PSCM Centering Procedure
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
After replacing either the steering gear assembly or the power steering control module the PSCM Centering Procedure must be performed. Certain steering symptoms can be corrected by performing the PSCM Centering Procedure such as:
- Poor, or uneven return to center
- Poor, or uneven on center feel
NOTE:
Follow all on-screen instructions displayed on the scan tool in order of appearance.
- Install the scan tool.
- Engine On.
- With the scan tool, under Special Functions, select PSCM Center Procedure and press the Enter key.
- Center the steering wheel.
- Turn the steering wheel 90 degrees to the left.
- Turn the steering wheel 90 degrees past center to the right.NOTE: After centering the steering wheel, remove hands and other objects from the steering wheel and ensure the suspension is relaxed and no bias, or uneven force is being applied to the steering system.
- Center the steering wheel.NOTE: Verify visually the steering wheel is centered by confirming the Steering Wheel Position data parameter reads 0 +/- 1 degree when the steering wheel is centered. If the Steering Wheel Position data parameter reads outside the 0 +/- 1 degree range, repeat the centering procedure.
- Wait until the scan tool screen displays Calibration Complete. If the scan tool displays Procedure Failed, repeat the centering procedure.
- Press the exit key.NOTE: After turning OFF the ignition, allow 25 seconds of wait time before performing any procedures that require the vehicles battery to be disconnected, or module memory loss may occur.
- Turn OFF the ignition.