FCAR Product Manual
17
V1.1
Vehicle diagnosis:
1)
Establish a good communication between the diagnostic program and
the vehicle under test, see 3.2
2)
Select vehicle type, see 3.3.
3)
Perform vehicle diagnosis by “Auto Scan” all systems of the vehicle or
manually selecting and detecting a designated control unit. For details,
see 3.5.
Here we make the detailed instructions.
3.1 Pre-diagnostic technical requirements
3.1.1 Equipment Requirements
F7S series automotive computer fault diagnostics is equipped with a host
and various test connectors when leave factory. In testing, please select
appropriate test connector according to the type of vehicle diagnosis socket.
3.1.2 Vehicle requirements
Turn ignition switch to gear ON;
Vehicle battery voltage should be between 11~14V or 24~27V (subject to the
vehicle's power supply)
Accelerator pedal is in OFF state, that is, the idle coupling point;
Ignition timing and idle speed value should be within the standard range,
