LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 1999 >> Cavalier L4-2.2L VIN 4 >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Engine Control Module >> Description and Operation >> PCM Controlled Warning Lamps
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

PCM Controlled Warning Lamps

The oil pressure switch and the coolant level switch are connected to the Powertrain Control Module (PCM). If a low oil pressure condition, or a low coolant level condition is detected, the PCM will send a signal to the Instrument Panel Cluster (IPC). The IPC will receive this signal from the PCM and the IPC will then illuminate the warning lamp.

The electronic instrument cluster uses 2 telltale lamps. A Low Oil Pressure telltale lamp indicates low engine oil pressure. A Low Coolant Level telltale lamp indicates a low coolant level condition. The purpose of these lamps are to warn the operator of potential engine damaging conditions. If any of the warning lamps are illuminated, then a condition is present that may cause engine damage.
scientia non olet · About LEMON Manuals