Circuit/System Verification

WARNING: This page is about a different car, the 2012 GMC Yukon XL and 2012 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

If the condition is intermittent or cannot be duplicated, disconnect the connectors and add Nyogel lubricant 760G. This procedure will correct the high resistance condition due to terminal fretting corrosion.

Ignition ON.
Verify the scan tool Steering Wheel Position parameter corresponds to the actual steering wheel position as the steering wheel is turned through its entire range of motion.
- If the parameter does not correspond with the steering wheel position or the reading is erratic
  Refer to Circuit/System Testing.
- If the parameter corresponds with the steering wheel position
Verify the scan tool Digital SWPS Phase A parameter cycles between Low and High as the steering wheel is centered and then turned through its entire range of motion.
- If the parameter does not cycle between Low and High as the steering wheel is turned
  Refer to Circuit/System Testing.
- If the parameter cycles between Low and High as the steering wheel is turned
Verify the scan tool Digital SWPS Phase B parameter cycles between Low and High as the steering wheel is centered and then turned through its entire range of motion.
- If the parameter does not cycle between Low and High as the steering wheel is turned
  Refer to Circuit/System Testing.
- If the parameter cycles between Low and High as the steering wheel is turned
All OK.