Snapshot Mode

DESCRIPTION:

Snapshot is a test type that will record all ECM/PCM data and inputs at one instant for review at a later time.

Selection of "SNAPSHOT?" test type while in the ECM/PCM system level will result in the message "SNAPSHOT TAKEN" being displayed with the selected system name preceding it. This message will appear for 3.0 seconds to indicate that all ECM/PCM data and inputs have been stored in memory. After three seconds, the display will proceed to the first available snapshot test type, "SNAP DATA?." While selecting a snapshot test type, any of the following actions may be taken to control the display:

1. Depressing the "OFF" button on the ECCP panel will stop the test type selection process and return the display to the next available system selection.

2. Depressing the "FAN DOWN" button will display the next available snapshot test type. This allows the display to be toggled between SNAP DATA and SNAP INPUTS.

3. Depressing the "FAN UP" button with "SNAP DATA?" or "SNAP INPUTS?" displayed will select that test type. At this point the display is controlled as it would be for non-snapshot data and input displays, however, all values and status information represents memorized vehicle conditions.

4. Depressing the "FAN UP" button with "SNAP EC?" displayed will again display the "SNAP DONE" message to indicate that new information has been stored in memory. Access to this information is obtained the same as previously described.