AutoCodes – Saturn – P1BC1 Saturn

P1BC1 Saturn Code - Hybrid/Electric Vehicle Battery 74 Circuit Low 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: P1BC1 Saturn indicates Hybrid/Electric Vehicle Battery 74 Circuit Low 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 894

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 P1BC1 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 P1BC1 Saturn - Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage - AutoCodes.com — P1BC1 Saturn Code - Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1BC1 Saturn?

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

How to Fix the DTC P1BC1 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 P1BC1 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 P1BC1 Saturn Code

1. What are the common symptoms of OBDII code P1BC1 Saturn related to the Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage?

- Common symptoms include poor fuel efficiency, reduced power output, and potential issues with the hybrid/electric system.

2. What are the possible causes of OBDII code P1BC1 Saturn indicating Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage?

- Possible causes include a faulty hybrid/electric vehicle battery, damaged wiring or connectors, or issues with the battery management system.

3. How can I diagnose the root cause of OBDII code P1BC1 Saturn for the Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage?

- Diagnosis involves using a diagnostic scanner to read the code, inspecting the battery and related components for physical damage, and testing the voltage levels of the battery.

4. Can a DIY enthusiast repair OBDII code P1BC1 Saturn for the Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage?

- Repair of this code may require specialized knowledge and tools, so it is recommended to consult a qualified technician or an authorized service center.

5. Is it safe to continue driving with OBDII code P1BC1 Saturn related to the Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage?

- It is not advisable to continue driving with this code active, as it can lead to further damage to the hybrid/electric system and potentially compromise vehicle safety.

6. How much does it typically cost to repair OBDII code P1BC1 Saturn for the Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage?

- Repair costs can vary depending on the exact cause of the issue, but it is recommended to budget for potential battery replacements or repairs which can be expensive.

7. Are there any preventive maintenance tips to avoid encountering OBDII code P1BC1 Saturn for the Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage?

- Regularly checking the battery health, ensuring proper charging habits, and following manufacturer-recommended maintenance schedules can help prevent such issues.

8. Can extreme weather conditions impact the likelihood of triggering OBDII code P1BC1 Saturn for the Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage?

- Yes, extreme temperatures can affect the performance and health of the hybrid/electric vehicle battery, potentially leading to issues like low voltage triggering the code.

9. How long does it usually take to repair OBDII code P1BC1 Saturn for the Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage?

- The repair duration can vary based on the complexity of the issue and availability of parts, but it is recommended to consult with the technician for a more accurate estimate.

10. Are there any recalls or service bulletins related to OBDII code P1BC1 Saturn for the Hybrid/Electric Vehicle Battery 74 Circuit Low Voltage in Saturn vehicles?

- It is advisable to check with the authorized Saturn service center or visit the NHTSA website for any relevant recalls or service bulletins related to this issue.