Scan Tool Test Modes
NOTE:
Available test modes depend on vehicle equipment. Not all modes are available on all vehicles.
- Data List Mode
Mode continuously monitors wheel speed data, brake switch status, ABS/TCS status, and other inputs and outputs. - DTC History Mode
Mode displays diagnostic trouble code history data. Fault occurrence information is stored for first 5 trouble codes stored and very last trouble code stored. Fault occurrence information stored consists of trouble code number, number of failure occurrences and number of ignition cycles since fault first and last occurred. - DTC Mode
Mode displays diagnostic trouble codes. Both ignition cycle and history may be displayed or cleared. - Snapshot Mode
Mode will help isolate intermittent problems by capturing data before and after fault condition. Snapshots cannot be read until all stored DTCs are cleared.If MANUAL TRIGGER is selected, Tech 2 will wait for ENTER to be pressed before storing data. Tech 2 stores data from 8 seconds before trigger and 8 seconds after trigger is activated. All stored information can be displayed and examined for conditions which might indicate a problem, but may not set a code.
If AUTOMATIC TRIGGER is selected, Tech 2 will capture data, which deviates from normal conditions but may not set a DTC, such as driving over bumpy roads or railroad tracks. Condition may be caused by loose connections or intermittent wiring problems causing signal to drop out momentarily. While Tech 2 is waiting for a trigger, ENTER key may be used to force a trigger.
- Special Functions
In this mode, the scan tool performs various ABS functional tests to help isolate problems during trouble shooting. - Automated Test
This mode cycles each solenoid valve, pump motor and necessary relays to check component operation.