Scanner Functional Tests
39
z Arming triggers:
1. Select the Trigger icon.
2. Select Arm Triggers.
The trigger point lines change color to indicate an armed condition
(Figure 4-32).
All set PID triggers are armed simultaneously (if more that one is set). Once armed
it remains armed until you clear it or the trigger is activated.
Figure 4-32
About Activated Triggers
A trigger is activated (displays red flag) when a PID value meets an upper/
lower limit (trigger point).
When a trigger is activated:
• Data collection is briefly paused as the Scanner captures a short recording of
PID data (before and after the trigger event), and saves it as a data file.
• A gray cursor line is displayed to indicate the point at which the data was
paused or saved.
• An audible alarm is sounded
• A message displays indicating a data file was saved.
• Data collection continues.
• The activated PID trigger is disarmed. Note - if a different PID trigger is
activated subsequently, an additional data file will be recorded.
• A red cursor line is displayed on the graph of the PID with the activated trigger
to indicate where the trigger occurred. A green cursor line is displayed on all the
other PID graphs to indicate their relationship to where the trigger occurred.
• The trigger menu options are:
- Clear Trigger—deletes the highlighted trigger
- Arm Trigger—arms the trigger to capture data
- Clear All Triggers—deletes all set triggers
Figure 4-33
4.7 Functional Tests
Home Screen: Scanner (Vehicle Identification) > (Vehicle System Menu) >
(Vehicle System Main Menu) > (Functional Tests)
Functional Tests provides access to vehicle-specific subsystem tests.
Functional Test functionality, availability, navigation and terminology is vehicle
manufacturer dependent, and will vary.
Typical functional tests:
• Information Tests—read-only tests (i.e. selecting “VIN” to display the VIN of
the vehicle).
• Toggle Tests—component state change tests (i.e. switching a solenoid, relay,
or switch, between two operating states).
• Variable Control Tests—command variable value tests (i.e. varying spark
timing in 1° increments or EGR valve duty cycle in 10% increments).
• Reset Tests—reset the adaptive, or learned, values that are stored in the
vehicle electronic control module memory.
• Scripted Tests—preconfigured tests that are run when performing certain
repairs (i.e. bleeding brakes with ABS).
To Next Page
Loading...
Need help?
General
