P1BCC Buick Code - Hybrid/Electric Vehicle Battery 78 Circuit Performance
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
- P1BCC Buick indicates Hybrid/Electric Vehicle Battery 78 Circuit Performance.
- 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 P1BCC Buick 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 P1BCC Buick?
- Faulty Hybrid/Electric Vehicle Battery Pack
- Faulty Hybrid/Electric Vehicle Battery Interface Control Module
How to Fix the DTC P1BCC Buick?
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 P1BCC Buick 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 P1BCC Buick Code
1. What does the OBDII code P1BCC mean for a Buick?
P1BCC indicates an issue with the Hybrid/Electric Vehicle Battery 78 Circuit Performance, which relates to the performance or voltage of specific battery modules within the hybrid or EV system.
2. What are the common symptoms of code P1BCC in a Buick?
Symptoms may include an illuminated check engine light, reduced hybrid or EV performance, decreased fuel efficiency, or the vehicle entering a limp mode.
3. What causes the P1BCC code to appear on a Buick?
Common causes include faulty battery modules, a malfunctioning battery control module, corroded or damaged wiring/connectors, or an imbalance in the battery cell voltage.
4. Can I drive my Buick with the P1BCC code?
It’s not recommended to continue driving, as the issue may worsen and could lead to further damage to the hybrid or EV system, or leave you stranded if the battery system fails.
5. How is the P1BCC code diagnosed in a Buick?
A technician will use a scan tool to check the battery control module, inspect battery cell voltages, and visually inspect wiring and connectors for damage or corrosion.
6. What repairs can fix the P1BCC code in a Buick?
Repairs may include replacing defective battery modules, repairing or replacing damaged wiring or connectors, reprogramming the battery control module, or replacing the module if it's faulty.
7. How much does it cost to repair the P1BCC code in a Buick?
The cost varies depending on the issue, ranging from $100 for wiring repairs to over $1,000 for battery module replacements or control module repairs.
8. Can a low 12V battery trigger the P1BCC code in a Buick?
While unlikely, a weak 12V battery can sometimes cause system communication issues, so it’s worth testing and replacing it if necessary.
9. Does the P1BCC code mean the entire hybrid battery needs replacement?
Not necessarily; the issue may only affect specific modules or circuits, allowing for targeted repairs instead of full battery replacement.
10. Can I reset the P1BCC code without repairs?
You can clear the code temporarily, but it will likely return if the underlying issue isn’t resolved, potentially causing further problems.
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