Description of Diagnostics

ISAT Diagnostics
- The Traction Control System (TCS) control module is linked to the Intelligent Saab Tester (ISAT) via pin 9
- The link is dual-directional and has both input and output signals.
- The data link connector is in front of the right-hand front seat.
- With the ignition in the drive position, the voltage on pin 9 is the same as the battery positive while the ISAT is connected, and 0 Volts when the ISAT is not connected.
- In order to enable communication between the ISAT and the TCS control module:
the ignition should be in the ON position.
the engine speed should be greater than 1500 rpm (if the engine is running)