AutoCodes – Saturn – P1BB4 Saturn

P1BB4 Saturn Code - Hybrid/Electric Vehicle Battery 70 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: P1BB4 Saturn indicates Hybrid/Electric Vehicle Battery 70 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 870

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 P1BB4 Saturn 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 P1BB4 Saturn - Hybrid/Electric Vehicle Battery 70 Circuit Performance - AutoCodes.com — P1BB4 Saturn Code - Hybrid/Electric Vehicle Battery 70 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1BB4 Saturn?

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

How to Fix the DTC P1BB4 Saturn?

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 P1BB4 Saturn 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 P1BB4 Saturn code?

Need more information on how to fix the P1BB4 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1BB4 Saturn code diagnosed by a professional: Find a repair shop in your area

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 P1BB4 Saturn Code

1. What are the common symptoms of OBDII code P1BB4 in a Saturn Hybrid/Electric Vehicle?

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

2. What causes the OBDII code P1BB4 related to Hybrid/Electric Vehicle Battery 70 Circuit Performance in a Saturn?

- The code P1BB4 typically indicates issues with the circuit performance of the hybrid/electric vehicle battery, such as a faulty battery cell, wiring issues, or a malfunctioning battery management system.

3. How can I diagnose the OBDII code P1BB4 in my Saturn Hybrid/Electric Vehicle?

- Diagnosing the code P1BB4 may require specialized diagnostic equipment to test the hybrid/electric vehicle battery, circuitry, and related components for faults or abnormalities.

4. Can I continue driving my Saturn with the OBDII code P1BB4 present?

- It is not recommended to continue driving your Saturn with the code P1BB4 active, as it may lead to further damage to the hybrid/electric vehicle system and potentially result in a complete system failure.

5. What are some repair tips for resolving the OBDII code P1BB4 in a Saturn Hybrid/Electric Vehicle?

- Repairing the code P1BB4 may involve repairing or replacing damaged wiring, replacing faulty battery cells, resetting the battery management system, or seeking professional assistance from a qualified technician.

6. Is it safe to attempt repairs on the hybrid/electric vehicle battery system related to the OBDII code P1BB4 in a Saturn?

- Due to the high voltage nature of hybrid/electric vehicle battery systems, it is recommended to exercise caution and seek professional assistance when attempting repairs related to the OBDII code P1BB4.

7. How much does it typically cost to repair the OBDII code P1BB4 in a Saturn Hybrid/Electric Vehicle?

- The cost of repairing the OBDII code P1BB4 in a Saturn can vary depending on the extent of the damage, the parts needed for replacement, and the labor charges of the repair facility.

8. Are there any preventive maintenance measures I can take to avoid the OBDII code P1BB4 in my Saturn Hybrid/Electric Vehicle?

- Regularly inspecting and maintaining the hybrid/electric vehicle battery system, following the manufacturer's recommended service schedule, and avoiding overcharging or deep discharging the battery can help prevent issues leading to the code P1BB4.

9. How urgent is it to address the OBDII code P1BB4 in a Saturn Hybrid/Electric Vehicle?

- It is recommended to address the OBDII code P1BB4 promptly to prevent potential damage to the hybrid/electric vehicle system and ensure the vehicle's optimal performance and safety.

10. Can the OBDII code P1BB4 in a Saturn Hybrid/Electric Vehicle be cleared/reset without repairs?

- Clearing or resetting the OBDII code P1BB4 without addressing the underlying issue is not recommended, as the problem may persist and lead to more severe consequences in the future.