Circuit Description
WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2002 Saturn Vue, 2002 Pontiac Montana, 2002 Pontiac Aztek, 2002 Oldsmobile Silhouette, and 2002 Oldsmobile Bravada. However, it is still accessible from the selected car via links, so may be relevant.
The ignition relay supplies ignition voltage to glow plugs, Fuel Injection Control Module (FICM), Engine Control Module (ECM), fuel rail pressure regulator, Mass Air Flow (MAF) sensor, fuel heater, A/C compressor relay, Daytime Running Lights (DRL) and rear defogger.