GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Pontiac
🢒
2004
🢒
Bonneville
🢒
Transmission/Transaxle
🢒
Automatic Transaxle - 4T80-E
🢒 Automatic Transmission Controls Schematics
Figure
1:
PCM Power, Ground, Serial Data, and MIL
Underhood Fuse Block B+ Bus - 4.6L
Underhood Fuse Block B+ Bus - 4.6L
DIM, PCM, and EBCM Signals Traction, ABS, Brake, Battery and MIL Indicators
Serial Data Class 2
Ignition Switch Positions
Starting Control
Rear Fuse Block - B+ Bus
G108, G110, and G111 - 4.6L
Master Electrical Component List
Automatic Transmission Inline 20-Way Connector Description
Stop Lamp Switch and Transaxle Solenoids
OBD II Symbol Description Notice
Figure
2:
Stop Lamp Switch and Transaxle Solenoids
Rear Fuse Block - B+ Bus
IGN-1, Vent Sol, and SIR Fuses
Power and Ground - 3.8L
Underhood Fuse Block B+ Bus - 4.6L
Master Electrical Component List
Automatic Transmission Inline 20-Way Connector Description
Sensors
PCM Power, Ground, Serial Data, and MIL
OBD II Symbol Description Notice
Figure
3:
Sensors
Master Electrical Component List
Automatic Transmission Inline 20-Way Connector Description
Transmission Internal Mode Switch (IMS) and VSS
Stop Lamp Switch and Transaxle Solenoids
OBD II Symbol Description Notice
Figure
4:
Transmission Internal Mode Switch (IMS) and VSS
G108, G110, and G111 - 4.6L
Master Electrical Component List
Automatic Transmission Inline 20-Way Connector Description
Sensors
OBD II Symbol Description Notice