AutoCodes – Saturn – P1B16 Saturn

P1B16 Saturn Code - Hybrid/Electric Vehicle Battery 27 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: P1B16 Saturn indicates Hybrid/Electric Vehicle Battery 27 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.

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Code Popularity 935

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 P1B16 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 P1B16 Saturn - Hybrid/Electric Vehicle Battery 27 Circuit Performance - AutoCodes.com — P1B16 Saturn Code - Hybrid/Electric Vehicle Battery 27 Circuit Performance

What does this mean?

What are the Possible Causes of the DTC P1B16 Saturn?

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

How to Fix the DTC P1B16 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 P1B16 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 P1B16 Saturn Code

1. What are common symptoms of OBDII code P1B16 on a Saturn hybrid/electric vehicle?

- Common symptoms include poor fuel efficiency, reduced power, battery charging issues, and dashboard warning lights related to the hybrid/electric system.

2. What can cause the OBDII code P1B16 to trigger on a Saturn hybrid/electric vehicle?

- The code P1B16 typically indicates issues with the Hybrid/Electric Vehicle Battery 27 Circuit, which can be caused by a faulty battery pack, damaged wiring, or issues with battery cooling systems.

3. How can I diagnose the OBDII code P1B16 on my Saturn hybrid/electric vehicle?

- Diagnosis involves using a professional OBDII scanner to read the code, checking the battery pack's voltage and temperature, inspecting wiring for damage, and ensuring proper connections.

4. Is it safe to continue driving with the OBDII code P1B16 on my Saturn hybrid/electric vehicle?

- It is not recommended to drive the vehicle with the code P1B16 present, as it can lead to further damage to the hybrid/electric system and potentially unsafe driving conditions.

5. Can I reset the OBDII code P1B16 on my Saturn hybrid/electric vehicle myself?

- While you can clear the code using an OBDII scanner, it is important to address the underlying issue causing the code to prevent it from reoccurring.

6. Are there any simple repairs I can try to fix the OBDII code P1B16 on my Saturn hybrid/electric vehicle?

- Simple repairs may include checking and tightening battery connections, inspecting for visible wire damage, and ensuring the battery cooling system is functioning properly.

7. Should I take my Saturn hybrid/electric vehicle to a professional mechanic for OBDII code P1B16 repairs?

- Yes, it is recommended to take your vehicle to a qualified mechanic with experience in hybrid/electric systems to accurately diagnose and repair issues related to code P1B16.

8. How much does it typically cost to repair the OBDII code P1B16 on a Saturn hybrid/electric vehicle?

- Repair costs for code P1B16 can vary depending on the specific issue, but they may range from a few hundred to a few thousand dollars, especially if a battery pack replacement is needed.

9. Can the OBDII code P1B16 on my Saturn hybrid/electric vehicle be related to other codes or issues?

- Yes, the code P1B16 may be related to other hybrid/electric system codes or issues, so it is important to perform a comprehensive diagnostic check to identify all potential problems.

10. How can I prevent the OBDII code P1B16 from recurring on my Saturn hybrid/electric vehicle?

- To prevent the code from coming back, it is crucial to address any underlying issues promptly, perform regular maintenance on the hybrid/electric system, and follow the manufacturer's guidelines for battery care.