LEMON Manuals: Even more car manuals for everyone: 1960-2025

Home >> Saturn >> 2000 >> LS2 Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1637: Generator "L" Terminal Circuit - Low Input >> Circuit Description

April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit Description

ECM continuously monitors signal from generator. If ECM detects low voltage on generator circuit, DTC will set.

scientia non olet · About LEMON Manuals