AutoCodes – Saturn – P1B1C Saturn

P1B1C Saturn Code - Hybrid/Electric Vehicle Battery 29 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: P1B1C Saturn indicates Hybrid/Electric Vehicle Battery 29 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 788

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 08, 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 P1B1C 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 P1B1C Saturn - Hybrid/Electric Vehicle Battery 29 Circuit Performance - AutoCodes.com — P1B1C Saturn Code - Hybrid/Electric Vehicle Battery 29 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1B1C Saturn?

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

How to Fix the DTC P1B1C 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 P1B1C 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 P1B1C Saturn code?

Need more information on how to fix the P1B1C Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1B1C 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 P1B1C Saturn Code

1. What does the OBDII code P1B1C mean for a Saturn vehicle?

P1B1C indicates an issue with the performance of the Hybrid/Electric Vehicle Battery 29 Circuit, which is part of the battery management system.

2. What are common symptoms of a P1B1C code in a Saturn?

Symptoms may include the check engine light turning on, reduced hybrid or electric performance, poor fuel efficiency, or limited electric range.

3. What causes the P1B1C code to appear on a Saturn?

Potential causes include a faulty battery cell, a damaged or corroded battery wiring harness, a malfunctioning battery management sensor, or a software issue in the battery control module.

4. Can I continue driving my Saturn if the P1B1C code is active?

While the vehicle may still be drivable, it is not recommended to ignore the issue as it could lead to further damage or reduced hybrid system performance.

5. How is the P1B1C code diagnosed?

A technician will use an advanced scan tool to check the battery control module, inspect the wiring and connectors for damage, and test the performance of the battery circuits.

6. What repairs are usually needed to fix the P1B1C code?

Repairs may include replacing the affected battery cell, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming the battery control module.

7. How much does it cost to fix a P1B1C code on a Saturn?

Repair costs can vary, but they typically range from $200 to $1,000 depending on whether the issue involves wiring repairs or battery cell replacement.

8. Can a dead 12V battery cause the P1B1C code?

A weak or failing 12V battery is unlikely to directly cause this code, but it can affect the overall performance of the hybrid system and should be checked.

9. Will resetting the check engine light fix the P1B1C code on my Saturn?

Resetting the light may temporarily clear the code, but the underlying issue must be addressed to prevent it from returning.

10. Is the P1B1C code specific to Saturn vehicles?

While the code is specific to certain hybrid or electric Saturn models, the issue it represents can occur in other hybrid or electric vehicles under a different code.