Input and Output Speed Sensor Replacement

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Replacing Input and Output Speed Sensor

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedures Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle . Remove the transmission fluid pan and filter. Refer to Automatic Transmission Fluid, Fluid Pan and/or Filter Replacement . Remove the upper and lower valve body assembly. Refer to Control Valve Lower Body and Upper Body Replacement .
1	Speed Sensor Electrical Connector
2	Input and Output Speed Sensor Assembly Bolts (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 12 N.m (106 lb in)
3	Input and Output Speed Sensor Assembly Clips (Qty: 2) TIP: Inspect the wiring harness clips for damage replace if necessary.
4	Input and Output Speed Sensor Assembly