P06B1 Chevrolet Code - Sensor Supply Voltage Circuit Low 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
- P06B1 Chevrolet indicates Sensor Supply Voltage Circuit Low 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 P06B1 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 less than 8.8 V for 1 second.
What are the Possible Causes of the DTC P06B1 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 P06B1 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 P06B1 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.
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Information for Specific Chevrolet Models
- P06B1 2014 Chevrolet Silverado — Sensor Supply Voltage Circuit Low Voltage
- P06B1 2015 Chevrolet Silverado — Sensor Supply Voltage Circuit Low Voltage
- P06B1 2016 Chevrolet Silverado — Sensor Supply Voltage Circuit Low Voltage
- P06B1 2017 Chevrolet Silverado — Sensor Supply Voltage Circuit Low Voltage
- P06B1 2018 Chevrolet Silverado — Sensor Supply Voltage Circuit Low Voltage
Frequently Asked Questions about P06B1 Chevrolet Code
1. What does the P06B1 code mean on a Chevrolet?
The P06B1 code indicates "Sensor Supply Voltage Circuit Low Voltage," meaning there is an issue with the voltage supply to one or more sensors in the vehicle.
2. What are the common symptoms of the P06B1 code?
Symptoms may include a check engine light, poor engine performance, reduced fuel efficiency, or issues with sensor readings.
3. What causes the P06B1 code to appear?
Common causes include a faulty powertrain control module (PCM), damaged wiring, a short circuit, a blown fuse, or a failed sensor.
4. Can driving with the P06B1 code damage my Chevrolet?
Continuing to drive with this code can lead to improper engine performance and may cause further damage if the root issue isn’t resolved.
5. How do I diagnose the P06B1 code?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting wiring and connectors for damage, and testing the sensor supply voltage circuit with a multimeter.
6. What sensors are affected by the P06B1 code?
The code typically affects sensors that rely on the PCM for a regulated voltage supply, such as the mass air flow (MAF) sensor or throttle position sensor (TPS).
7. Is a faulty PCM a common cause of the P06B1 code?
While rare, a faulty PCM can cause the P06B1 code. However, it’s more common for the issue to stem from wiring or sensor problems.
8. How do I fix the P06B1 code on my Chevrolet?
Repairs may include fixing or replacing damaged wiring, cleaning or replacing connectors, replacing a blown fuse, or replacing a faulty sensor.
9. What tools do I need to troubleshoot the P06B1 code?
You’ll need an OBDII scanner, a multimeter, and possibly a wiring diagram for your Chevrolet model to pinpoint the issue.
10. Can I clear the P06B1 code without fixing it?
Clearing the code without fixing the underlying issue will likely cause it to return, as the root problem remains unresolved.
Discuss the causes and fixes for P06B1 Chevrolet OBDII Code
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