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Home >> GMC >> 2006 >> Yukon Denali >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Transfer Case - NVG 246-NP8 - Service & Diagnosis) >> Description and Operation >> Transfer Case Description and Operation >> Vehicle Speed Sensor

Vehicle Speed Sensor

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One of the two speed sensors on the rear output shaft is the vehicle speed sensor (VSS) input to the powertrain control module (PCM). The PCM sends this information to the transfer case shift control module via the Class 2 serial data bus.