P06B2 2017 GMC Sierra Code - Sensor Supply Voltage Circuit High Voltage
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, the 14 V power module, and the drive motor control module. Common causes include Faulty Starter/Generator Control Module, Starter/Generator Control Module harness is open or shorted, Starter/Generator Control Module 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
- P06B2 2017 GMC Sierra indicates Sensor Supply Voltage Circuit High Voltage.
- Common causes
- Common causes include Faulty Starter/Generator Control Module, Starter/Generator Control Module harness is open or shorted, Starter/Generator Control Module 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 P06B2 2017 GMC Sierra Description
The drive motor control module uses an internal 15 V reference power supply in order to operate the drive motor sensors and processor. This fault is handled inside the generator control module and no external circuits are involved.
The Diagnostic Trouble Code (DTC) will be set when the reference voltage is greater than 18.6 V for 1 second.
What are the Possible Causes of the DTC P06B2 2017 GMC Sierra?
- Faulty Starter/Generator Control Module
- Starter/Generator Control Module harness is open or shorted
- Starter/Generator Control Module circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P06B2 2017 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 P06B2 2017 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.
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Frequently Asked Questions about P06B2 2017 GMC Sierra Code
1. What does OBDII code P06B2 mean for a 2017 GMC Sierra?
Code P06B2 indicates a high voltage issue in the sensor supply voltage circuit, which affects the electrical supply to various engine sensors.
2. What are the common symptoms of code P06B2 in a 2017 GMC Sierra?
Symptoms may include engine hesitation, reduced fuel efficiency, poor performance, and an illuminated check engine light.
3. What causes code P06B2 in a 2017 GMC Sierra?
Common causes include a faulty engine control module (ECM), damaged wiring, sensor malfunctions, or a short circuit in the sensor supply voltage system.
4. Can I drive my 2017 GMC Sierra with code P06B2 present?
Driving with this code is not recommended, as it can lead to further engine performance issues and possible damage to connected components.
5. How is code P06B2 diagnosed in a 2017 GMC Sierra?
A mechanic uses an OBDII scanner to confirm the code, then inspects the wiring, ECM, and affected sensors for faults or damage.
6. What repairs are needed to fix code P06B2 in a 2017 GMC Sierra?
Repairs may involve replacing damaged wiring, correcting sensor issues, or replacing the ECM if it’s determined to be faulty.
7. How much does it cost to fix P06B2 on a 2017 GMC Sierra?
Repair costs vary depending on the cause but can range from $150 for wiring repairs to over $1,000 for ECM replacement.
8. Can a faulty sensor trigger code P06B2 on a 2017 GMC Sierra?
Yes, a malfunctioning sensor that relies on the supply voltage can cause this code to appear.
9. What tools are needed to fix code P06B2 in a 2017 GMC Sierra?
Tools typically include an OBDII scanner, multimeter for testing wiring, and basic automotive tools for replacing components.
10. Is code P06B2 common in GMC Sierra trucks?
While not overly common, this code can occur in GMC Sierras due to electrical issues or component failures. Regular maintenance can help prevent it.
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