LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Oldsmobile >> 1997 >> Regency >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Engine Controls - Tests W/Codes) >> Diagnostic Trouble Codes >> DTC P1663 - Generator Light Control Circuit >> Circuit Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit Description

WARNING: This page is about a different car, the 1998 Buick Riviera. However, it is still accessible from the selected car via links, so may be relevant.

PCM turns on bulb, LED or driver information center indicator by supplying ground through the PCM.

Conditions for setting DTC: