Circuit Description
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The steering position sensor provides 3 digital signal inputs and 1 analog signal inputs to the rear wheel steering control module. The 3 digital signals are:
- Phase A
- Phase B
- Index pulse
The analog signal is the steering wheel position signal. This is a class 2 signal from the TBC.
The rear wheel position sensor provides 2 discreet analog signal inputs to the rear wheel steering control module. These inputs are:
- Rear wheel position 1 signal
- Rear wheel position 2 signal
The rear wheel steering control module compares the differences between the steering wheel position sensor and the rear wheel position sensor. If the difference exceeds the internal values in the rear wheel steering control module than C0253 will set.