GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Cadillac
🢒
2005
🢒
DeVille
🢒
Transmission/Transaxle
🢒
Automatic Transaxle - 4T80-E
🢒 Automatic Transmission Controls Schematics
Figure
1:
PCM Power and Grounds
Master Electrical Component List
Transmission General Description
Solenoids and Stop Lamp Switch
PCM IGN and IGN1 Fuses
Underhood Fuse Block Battery Voltage
ALDL, PCM BATT, and I/P Fuses
RR BLO, RRDR MDL, HVAC BAT, STOP LP, IGN SW, and TSIG/HAZ Fuses
Ignition Switch
Starting System
Ignition Switch
Ignition Switch
G100
Figure
2:
Stop Lamp Switch and Transaxle Solenoids
Master Electrical Component List
Electronic Component Description
Sensors
PCM Power and Ground
SIR, VENT SOL, and IGN 1 Fuse and IGN 1 Relay
OXY SEN, CR CONT, and TRANS Fuses
Switches and CCM Power and Gruond
Figure
3:
Sensors
Master Electrical Component List
Electronic Component Description
Internal Mode Switch and VSS
Solenoids and Stop Lamp Switch
G100
Figure
4:
Transmission Internal Mode Switch (IMS) and VSS
Master Electrical Component List
Electronic Component Description
Sensors
G100