NHTSA ID Number: 10236049
Manufacturer Communication Number: IK2300016
TSB/Document Date: 2023-05-10
Summary
Electric Vehicle high voltage battery
diagnostics
iKNow
Knowledge Base
v
Copy Link
Copy Relative Link Bookmark ‘Add to Favorites Print
View My Bookmarks
Title: Electric Vehicle High Voltage Battery Diagnostics
Applies To: Electric CE Bus and eMV
CHANGE LOG
Please refer to the c!
hange log text box below for recent changes to this article:
Countri
CANADA, UNITED STATES
Availability: ISIS, Bus ISIS, ISSIR
Major System: ELECTRIC VEHICLE
Current Language: English
Other Languages: NONE
Viewed: 142
Provide Feedback Helpful
@
DESCRIPTION
Document ID: 1K2300016
Revision: 0
Created: 3/16/2023
Last Modified: 4/24/2023
Author: Josh Bowman
Not Helpful
This document will guide the user through diagnosing a failed high-voltage battery when there is a suspected concern indicated by symptom or fault code.
SYMPTOMS
Diagnostic Trouble Codes & Dashboard Indicator Lights:
DTC/Light
Description
SPN 8100 FMI 2
HVESS State of Charge Status : Data Erratic, Intermittent Or Incorrect
SPN 5923 FMI 4
HVESS Lowest Cell Voltage : Voltage Below Normal, Or Shorted To Low Source
SPN 5923 FMI 17
HVESS Lowest Cell Voltage : Data Valid But Below Normal Operating Range — Least Severe Level
SPN 5924 FMI 2
HVESS Cell Voltage Differential Status : Data Erratic, Intermittent Or Incorrect
Customer Observations or Concerns:
Vehicle may derate or experience a shut down requiring a vehicle tow
Decreased driving range
Malfunction Indicator Lamp (MIL)
Power Limitation Indica
Red Stop Lamp (RSL)
itor Lamp (PLIL - Turtle Light)
SPECIAL TOOLS / SOFTWARE
lTool Description
|Tool Number |Comments
Instructions
EZ-Tech® or EST
N/A
w/Service Diagnostics Solutions (SDS) Software || Version 1.6.18 or higher
NEXIQ USB Link 2 or 3 NQ124032 / 121052|
Electric Vehicle "Y" Adapter Cable 08-801-01
Works w/USB-LINK 2 or 3
12v Battery Charger
PSCS550CC 55 Amp
Digital Multimeter
Fluke 1587 Category 3
High Voltage PPE NIA
HV Battery Adapter Plate 08-529-04
HV Battery Mount Adapter Bracket
08-529-03
Lift Assembly 08-529-01
HV Battery Cap Kit 08-529-05
SERVICE PARTS INFORMATION
, oti [Quantity
Kit Description Part Number Requirea [Notes
BATTERY, HIGH VOLT RENEWED 5013171R91 1 las diagnosed
BATTERY , HIGH VOLTAGE 4207165C91 1 las diagnosed
DIAGNOSTIC STEPS
WARNING! To prevent personal injury and / or death, or damage to property, park
vehicle on hard flat surface, turn the engine off, set the parking brake, and install
wheel chocks to prevent the vehicle from moving in both directions.
WARNING! To prevent personal injury and / or death, always wear safe eye
protection when performing vehicle maintenance.
WARNING! To prevent personal injury and / or death, or damage to property, keep
flames or sparks away from vehicle and do not smoke while servicing the vehicle's
batteries. Batteries expel explosive gases.
WARNING! To prevent personal injury and / or death, NEVER service a high voltage
vehicle without completing high-voltage safety training. Before working on vehicle,
read and obey all High-Voltage Safety and Lock-Out Tag-Out procedures and
information.
WARNING! To prevent personal injury and / or death, wear and use approved high-
voltage Personal Protective Equipment (PPE) when near a high-voltage electric
vehicle, Inspect PPE before use. Do not use gloves or other PPE with expired
dates, holes, cracks, or damage. NEVER touch energized orange highvoltage
cables or high-voltage components without wearing approved highvoltage PPE.
WARNING! To prevent personal injury and / or death, read all information in the
Safety Information and High-Voltage Safety sections of the service manual.
WARNING! To prevent personal injury and / or death, or damage to property,
remove the ground cable from the negative terminal of the battery box before
disconnecting any electrical components. Always connect the ground cable last.
\Step/Action Decision
1 |DIAGNOSTIC: Yes. Perform initial SDS CAN Trace. See
ISDS CAN Trace Instructions. Open
Is there a suspected concer indicated by symptom or fault code for the high-voltage | technical service case file and attach SDS|
battery(s)?
ICAN Trace to case file. Proceed to step 2
INo. Please refer to diagnostics of any
non-related active faults, or end
diagnostics if no symptom/faults present
iStep/Action
Possible Decisions
- High density negative paste, improves performance and...
- Enhanced life alloy or Silver Calcium stamped alloy...
- Calcium lead positive grid, maximizes conductivity and...
- Robust envelope separator with puncture resistant back...
- Vent cap design that resists acid leakage
- High density negative paste, improves performance and...
- Enhanced life alloy or Silver Calcium stamped alloy...
- Calcium Lead positive grid, maximizes conductivity and...
- Robust Envelope Separator with puncture-resistant back...
