Circuit/System Testing
WARNING: This page is about a different car, the 2009 GMC Yukon, 2009 Chevrolet Tahoe, 2009 Chevrolet Suburban, and 2009 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Inspect the RPS sensor for damage at the mating surface with the rotational position shaft.
- If the RPS sensor shows damage at the mating surface then replace the RPS sensor. If no damage is found attempt to turn the shaft while the transfer case in stationary in one mode.
- If the shaft can be turned then internal damage has occurred to this shaft, refer to transfer case disassemble and inspection and repair as necessary. If no damage is found and the RPS sensor seems to show a steady degrees rotation reading on the scan tool data list then replace the transfer case two/four wheel drive actuator.