GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Power Steering Components


Object Number: 1707641  Size: LF
(1)Steering Angle Sensor (JL4)
(2)Electronic Brake Control Module (EBCM)
(3)Variable Effort Steering Actuator (LD8/L37)
(4)Power Steering Rack
(5)Steering Column Assembly
Figure 2:

Steering Column Components


Object Number: 1657337  Size: LF
(1)Turn Signal/Multifunction Switch
(2)Traction Control Switch (AV8)
(3)Column Shifter Shift Lock Control Solenoid (AV8)
(4)Ignition Key Alarm Switch
(5)Theft Deterrent Module (TDM)
(6)Ignition Switch
(7)Inflatable Restraint Steering Wheel Module Coil
(8)Steering Angle Sensor (JL4)
(9)Telescoping Actuator (N37)
(10)Tilt Actuator (N37)
(11)Tilt/Telescope Switch (N37)