Ford Historic Self-Test Routines

Continuous Memory Codes (codes set previously under normal driving conditions) are available after reading KOEO Codes. They are indicated as Memory Codes by the scan tool and are transmitted after KOEO Codes.

After viewing and noting the KOEO codes, use the DOWNarrow key to view Continuous Memory codes.

When done, press FUNC to return to

the Ford Function List.

Memory Code

126

 

MAP Sensor

Signal

]

Voltage Higher or

[

Lower Than

Expected~

Read KOER Codes

The Read KOER Codes function activates the KOER (Key-On-Engine-Running) self-test which retrieves KOER DTCs that are present when the engine is running.When the trouble condition is inactive, the KOER Code will no longer be sent through the data stream. This function also performs a Computed Timing Check for EEC-IV vehicles manufactured from 1984 through 1991.

The DTCs are transmitted in two formats which transmit the same information:

Slow Codes are regular service codes that allow the user to identify the faults with an analog voltmeter or the check engine light. Slow codes are transmitted within 3 minutes.

Fast Codes are transmitted within seconds and must be read with a diagnostic tool. MECS vehicles do not support Fast Codes.

6

!WARNING

!CAUTION

!CAUTION

Exhaust gases are harmful or lethal. Always Operate vehicle in a well-ventilated area.

The KOER test is done with the engine running. Do not over-rev engine. Observe all safety precautions.

Avoid Cooling Fan! It May Turn On During Test.

Select Read KOEO Codes from the Ford Function List and press ENTER.

Ford Function

List

?

1)Read

KOEO

Codes

 

` 2)Read

KOER

Codes [

3)Review Codes

~

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 6 – 3

Page 83
Image 83
Actron 9640 user manual Read Koer Codes, Ford Function List 1Read, Codes ` 2Read, 3Review Codes

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.