Points to Remember

ISAT SCAN TOOL POINTS TO REMEMBER

Communication with Trionic
Communication between the ISAT scan tool and the Trionic control module is normally possible:
- With the ignition switch ON,
- When idling.

Fault diagnosis that requires communication at engine speeds higher than 2500 rpm is difficult to accomplish.

At high engine speeds, the Trionic gives priority to its basic functions and the diagnostic function can be switched off. The result of this is that the Trionic is not able to achieve communication with the ISAT scan tool. The ISAT scan tool then shows "CONTACT NOT MADE".

Static Electricity, ESD
Electrostatic discharges on the ISAT scan tool display can destroy it.

Connection
The car has a 10-pin data link connector. It is green in color and is located under the passenger seat. All electronic systems in the car are connected to this data link connector
Connecting and disconnecting the ISAT scan tool to and from the data link connector MUST be done with the ignition switch OFF.

Ending Communication
After completed diagnosis, when communication between the selected system and the ISAT scan tool is to be ended, the command "END" is recommended.

ISAT Scan Tool Software Freeze
When using the ISAT scan tool, the software can freeze, where the screen either freezes or goes blank.

The cause is internal software faults in the ISAT scan tool. It does not help to press keys, and the only way to reset the ISAT scan tool program is to disconnect the internal batteries and short the two terminals.

IMPORTANT: A faulty battery can jeopardize communication between the car and the ISAT scan tool.