Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
CPX-900 Battery Tester Update Information (B23-007)
Reference number: B23-007
CPX-900 BATTERY TESTER UPDATE INFORMATION
TECHNICAL SERVICE BULLETIN
| ACURA: | All Models |
INTRODUCTION
The software for the CPX-900 Battery Tester is updated periodically to fix software bugs and enhance the tool's functionality. You can download software for your CPX-900 using WiFi and the Internet. It is extremely important to use the latest CPX-900 software to ensure that the current battery testing procedures are used.The CPX-900 software must be updated promptly after receiving notification from an iN message or other Acura communication. If an out-of-date version is used, battery replacements will not be covered under warranty.
CPX-900 UPDATE REQUIREMENTS
- CPX-900 Battery and Electrical System Analyzer: P/N MTRCPX900PBARA.
- Internet access via WiFi (Go to WIFI SETUP for requirements).
To order the CPX-900 Battery and Electrical System Analyzer; go to the AcuraTool and Equipment program catalog on the iN (select Service > Service Bay > Tool and Equipment Program > Online Catalog), or call 888-424-6857.
SOFTWARE INFORMATION
The current software version is listed online. Go to the iN (Service > Service Bay > Diagnostic Tools Software Versions). To check the software version on the CPX-900, select Version. Refer to the number listed as CONFIG .
WARRANTY CLAIM INFORMATION
None. This service bulletin is for information only.
CLIENT INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment, and training to correctly and safely maintain your vehicle. These procedures should not be attempted by "do-it-yourselfers," and you should not assume this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an authorized Acura automobile dealer.
CPX-900 UPDATE INSTRUCTIONS
WIFI Setup
To update the CPX-900, it must be connected to the internet via your service department's WiFi network. WIFI settings can be found in SETTINGS>NETWORK>WIFI and select AUTOMATIC to start scanning. For more information see https://hondacpx900.midtronics.com/
System Update Prompt
When an update is available via the update server, the user will be prompted with the following screen to download and install the update. Follow the prompts on the screen to proceed with the update.
Overnight Update
The CPX-900 will update automatically overnight when docked and within WiFi range.
Download and Installation
DO NOT disconnect or shut off the power during the update, as this could cause damage to the unit. The download/update progress will be displayed on the screen of the unit. Confirm the software version by selecting VERSION and confirm it matches the iN message for the software release. You can also confirm the software version on the iN; go to Service > Service Bay > Diagnostic Tools Software Versions.
- If you have more than one CPX-900, repeat the update procedure for each unit.
- If you have any problems updating the CPX-900, call Midtronics Customer Service at 866-592-8054.
END
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.