ECM Snapshot (Non-CRT Equipped Vehicles)

NOTE: If directed here from TEST TYPE SELECTION under MANUAL OPERATION OF SERVICE MODE, go to step 2).

SNAPSHOT allows the recall of system operating specifications present at the exact time an ECM malfunction code was set. Up to 3 snapshots may be recalled. In addition, one snapshot may be triggered on demand. To enter snapshot, complete the following:
- Enter self-diagnostics. See ENTERING SELF-DIAGNOSTICS.
- Display trouble codes stored in memory. See DISPLAYING TROUBLE CODES.
- Select ECM system for testing. See SYSTEM SELECTION under MANUAL OPERATION OF SERVICE MODE.
- Select SNAPSHOT test type. See TEST TYPE SELECTION under MANUAL OPERATION OF SERVICE MODE.
  NOTE: To cancel snapshot test type selection and activate a repeat of specific test type selection process, depress OFF button on ECCP.
Immediately following selection of SNAPSHOT?, system will display message SNAP DONE. This message appears for 3 seconds to indicate all ECM data and inputs have been stored in memory. Following this 3 second information storage verification, display will automatically proceed to first available snapshot test type (i.e., SNAP DATA? or SNAP INPUTS?).
At this point, depressing FAN DOWN button will display the next available snapshot test type. Display may be toggled between SNAP DATA? and SNAP INPUTS?.
Depressing FAN UP button with SNAP DATA? or SNAP INPUTS? displayed will select that particular test type.
At this point, display is controlled as it would be for non-snapshot data and inputs displays; however, all values and status information represents memorized vehicle conditions. See EXPLANATION OF SPECIFIC TEST SELECTION and MAKING SPECIFIC TEST SELECTION under MANUAL OPERATION OF SERVICE MODE.
Depressing FAN UP key with ECM SNAPSHOT? displayed will display SNAPSHOT TAKEN message to indicate that new information has been stored in memory.