GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 Park Avenue 🢒 Transmission/Transaxle 🢒 Shift Lock Control 🢒 Shift Lock Control Schematics
Figure 1:

Auto Trans Shift Lock Control
Object Number: 659805 Size: FS
Master Electrical Component List
Automatic Transmission Shift Lock Control Description and Operation
Transmission Internal Mode Switch
Class 2 Serial Data Line
G202 (4 of 4)
Figure 2:

Automatic Transaxle Internal Mode Switch
Object Number: 659809 Size: FS
Master Electrical Component List
Automatic Transmission Shift Lock Control Description and Operation
A/T Shift Lock Control Solenoid
Power, Ground, and Serial Data
G100, G101, G102 and G103