Fuel Pump Electrical Circuit Diagnosis: Notes

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Underhood Fuse/Relay Block

Courtesy of GENERAL MOTORS CORP.

Fig 2: Fuel Pump Electrical Schematic

Courtesy of GENERAL MOTORS CORP.