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

Lower Left Side of Instrument Panel


Object Number: 1831798  Size: LF
(1)Brake Pedal Position Sensor
(2)Accelerator Pedal Position (APP) Sensor
(3)Data Link Connector (DLC)
(4)Data Link Resistor
(5)Clutch Apply Sensor(MA5)
(6)X500
(7)X501
(8)Steering Angle Sensor (JL4)
Figure 2:

Steering Wheel Components (3-Spoke)


Object Number: 1888639  Size: LF
(1)Steering Wheel Control Switch - Left (K34)
(2)Steering Wheel Control Switch - Right (UK3)
(3)Horn Switch