Berdman21

What motor do you have? If it is the 4.2 L I6 then it should be the same as all GM, such as envoy, trailblazer and such. The VSS wire is on the PCM, which is mounted on the Drivers Side of the Engine (3 connectors side by side BLK/BLK/BLU). It is pin 32, DK Green/White on the Blue Connector. Reverse wire is the Light Green wire in the Fuse Box under the Left Rear Seat

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