Getting Started

Chrysler On-Board Diagnostics

 

 

System

Long Name

Years

Description

 

 

SMEC

Single Module Engine

1989–1990

Used a 6-pin Serial Communication Interface (SCI)

 

 

Controller

DLC and has bidirectional capability.

 

 

SBEC

Single Board Engine

 

Used two types of DLCs: a 6-pin SCI and a 6-pin LH

 

 

1989*–1995

series.

 

 

Controller

 

 

 

 

The first to allow a tool to reset the EMR light on trucks.

 

 

 

 

 

 

 

OBD II

OBD II Powertrain

1995**– present

Complies with OBD II regulations and uses the OBD II

 

 

PCM

Control Module

 

J1962 DLC.

 

 

 

Jeep/Truck Engine

 

Complies with OBD II regulations and uses the OBD II

2

 

JTEC

1996– present

J1962 DLC.

 

Controller

The JTEC system is used on light-duty trucks and

 

 

 

 

 

Jeeps

 

 

 

 

 

*In 1989, the SBEC system was installed in selected vehicles with 3.0L V6 engines.

**Some vehicles in 1995 were equipped with the OBD II PCM.

OBD II stands for On-Board Diagnostics version II. OBD II is a system that the Society of Automotive Engineers (SAE) developed to standardize automotive electronic diagnosis. Technicians now can use the same tool to test any OBD

IIcompliant vehicles without special adapters. The SAE established guidelines that provide:

a universal diagnostic test connector, called the data link connector (DLC), with dedicated pin assignments.

a standardized location for the DLC, visible under the dash on the driver’s side.

a standardized list of diagnostic trouble codes (DTCs) used by all manufacturers.

a standardized list of parameter identification (PID) data used by all manufacturers.

the ability of the vehicle system to record a freeze frame of the operating conditions when a fault occurs.

expanded diagnostic capabilities that records a code whenever a condition occurs that effects vehicle emissions.

the ability to clear stored codes from vehicle memory with the scan tool.

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Actron 9640 user manual Chrysler On-Board Diagnostics, System Long Name Years Description

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.