- Vent cap design that resists acid leakage
Last update on 2026-05-30 / Affiliate links / Images from Amazon Product Advertising API
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: IK2300016
Replacement Service Bulletin Number:
MFR Communication Date: 2023-04-24
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [2026 Top-Tier Hardware and Software Upgrade]: Topdon ArtiDiag900 Lite scanner has enhanced hardware and latest features, including Android 11.0, 5x faster CPU, 10000mAh battery for 12 hours of continuous operation, stable wireless diagnosis with Bluetooth 5.0, 8-inch touchscreen. Added bi-directional control, wireless diagnosis, battery testing (optional), and DTC repair guide
- [TOPDON Bidirectional Scan Tool]: This bidirectional obd2 scanner sends commands to the vehicle's ECU for active testing, enabling users to accurately and quickly locate faulty components such as injectors, coolant pumps, windows, wipers, headlights, mirrors, etc. The bidirectional control scanner is the ideal choice for workshops/automotive repair shops as it significantly reduces mechanic's diagnostic time.
- [Wireless Bluetooth Diagnostic Experience]: The AD900 Lite scan tool comes with a Bluetooth 5.0 VCI, supporting a wireless diagnostic range of up to 33 feet (10 meters), allowing you to diagnose without being confined to cables or tight spaces. Stable and fast wireless diagnosis provides a comfortable repair environment. It also offers VCI cables to increase connectivity options.
- [DTC Repair Guide Function]: Easily diagnose issues with your vehicle and receive guidance on repairs with the topdon scan tool's fault code definitions for all systems,maximize your diagnostic capabilities. This function is compatible with Chrysler
/Dodge/Jeep/Fiat 2010-2014 and expanding with continual updates,the AritDiag 900 Lite car diagnostic scanner is the must-have tool for any technician or DIY enthusiast. - [OE-Level Full System Diagnostics]:AritDiag900 Lite full system diagnostic scanner can scan ALL available modules(Engine, Transmission, Airbag, ABS, ESP, TPMS, Gateway, Steering, Radio, Air conditioning, ect.) to✔read ECU info, ✔read/clear codes, ✔view live data stream, ✔retrieves freeze-frame, ✔perform active tests, and more. With just a simple click, it provides you with accurate and in-depth diagnostics.
- Dual WiFi & 10.1" Touchscreen: Provides a stable, high-speed wireless link 3x faster than bluetooth, and a responsive, professional interface. Topdon ONE obd2 scanner diagnostic tool ensures smooth, non-lagging diagnostic scan, boosting mechanic efficiency
- J2534 Pass-Thru Support: The included ONE VCI supports the J2534 standard, allowing it to function as a pass-thru device when paired with OEM diagnostic software.Through TOPDON’s RLink platform, technicians can perform dealer-level coding, expanding in-house capabilities without investing in multiple factory automotive scan tools
- OE Topology Mapping: Visualize the vehicle’s ECU network exactly as it’s built.Zoom, pan, and highlight specific modules to pinpoint component issues with precision.Topology mapping displays real-time communication between modules
- 50 Plus Service Functions: Covers high-demand services like ADAS calibration, DPF regen, TPMS reset, ABS bleed, and throttle adaptation.Expands your service menu, allows you to charge premium rates, and turns away zero jobs due to lack of tooling. Vehicle-specific functionality may vary
- Advaned ECU Coding: 10 of the most serviced brands in North America, including full ECU coding and flash hidden support for BMW, VW, Au-di, Benz, Porsche, Toyota, Ni ssan and more. Enables module replacement, feature customization, and personal settings with automatic backup or restore.Lets your shop safely offer high-margin customization services, attracting more customers and boosting profit
- Bi-Directional Control, Quickly Locate Problems: Turn your phone into a professional diagnostic tool. You can send commands from your phone to the ECU to test injectors, cooling fans, headlights, A/C clutch, windows, wipers, and more. See which one doesn't respond. Helps you quickly locate the problem and save time. No need to tear things apart, avoid blind disassembly.
- Flexible Subscription, Choose Advanced Features as Needed: TopScan Lite provides free-for-life access to core diagnostics, including full system scan, code reading, performance tests, and repair information. After purchase, advanced features (bi-directional control, service operations, live data, code clearing, and AI functions) are free-for-the-first-year. After the first year, if you want to use advanced features, you need to subscribe on a monthly, quarterly, or yearly basis. As new models and reset functions are updated, the tool will also be continuously upgraded.
- Full System Diagnostics, No Fault Hides: Unlike basic diagnostic tools that only cover 4 systems, TopScan can scan all systems. Read and clear trouble codes, view live data streams, and generate a complete vehicle health report – all issues are clear at a glance. Covers 10,000+ vehicle models and is compatible with 99.99% of vehicles.
- AI Assistant - TopFix: Think of TopFix as your personal AI mechanic. It leverages a repair database and OEM data to deliver clear, step-by-step repair solutions. Features include AI Q&A, one-click translation, and a full repair log, making your diagnostic process simpler and more efficient.
- 8+ Hot Resets, Keep Your Car in Top Shape: One-tap resets for oil, throttle, EPB, steering angle, DPF, ABS, BMS, and airbag. It enables car owners to easily perform essential maintenance, ensuring the vehicle stays in optimal condition and extends its service life.
Last update on 2026-06-23 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.