• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Glossary

TDC:

Top Dead Center. When a piston is at its uppermost position in the cylinder.

TFP:

Transmission Fluid Pressure

TFT:

Transmission Fluid Temperature (Sensor)

Throttle Body:

A device which performs the same function as a carburetor in a fuel injection system. On a throttle body injection (TBI) system, the throttle body is both the air door and the location of the fuel injectors. On port fuel injection systems (PFI, MPFI, SFI, etc.), the throttle body is simply an air door. Fuel is not added until the injectors at each intake port are activated. In each case, the throttle body is attached to the accelerator pedal.

TPS:

Throttle Position Sensor. Potentiometer-type sensor connected to the throttle shaft. Its voltage signal output increases as the throttle is opened. The PCM uses this signal to control many systems such as idle speed, spark advance, fuel delivery, etc.

Traction Assist:

Assist in traction with brakes only.

Trip:

Vehicle operation for a period of time so the systems can be monitored.

TTS:

Transmission Temperature Sensor. A resistance sensor mounted in the transmission housing in contact with the transmission fluid. It sends a voltage signal to the PCM indicating the temperature of the transmission.

VECI:

Vehicle Emission Control Information. A decal located in the engine compartment containing information about the emission control systems found on the vehicle. The VECI is the authoritative source for determining whether a vehicle is OBD II compliant.

VIN:

Vehicle Identification Number. This is the factory-assigned vehicle serial number. This number is stamped on a number of locations throughout the vehicle, but the most prominent location is on top of the dashboard on the driver’s side, visible from outside the car. The VIN includes information about the car, including where it was built, body and engine codes, options, and a sequential build number.

VSS:

Vehicle Speed Sensor. Sends a frequency signal to the PCM. The frequency

increases as the vehicle moves faster to give the PCM vehicle speed B information used to determine shift points, engine load, and cruise control functions.

VTD:

Vehicle Theft Deterrent

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Actron 9640 user manual Tdc, Tfp, Tft, Tps, Tts, Veci, Vin, Vss, Vtd

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.