AutoCodes – Saturn – P0BAB Saturn

P0BAB Saturn Code - Hybrid/Electric Vehicle Battery 23 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: P0BAB Saturn indicates Hybrid/Electric Vehicle Battery 23 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 820

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
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Code P0BAB 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 P0BAB Saturn - Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage - AutoCodes.com — P0BAB Saturn Code - Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0BAB Saturn?

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

How to Fix the DTC P0BAB 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 P0BAB 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 P0BAB Saturn Code

1. What are the common symptoms of OBDII code P0BAB in a Saturn hybrid/electric vehicle?

- Common symptoms include reduced hybrid system performance, illuminated check engine light, and poor fuel efficiency.

2. What are the possible causes of the OBDII code P0BAB indicating Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage in a Saturn?

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

3. How can I diagnose the OBDII code P0BAB on my Saturn to identify the root cause of the issue?

- A thorough diagnosis using an OBDII scanner, checking the battery voltage levels, and inspecting the battery connections and wiring can help pinpoint the issue.

4. Can driving with the OBDII code P0BAB present cause further damage to the vehicle?

- Continuing to drive with this code present can potentially lead to further damage to the hybrid/electric system and may result in decreased performance and efficiency.

5. Is it safe to attempt to repair the OBDII code P0BAB issue in a Saturn hybrid/electric vehicle without professional help?

- Due to the complexity of hybrid/electric systems, it is recommended to seek assistance from a certified technician to properly diagnose and repair the issue.

6. Are there any DIY repair tips for addressing the Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage error code in a Saturn?

- DIY tips may include checking and tightening battery connections, inspecting for visible damage to wiring, and ensuring the battery is properly charged.

7. How much does it typically cost to repair the OBDII code P0BAB related to Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage in a Saturn?

- The cost of repair can vary depending on the root cause of the issue, but it may involve battery replacement, wiring repairs, or module reprogramming, potentially ranging from hundreds to thousands of dollars.

8. Can a low or dead hybrid/electric vehicle battery cause the OBDII code P0BAB to appear in a Saturn?

- Yes, a low or dead battery can trigger the P0BAB code due to insufficient voltage levels in the hybrid/electric system.

9. How long does it typically take to repair the OBDII code P0BAB issue related to Hybrid/Electric Vehicle Battery 23 Circuit Low Voltage in a Saturn?

- The repair time can vary based on the specific diagnosis and required repairs, but it may take several hours to a day for a technician to address the issue thoroughly.

10. Are there any preventive measures to avoid encountering the OBDII code P0BAB in a Saturn hybrid/electric vehicle in the future?

- Regular maintenance of the hybrid/electric system, including monitoring battery health, performing system checks, and addressing any warning signs promptly, can help prevent the recurrence of the P0BAB code.