AutoCodes – Saturn – P1BBC Saturn

P1BBC Saturn Code - Hybrid/Electric Vehicle Battery 72 Circuit High Voltage

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: P1BBC Saturn indicates Hybrid/Electric Vehicle Battery 72 Circuit High Voltage.
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.

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Code Popularity 950

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
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Code P1BBC 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 P1BBC Saturn - Hybrid/Electric Vehicle Battery 72 Circuit High Voltage - AutoCodes.com — P1BBC Saturn Code - Hybrid/Electric Vehicle Battery 72 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1BBC Saturn?

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

How to Fix the DTC P1BBC 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 P1BBC 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.

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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 P1BBC Saturn Code

1. What does the OBDII code P1BBC mean on a Saturn vehicle?

P1BBC indicates a "Hybrid/Electric Vehicle Battery 72 Circuit High Voltage" issue, meaning the control module has detected an abnormally high voltage in the battery circuit.

2. What are the common symptoms of a P1BBC code?

Symptoms may include the check engine light turning on, reduced hybrid/electric vehicle performance, limited battery charging or discharging, and potential limp mode activation.

3. What causes the P1BBC code on a Saturn hybrid or electric vehicle?

Common causes include a faulty battery module, damaged or corroded high-voltage wiring, a malfunctioning battery control module, or loose connections in the circuit.

4. Can I drive my Saturn with a P1BBC code?

Itâ€™s not recommended to drive the vehicle with this code active, as it may lead to reduced performance, safety concerns, or further damage to the battery system.

5. How is the P1BBC code diagnosed?

A technician will use a scan tool to read the code, inspect the high-voltage battery and wiring, check for loose or corroded connections, and test the battery control module for malfunctions.

6. How do I fix the P1BBC code on my Saturn?

Repairs may involve replacing a faulty battery module, repairing or replacing damaged high-voltage wiring, cleaning or tightening connections, or reprogramming/updating the battery control module.

7. Can a low 12-volt battery cause a P1BBC code?

While the 12-volt battery isnâ€™t directly related, a weak 12-volt battery can sometimes cause communication issues or false readings in the hybrid/electric system.

8. Does the P1BBC code always mean the hybrid battery is failing?

Not always; the issue could be with the wiring, connections, or control module rather than the battery itself.

9. How much does it cost to repair a P1BBC code?

Repair costs can vary widely depending on the exact cause, ranging from $100 for simple wiring repairs to several thousand dollars for battery replacement.

10. Can I clear the P1BBC code without repairing the issue?

Clearing the code without addressing the root cause is not recommended, as the issue will likely return and may lead to further system damage.