LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 1987 >> Eldorado >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> DFI System Theory/Operation >> Operation >> Diagnostic System Operation >> Switch Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Switch Test

This series of tests checks operation of various switches which provide input to ECM. During this operation, specific switches are cycled and ECM analyzes the action to determine if switches are operating properly.