P06B2 2016 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 2016 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 2016 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 2016 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 2016 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 2016 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 2016 GMC Sierra Code
What does the P06B2 code mean for a 2016 GMC Sierra?
The P06B2 code indicates a "Sensor Supply Voltage Circuit High Voltage," meaning the voltage supplied to one or more sensors is higher than the acceptable range.
What are the common symptoms of the P06B2 code?
Symptoms may include a check engine light, poor engine performance, erratic sensor readings, or difficulty starting the vehicle.
What causes the P06B2 code to trigger?
Common causes include a faulty sensor, damaged wiring or connectors, a malfunctioning Engine Control Module (ECM), or a short circuit in the sensor supply voltage circuit.
How is the P06B2 code diagnosed?
A technician will use a scan tool to confirm the code, inspect the wiring and connectors for damage, and test the sensor supply voltage using a multimeter.
Can I drive my 2016 GMC Sierra with the P06B2 code?
Driving with this code is not recommended, as it can lead to poor engine performance or potential damage to other components.
How do I fix the P06B2 code on my GMC Sierra?
Repairs may include replacing a faulty sensor, repairing damaged wiring or connectors, or, in rare cases, replacing the ECM.
Which sensors are affected by the P06B2 code?
The code typically impacts sensors that rely on a specific reference voltage, such as the throttle position sensor or manifold absolute pressure sensor.
Is the P06B2 code specific to GMC vehicles?
No, the P06B2 code is a generic OBDII code that can appear in various makes and models, but the repair approach may vary slightly.
What tools are needed to repair the P06B2 code?
You may need an OBDII scanner, a multimeter, wiring diagrams, and basic hand tools to diagnose and repair the issue.
How much does it cost to fix the P06B2 code on a 2016 GMC Sierra?
Repair costs can range from $100 to $500 or more, depending on whether the issue is a minor wiring repair or a more expensive part replacement.
Discuss the causes and fixes for P06B2 2016 GMC Sierra OBDII Code
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