GM Service Manual Online
For 1990-2009 cars only

Automatic Transmission Controls Schematics 4.2L

Figure 1:

Shift Controls and Stop Lamp Switch


Object Number: 1532824  Size: FS
Master Electrical Component List
Transmission Component and System Description
Control Module References
Pressure Controls, Temperature, and VSS
OBD II Symbol Description Notice
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGNA1 Fuse
G104, G105 and G107
B+ Bus - Underhood Fuse Block - 2 of 2
BACK UP, BTSI, IGN E, and TRLR B/U Fuses
BACK UP, BTSI, IGN E, and TRLR B/U Fuses
BACK UP, BTSI, IGN E, and TRLR B/U Fuses
G104, G105 and G107
BACK UP, BTSI, IGN E, and TRLR B/U Fuses
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGNA1 Fuse
G201 - 1 of 2
G201 - 1 of 2
B+ Bus - Rear Fuse Block
4WD, BRK, FRT WPR, HVACI, IGN0, and TCM Fuses
Figure 2:

Pressure Controls, Temperature, and VSS


Object Number: 1532825  Size: FS
Master Electrical Component List
Transmission Component and System Description
Control Module References
PNP Switch, Serial Data, and Indicators
Shift Control and Stop Lamp Switch
OBD II Symbol Description Notice
Automatic Transmission Schematic Icons
Automatic Transmission Schematic Icons
Figure 3:

PNP Switch, Serial Data, and Indicator


Object Number: 1532826  Size: FS
Master Electrical Component List
Transmission Component and System Description
Control Module References
Pressure Controls, Temperature, and VSS
OBD II Symbol Description Notice
G108
SP 205

Automatic Transmission Controls Schematics 5.3L

Figure 1:

Module Power, Ground, Serial Data, and Stop Lamp Switch


Object Number: 1532828  Size: FS
Master Electrical Component List
Electronic Component Description (TCM)
Control Module References
Transmission Controls
OBD II Symbol Description Notice
ABS, ATC, BLOWER, CIGAR, ECAS, ELEC BRK, FLASH, IPC/DIC, ST/LP, TRAILER, VEH CHMSL, and VEH STOP Fuses
AIR, EAP, ECM, PCMB, TBC 1, and TCM/CANISTER Fuses
ABS, ATC, BLOWER, CIGAR, ECAS, ELEC BRK, FLASH, IPC/DIC, ST/LP, TRAILER, VEH CHMSL, and VEH STOP Fuses
ABS, ATC, BLOWER, CIGAR, ECAS, ELEC BRK, FLASH, IPC/DIC, ST/LP, TRAILER, VEH CHMSL, and VEH STOP Fuses
ABS, ATC, BLOWER, CIGAR, ECAS, ELEC BRK, FLASH, IPC/DIC, ST/LP, TRAILER, VEH CHMSL, and VEH STOP Fuses
Ignition Switch - ACCY/RUN/START, RUN, START Bus Bars and IGNA1 Fuse
B+ Bus - Underhood Fuse Block - 1 of 2
G104, G105 and G107
G104, G105 and G107
ABS, ATC, BLOWER, CIGAR, ECAS, ELEC BRK, FLASH, IPC/DIC, ST/LP, TRAILER, VEH CHMSL, and VEH STOP Fuses
B+ Bus - Underhood Fuse Block - 2 of 2
ECMI ENG 1, O2, SIR, TAC, and TRANS Fuses
ECMI ENG 1, O2, SIR, TAC, and TRANS Fuses
G108
Ignition Switch - ACCY/RUN, RUN/START Bus Bars and IGNB1 Fuse
G201 - 1 of 2
G201 - 1 of 2
Power, Ground, Data Link Connector
B+ Bus - Rear Fuse Block
4WD, BRK, FRT WPR, HVACI, IGN0, and TCM Fuses
Figure 2:

Transmission Controls


Object Number: 1532829  Size: FS
Master Electrical Component List
Transmission Component and System Description
Control Module References
Pressure Controls, Temperature, and VSS
Module Power, Ground, Serial Data, and Stop Lamp Switch
OBD II Symbol Description Notice
G104, G105 and G107
B+ Bus - Underhood Fuse Block - 2 of 2
ECMI ENG 1, O2, SIR, TAC, and TRANS Fuses
ECMI ENG 1, O2, SIR, TAC, and TRANS Fuses
G104, G105 and G107
G108
Figure 3:

Pressure Controls, Temperature, and VSS


Object Number: 1532831  Size: FS
Master Electrical Component List
Electronic Component Description (TCM)
Control Module References
Transmission Controls
OBD II Symbol Description Notice
Automatic Transmission Schematic Icons
Automatic Transmission Schematic Icons