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

Engine Control Module (ECM)


Object Number: 444184  Size: LF
(1)ECM Connector C1 (Part of the Motronic Harness)
(2)Engine Control Module
(3)ECM Connector C2 (Part of the I/P Harness)
(4)ECM Ground
Figure 2:

Cruise Control Release Switch


Object Number: 787926  Size: LF
(1)Cruise Control Release Switch
Figure 3:

Stop Lamp Switch


Object Number: 787929  Size: LF
(1)Stop Lamp Switch Connector
(2)Stop Lamp Switch