GM Function List ` 4)Record Data 5)Review Data 6)Field Service

GM Historic (OBD I) Diagnostics

Record Data

The Record Data function records vehicle PIDs (Parameter Identification Data) while the vehicle is parked or being driven. This function is mainly used for diagnosing intermittent driveability problems that cannot be isolated by any other method. The tool records data based on time (5 frames prior to the start of the recording, and for a duration after). The time after depends on the vehicle data rate. The Record Data function allows diagnosis of an intermittent problem by analyzing data leading up to the problem, during the problem, and possibly after the problem, depending on duration.

Select Record Data from the GM

Function List and press ENTER.

Follow all instructions on the display.

✓ The tool can maintain only one recording at a time. Be sure to

thoroughly review the old recording before erasing it.

?

]

[

~

!! WARNING

✓This function Running.

Never operate the tool while driving. Have another person assist with the operation of the tool.

can be performed with the ignition key On-Engine Off or

5

If a recording currently exists in memory, a message to Erase Old Recording is displayed. The tool stores only one recording at a time, so be sure to review it before erasing it.

Multiple Group Vehicles

Cannot Record. Old

Recording Filled Up

Memory. Erase Old?

<YES> NO ~

Some vehicles display a Select Group screen for recording data. In these cases, only one group of data can be recorded at a time. Recording another group of data overwrites the present one.

In the next screen, select a method to trigger a recording. Manual Trigger will begin recording when the ENTER key pressed. Trigger On Codes will begin recording when a DTC is stored in the PCM.

Pick Trigger Method

`1)Manual Trigger 2)Trigger On Codes

~

Select a method and press ENTER. The tool will establish a communication link with the PCM.

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Actron 9640 user manual Pick Trigger Method ` 1Manual Trigger 2Trigger On Codes, Select Record Data from the GM
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9640 specifications

The Actron 9640 is a distinguished automotive diagnostic tool that has garnered attention for its versatility and user-friendly design. Designed for professional mechanics and DIY enthusiasts alike, the Actron 9640 stands out for its comprehensive features and advanced technologies that simplify vehicle diagnostics.

One of the main features of the Actron 9640 is its ability to read and erase diagnostic trouble codes (DTCs) for a wide variety of vehicles. This tool supports OBD II protocols, allowing it to communicate with a vast array of vehicles produced after 1996. The device provides clear, detailed descriptions of any trouble codes, enabling users to quickly identify and address issues. This is vital for efficient troubleshooting and ensures that users can make informed decisions about repairs.

Another significant advantage of the Actron 9640 is its built-in memory. The device can store code definitions and repair solutions for easy reference during diagnostics. Additionally, it features a robust data logging capability, allowing users to capture live data in real-time, which is essential for performing thorough diagnostic evaluations. This functionality helps in monitoring engine performance, thereby assisting in pinpointing issues that may not always trigger a check engine light.

The Actron 9640 also incorporates a user-friendly interface, equipped with a large LCD display that presents information in an easy-to-read format. Its intuitive navigation and menu options cater to users of varying expertise, making it accessible to beginners while still offering the depth of features that seasoned professionals rely on.

In terms of connectivity, the Actron 9640 is designed to be compatible with various vehicles, supporting multiple protocols beyond OBD II, including CAN, J1850, and ISO9141. This broad networking capability ensures that the device can diagnose problems across different car brands and models.

Built with durability in mind, the device features a robust housing that can withstand the rigors of a workshop environment. The ergonomic design ensures a comfortable grip during use, making it practical for extended periods of diagnostics.

Overall, the Actron 9640 combines advanced features, comprehensive functionality, and ease of use, making it an excellent choice for anyone looking to conduct reliable automotive diagnostics. Whether you're a professional mechanic or a casual car owner, the Actron 9640 can help you maintain your vehicle's performance effectively.
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