P0A3F 2016 Chevrolet Silverado Code - Drive Motor Position Sensor Circuit
Quick Answer
The generator control module, also called the starter/generator control module, is comprised of the following three control modules: the hybrid/EV powertrain control module 1, 14 V power module, and the drive motor control module. Common causes include Faulty Starter/Generator, Starter/Generator harness is open or shorted, Starter/Generator 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
- P0A3F 2016 Chevrolet Silverado indicates Drive Motor Position Sensor Circuit.
- Common causes
- Common causes include Faulty Starter/Generator, Starter/Generator harness is open or shorted, Starter/Generator 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 P0A3F 2016 Chevrolet Silverado Description
The generator control module monitors the angular position, speed, and direction of the starter generator rotor based upon the signals of the resolver-type motor position sensor. The position sensor contains a drive coil, two driven coils, and an irregular-shaped metallic rotor. The metallic rotor is mechanically attached to the shaft of the starter generator.
At ignition ON, an AC voltage, 10 kHz excitation signal is output to the drive coil. The drive coil excitation signal creates a magnetic field surrounding the two driven coils and the irregular-shaped rotor. The generator control module then monitors the two driven coil circuits for a return signal. The position of the irregular metallic rotor causes the magnetically induced return signals of the driven coils to vary in size and shape. A comparison of the two driven coils signals allows the generator control module to determine the exact position, speed, and direction of the starter generator rotor. The position sensor is a non-serviceable part of the starter generator.
What are the Possible Causes of the DTC P0A3F 2016 Chevrolet Silverado?
- Faulty Starter/Generator
- Starter/Generator harness is open or shorted
- Starter/Generator circuit poor electrical connection
- Faulty Starter/Generator Control Module
How to Fix the DTC P0A3F 2016 Chevrolet Silverado?
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 P0A3F 2016 Chevrolet Silverado 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.
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Frequently Asked Questions about P0A3F 2016 Chevrolet Silverado Code
1. What does the OBDII code P0A3F mean on a 2016 Chevrolet Silverado?
P0A3F refers to a fault in the drive motor position sensor circuit, which monitors the position of the motor's rotor to ensure proper operation.
2. What are the common symptoms of P0A3F in a 2016 Chevrolet Silverado?
Symptoms include reduced power, limited acceleration, difficulty driving in electric or hybrid mode (if applicable), and possibly an illuminated check engine light.
3. What causes the P0A3F code to appear?
The code can be triggered by a faulty drive motor position sensor, damaged wiring or connectors in the sensor circuit, or issues with the hybrid/EV control module.
4. Can I drive my 2016 Chevrolet Silverado with the P0A3F code?
Driving with this code is not recommended as it can lead to reduced performance or further damage to the vehicle’s hybrid or electric system components.
5. How do I diagnose the P0A3F code?
Diagnosis involves scanning the vehicle with an OBDII tool, inspecting the wiring and connectors for damage, and testing the drive motor position sensor for proper function.
6. How can I fix the P0A3F code on my 2016 Chevrolet Silverado?
Repairs may include replacing the drive motor position sensor, repairing or replacing damaged wiring, or reprogramming/updating the hybrid/EV control module.
7. Is the P0A3F code covered under warranty for a 2016 Chevrolet Silverado?
It depends on the vehicle’s warranty status and coverage for hybrid or electric components. Check with your dealership for specifics.
8. How much does it cost to repair the P0A3F code?
Repair costs vary depending on the exact issue but can range from $200 to $800, especially if the sensor or associated wiring needs replacement.
9. Can a weak battery cause the P0A3F code?
A weak hybrid or auxiliary battery can contribute to drivetrain issues, but the P0A3F code specifically relates to the motor position sensor circuit.
10. Will clearing the P0A3F code fix the issue?
Clearing the code may turn off the check engine light temporarily, but the underlying issue must be resolved to prevent the code from returning.
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