiring as needed to restore proper voltage to the circuit.
- Clear the DTC from the vehicle's computer system and perform a test drive to ensure the issue has been resolved.
Cost to Fix P06A4 2017 GMC Sierra
The typical repair costs for addressing a P06A4 code in a 2017 GMC Sierra can vary depending on the specific cause of the low voltage issue. On average, the parts and labor for this repair could range from $150 to $500. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to check with local auto repair shops for a more accurate estimate based on your specific circumstances.
Tech Notes for P06A4 2017 GMC Sierra
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
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