GM Service Manual Online
For 1990-2009 cars only
RIM -- Auto Leveling Information Data List -- Leveling Sensor Feed: Voltage feed to the suspension position sensor.

RIM -- Auto Leveling Information Data List -- Accum Fault-- Compressor: A defined period of time that the compressor is active with out an exhaust cycle.

RIM -- Auto Leveling Information Data List -- Progress Fault-- Compressor: A defined period of time that the compressor is active and no change is detected by the suspension position sensor.

RIM -- Auto Leveling Information Data List -- Accum Fault--Exhaust: A defined period of time the exhaust is active with out a compressor cycle.

RIM -- Auto Leveling Information Data List -- Progress Fault--Exhaust: A defined period of time the exhaust is active and no change is detected by the suspension position sensor.

RIM -- Auto Leveling Information Data List -- Trim Value: Vehicle trim height value programmed in the RIM.

RIM -- Auto Leveling Information Data List -- Filtered Position Valve: As the vehicle operates the suspension position sensor is monitored, and the information is filtered, to the RIM so it can adjust the suspension.

RIM -- Module Information 1 Data List -- Prom I.D.: The modules internal "PROM" identifier.

RIM - Module Information 1 Data List - Calibration I.D.: This number designates the modules calibration.

RIM- ALC Relearn: This procedure reprograms the RIM with the vehicles ride height specification, per the suspension option.