P06B2 Chevrolet 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 Chevrolet 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 Chevrolet 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 Chevrolet?
- 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 Chevrolet?
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 Chevrolet 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 P06B2 Chevrolet code?
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Information for Specific Chevrolet Models
- P06B2 2014 Chevrolet Silverado — Sensor Supply Voltage Circuit High Voltage
- P06B2 2015 Chevrolet Silverado — Sensor Supply Voltage Circuit High Voltage
- P06B2 2016 Chevrolet Silverado — Sensor Supply Voltage Circuit High Voltage
- P06B2 2017 Chevrolet Silverado — Sensor Supply Voltage Circuit High Voltage
- P06B2 2018 Chevrolet Silverado — Sensor Supply Voltage Circuit High Voltage
Frequently Asked Questions about P06B2 Chevrolet Code
1. What does the OBDII code P06B2 mean on a Chevrolet?
P06B2 indicates a high voltage issue in the sensor supply voltage circuit, which provides power to various engine sensors.
2. What are the common symptoms of the P06B2 code in a Chevrolet?
Common symptoms include engine performance issues, poor fuel efficiency, illuminated check engine light, and potential sensor-related malfunctions.
3. What causes the P06B2 code to appear on a Chevrolet?
Possible causes include a faulty sensor, damaged wiring or connectors, a defective powertrain control module (PCM), or a short circuit in the sensor supply voltage circuit.
4. Can I drive my Chevrolet with the P06B2 code?
Driving with this code is not recommended as it may lead to further damage or unsafe driving conditions due to impaired engine performance.
5. How do I diagnose the P06B2 code on my Chevrolet?
Diagnosis involves inspecting sensor wiring and connectors for damage, testing the voltage supply to sensors, and using a scan tool to check for related codes.
6. Which sensors are affected by the P06B2 code in a Chevrolet?
The P06B2 code can affect sensors that rely on the supply voltage circuit, such as the mass air flow (MAF), manifold absolute pressure (MAP), or throttle position sensor (TPS).
7. What tools are needed to fix the P06B2 code on a Chevrolet?
Tools may include a multimeter, scan tool, and basic electrical repair tools to check and repair the wiring or connectors.
8. How much does it cost to fix the P06B2 code on a Chevrolet?
The repair cost depends on the underlying issue, ranging from $50 for minor wiring repairs to $500 or more if a sensor or PCM replacement is required.
9. Can a failing PCM cause the P06B2 code in a Chevrolet?
Yes, a malfunctioning PCM can cause incorrect voltage regulation, leading to the P06B2 code.
10. How can I prevent the P06B2 code from recurring in my Chevrolet?
Regularly inspect and maintain wiring and connectors, avoid using aftermarket sensors of poor quality, and promptly address any electrical issues.
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