AutoCodes – Saturn – P1B68 Saturn

P1B68 Saturn Code - Hybrid/Electric Vehicle Battery 44 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: P1B68 Saturn indicates Hybrid/Electric Vehicle Battery 44 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 866

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 P1B68 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 P1B68 Saturn - Hybrid/Electric Vehicle Battery 44 Circuit High Voltage - AutoCodes.com — P1B68 Saturn Code - Hybrid/Electric Vehicle Battery 44 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P1B68 Saturn?

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

How to Fix the DTC P1B68 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 P1B68 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 P1B68 Saturn Code

1. What are the common symptoms of OBDII code P1B68 Saturn on a hybrid/electric vehicle?

- Common symptoms include the illumination of the Check Engine light, reduced fuel efficiency, and potential performance issues.

2. What could be the possible causes of the P1B68 Saturn code related to the Hybrid/Electric Vehicle Battery 44 Circuit High Voltage?

- The code may be triggered by issues such as a malfunctioning battery control module, damaged high voltage circuit components, or wiring issues.

3. How can I diagnose the P1B68 Saturn code on my hybrid/electric vehicle?

- Diagnosis usually involves using a scan tool to read the code, performing a visual inspection of the battery and related components, and testing the high voltage circuitry.

4. Is it safe to continue driving with the P1B68 Saturn code present?

- It is not recommended to continue driving with this code active, as it can affect the performance and safety of the vehicle. Immediate attention and repair are advised.

5. Can I repair the P1B68 Saturn code issue myself, or do I need to take it to a professional mechanic?

- Due to the high voltage nature of the components involved, it is recommended to seek professional help for diagnosing and repairing the P1B68 Saturn code to ensure safety and proper handling.

6. Are there any preventive maintenance tips to avoid encountering the P1B68 Saturn code in the future?

- Regularly inspecting the high voltage components, following the manufacturer's maintenance schedule, and addressing any warning signs promptly can help prevent issues leading to this code.

7. How much does it typically cost to repair the P1B68 Saturn code on a Saturn hybrid/electric vehicle?

- Repair costs can vary depending on the specific issue causing the code, but it is advisable to budget for potential expenses related to diagnostic tests, parts replacement, and labor.

8. Will resetting the OBDII code P1B68 Saturn make it go away permanently?

- Resetting the code may temporarily turn off the Check Engine light, but if the underlying issue is not addressed, the code is likely to reappear. It is crucial to diagnose and fix the root cause.

9. Can the P1B68 Saturn code affect the overall performance of my hybrid/electric vehicle?

- Yes, unresolved issues related to this code can impact the vehicle's performance, fuel efficiency, and safety due to potential high voltage system malfunctions.

10. Is it possible for the P1B68 Saturn code to cause damage to other vehicle components if left unrepaired?

- Yes, ignoring the P1B68 Saturn code can lead to further damage to the high voltage system components, potentially resulting in costly repairs and safety hazards.