P0B86 Chevrolet Code - Hybrid/Electric Vehicle Battery 16 Circuit
Quick Answer
The Hybrid/Electric Vehicle battery pack contains 288 cells. Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module. 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
- P0B86 Chevrolet indicates Hybrid/Electric Vehicle Battery 16 Circuit.
- Common causes
- Common causes include Faulty Hybrid/Electric Vehicle Battery Pack, Faulty Hybrid/Electric Vehicle Battery Interface Control Module.
- 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 P0B86 Chevrolet Description
The battery energy control module monitors the voltage of the 96 battery cell groups through the four hybrid/EV battery interface control modules. Voltage sense circuits are attached to each individual cell group, and these sense circuits terminate at a connector located on the top surface of the battery section. A serviceable auxiliary battery wiring harness joins this connector to a hybrid/EV battery interface control module, also located on the top surface of the battery section. The hybrid/EV battery interface control module encodes the voltage reading and transmits it to the battery energy control module through the battery control harness. There is one hybrid/EV battery interface control module located on battery sections one and two, and two hybrid/EV battery interface control modules associated with battery section three. The hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module are all considered serviceable components.
The battery energy control module will determine when a fault condition is present. Diagnostics and system status are communicated from the battery energy control module to hybrid/EV powertrain control module 2 through serial data. The hybrid/EV powertrain control module 2 is the host controller for diagnostic trouble code information.
What are the Possible Causes of the DTC P0B86 Chevrolet?
- Faulty Hybrid/Electric Vehicle Battery Pack
- Faulty Hybrid/Electric Vehicle Battery Interface Control Module
How to Fix the DTC P0B86 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 P0B86 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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Frequently Asked Questions about P0B86 Chevrolet Code
What does the OBDII code P0B86 mean on a Chevrolet?
1. P0B86 indicates an issue with the Hybrid/Electric Vehicle Battery 16 Circuit, which typically refers to a fault in the monitoring or operation of the 16th battery module or its associated circuitry. 2.
What are the common symptoms of the P0B86 code in a Chevrolet?
Common symptoms include reduced fuel efficiency, decreased hybrid battery performance, warning lights on the dashboard (like the check engine or hybrid system warning), and limited power in EV mode. 3.
What causes the P0B86 code in a Chevrolet?
The code can be caused by a faulty battery module, damaged wiring or connectors in the battery circuit, a failing battery control module, or issues with the voltage sensors. 4.
Can you drive a Chevrolet with the P0B86 code?
While the vehicle may still be drivable, it’s not recommended to ignore the issue, as it can lead to reduced performance, potential battery damage, and further complications. 5.
How is the P0B86 code diagnosed in a Chevrolet?
A mechanic will use a scan tool to read the code, inspect the battery system and its wiring, check the battery control module, and measure voltage levels in the affected circuit. 6.
What repairs are typically needed for a P0B86 code?
Repairs may include replacing the faulty battery module, repairing or replacing damaged wiring or connectors, recalibrating the battery control module, or replacing the module if it’s defective. 7.
How much does it cost to fix a P0B86 code in a Chevrolet?
The cost can vary widely depending on the exact issue, ranging from $100–$300 for wiring repairs to $1,000 or more for battery module replacement. 8.
Can a software update fix the P0B86 code in a Chevrolet?
In some cases, a software update for the battery control module may resolve the issue, but this is less common than hardware repairs. 9.
What tools are needed to troubleshoot the P0B86 code?
Tools typically include a professional OBDII scan tool, a multimeter for checking voltages, and potentially a battery system diagnostic tool specific to hybrid or electric vehicles. 10.
Is the P0B86 code covered under warranty for a Chevrolet?
If your vehicle is still under the hybrid or electric battery warranty, repairs for this code may be covered. Check with your dealership for details.
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