98 Grand am ground wires

Asked by GuruNX662 Oct 23, 2019 at 06:07 PM about the 1998 Pontiac Grand Am 4 Dr SE Sedan

Question type: Maintenance & Repair

I need to know where the ground wires are to the
Rpm hand on a 98 Grand am Se

1 Answer
26,865

taver91 answered 5 years ago

I suspect that the tach gets its ground from a buss on the flexible circuit board that it attaches to. That buss runs around the board and provides a ground to all devices attached to the board. The board then is attached via an edge connector to a ground lead in the harness connecting it to the car electronics.

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