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Schematic & Flow Chart

WARNING: This page is about a different car, the 1990 Buick Riviera and 1990 Buick Reatta. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Code E041 Supplemental Wiring Schematic - Cam Sensor Signal
G50C14714Courtesy of GENERAL MOTORS CORP.
Fig 2: Code E041 Flow Chart - Cam Sensor Signal
G50B14713Courtesy of GENERAL MOTORS CORP.