AutoCodes – Generic – P1B6C

P1B6C Code - Hybrid/Electric Vehicle Battery 46 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: P1B6C indicates Hybrid/Electric Vehicle Battery 46 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,933

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 12, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1B6C Description

The Hybrid/Electric Vehicle battery pack contains 288 cells. Groups of three cells are welded together in parallel. There are a total of 96 cell groups in the hybrid/EV battery pack assembly. These cell groups are electrically connected in-series. Each individual cell group is rated at 3.7 V, for a nominal system voltage of 355 V direct current. The battery cells are also grouped together into three sections. The first 90 cells/30 cell groups make up battery section one. This section is adjacent to the cowl and contains batteries 67 through to 96. Battery section two is located behind section one. It is made up of 72 cells/24 cell groups and contains batteries 43 through to 66. The transverse battery section is section number three, it is made up of the remaining 126 cells/42 cell groups and contains batteries 1 through to 42. The three battery sections are individually serviceable components.
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.

OBDII Code P1B6C - Hybrid/Electric Vehicle Battery 46 Circuit Performance - AutoCodes.com — P1B6C Code - Hybrid/Electric Vehicle Battery 46 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1B6C?

Faulty Hybrid/Electric Vehicle Battery Pack
Faulty Hybrid/Electric Vehicle Battery Interface Control Module

How to Fix the DTC P1B6C?

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 P1B6C 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 P1B6C code?

Need more information on how to fix the P1B6C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1B6C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1B6C Buick — Hybrid/Electric Vehicle Battery 46 Circuit Performance
P1B6C Cadillac — Hybrid/Electric Vehicle Battery 46 Circuit Performance
P1B6C Chevrolet — Hybrid/Electric Vehicle Battery 46 Circuit Performance
P1B6C GMC — Hybrid/Electric Vehicle Battery 46 Circuit Performance
P1B6C Saturn — Hybrid/Electric Vehicle Battery 46 Circuit Performance

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1B6C Code

1. What are common symptoms of OBDII code P1B6C (Hybrid/Electric Vehicle Battery 46 Circuit Performance)?

- Common symptoms include reduced hybrid system performance, decreased fuel efficiency, and potential illumination of the check engine light.

2. What are the possible causes of OBDII code P1B6C?

- Causes may include issues with the hybrid/electric vehicle battery, faulty battery management system, wiring or connection problems, or software glitches.

3. How can I diagnose the source of OBDII code P1B6C?

- Diagnosis typically involves using a scan tool to retrieve the code, inspecting the hybrid/electric vehicle battery connections, checking for any visible damage, and performing a battery health check.

4. Can driving with OBDII code P1B6C pose any risks to the vehicle?

- Continuing to drive with this code may lead to further damage to the hybrid system components and potentially impact the vehicle's overall performance and efficiency.

5. What steps can I take to repair OBDII code P1B6C?

- Repair options may include addressing any underlying battery issues, repairing or replacing damaged wiring, resetting the battery management system, and clearing the trouble code.

6. Is it safe to reset the OBDII code P1B6C on my own?

- It is generally safe to clear the code after addressing the underlying issue, but it's recommended to consult with a professional or follow the manufacturer's guidelines to ensure proper resolution.

7. How much does it typically cost to repair OBDII code P1B6C?

- The cost of repair can vary depending on the exact cause of the code, the extent of the issue, and whether any components need to be replaced. It's advisable to obtain estimates from qualified technicians.

8. Are there any preventive maintenance tips to avoid OBDII code P1B6C in the future?

- Regularly inspecting the hybrid/electric vehicle battery, following the manufacturer's recommended maintenance schedule, and addressing any issues promptly can help prevent this code from recurring.

9. Can OBDII code P1B6C be triggered by external factors, such as extreme temperatures?

- Yes, extreme temperatures can impact the performance of hybrid/electric vehicle batteries and potentially trigger code P1B6C. Proper insulation and temperature management are important in such cases.

10. How urgent is it to address OBDII code P1B6C once detected?

- It is recommended to address this code promptly to prevent further damage to the hybrid system and ensure optimal performance of the vehicle. Delaying repairs may lead to more costly issues down the line.