LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 1992 >> Seville Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Parameters >> Pcm Snapshot
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Pcm Snapshot

Selection of SNAPSHOT test type while in PCM mode will allow recall of snapshot recorded at time of setting of last PCM trouble code. Additionally, one may trigger setting of a snapshot upon demand. Selecting snapshot (by pushing HI button) while in PCM mode will display EXXX (XXX being 3-digit code that recorded snapshot). While selecting snapshot, any of following actions may be taken to control display.

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

2) Depressing LO button will allow scrolling through list of PCM diagnostic codes for which PCM has stored a snapshot for. Pressing LO button will result in TAKE PCM SNAPSHOT? display. Responding LO will return test to first EOXX SNAPSHOT? display.

3) Depressing HI button will cause PCM SNAP DATA? or PCM SNAP INPUTS? to be displayed and will select that test type. At this point, display is controlled as it would be for non-snapshot data and input displays; however, all values and status information represent memorized vehicle conditions.