P06B2 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado?
- 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 2018 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 P06B2 2018 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 P06B2 2018 Chevrolet Silverado Code
What does the OBDII code P06B2 mean on a 2018 Chevrolet Silverado?
P06B2 indicates a "Sensor Supply Voltage Circuit High Voltage," meaning the voltage in the sensor supply circuit is higher than the expected range.
What are the symptoms of code P06B2 in a 2018 Chevrolet Silverado?
Symptoms may include the check engine light turning on, poor engine performance, reduced fuel efficiency, or erratic sensor readings.
What causes the P06B2 code in a 2018 Chevrolet Silverado?
Common causes include a faulty engine control module (ECM), damaged wiring or connectors in the sensor supply circuit, or a malfunctioning sensor.
How do you diagnose the P06B2 code in a 2018 Chevrolet Silverado?
Diagnosis involves checking the sensor supply voltage with a multimeter, inspecting wiring and connectors for damage, and testing the ECM for proper operation.
Can I drive my 2018 Chevrolet Silverado with the P06B2 code active?
It is not recommended to drive with this code active, as it may lead to poor engine performance or further damage to the electrical system.
How do you fix the P06B2 code on a 2018 Chevrolet Silverado?
Repairs may include replacing damaged wiring or connectors, repairing or replacing the affected sensor, or reprogramming or replacing the ECM if necessary.
Is the P06B2 code a serious issue for a 2018 Chevrolet Silverado?
Yes, it can be serious as it impacts the operation of sensors critical for engine performance and may lead to further issues if not addressed.
How much does it cost to repair the P06B2 code on a 2018 Chevrolet Silverado?
Repair costs vary depending on the issue, but fixing wiring or connectors may cost $100-$300, while ECM replacement can cost $500-$1,500.
What tools are needed to diagnose the P06B2 code on a 2018 Chevrolet Silverado?
You’ll need an OBDII scanner, a multimeter to check voltage, and possibly a wiring diagram for the sensor supply circuit.
Can a bad battery cause the P06B2 code in a 2018 Chevrolet Silverado?
While unlikely, a failing battery or alternator could cause electrical irregularities that may contribute to this code.
Discuss the causes and fixes for P06B2 2018 Chevrolet Silverado OBDII Code
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