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

Driver Door Power Door Lock


Object Number: 491480  Size: FS
Power Door Systems Components
Power Door Locks Circuit Description
LH Middle Door Power Door Lock (w/V4U)
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Memory Function Switch
Data Link Connector Schematics
Front Door Dimming
G201 - Steering Column
G201 - Steering Column
Figure 2:

LH Middle Door Power Door Lock (w/V4U)


Object Number: 525871  Size: FS
Power Door Systems Components
Power Door Locks Circuit Description
LH Rear Door Power Door Lock
Driver Door Power Door Lock
Handling ESD Sensitive Parts Notice
Data Link Connector Schematics
LH Middle Door Power Window
Figure 3:

LH Rear Door Power Door Lock


Object Number: 491483  Size: FS
Power Door Systems Components
Power Door Locks Circuit Description
Passenger Front Door Power Door Lock
LH Middle Door Power Door Lock (w/V4U)
Handling ESD Sensitive Parts Notice
Data Link Connector Schematics
LH Power Windows
Rear Door Dimming
Figure 4:

Passenger Front Door Power Door Lock


Object Number: 491484  Size: FS
Power Door Systems Components
Power Door Locks Circuit Description
Passenger Front Door Power Door Lock w/ B9Q
LH Rear Door Power Door Lock
Handling ESD Sensitive Parts Notice
Passenger Front Door Power Door Lock w/ B9Q
Passenger Front Door Power Door Lock w/ B9Q
Serial Data Class 2 (2 of 3)
RH Power Windows
Front Door Dimming
Figure 5:

Passenger Front Door Power Door Lock w/ B9Q


Object Number: 491486  Size: FS
Power Door Systems Components
Power Door Locks Circuit Description
RH Middle Door Power Door Lock (w/ V4U)
Passenger Front Door Power Door Lock
Passenger Front Door Power Door Lock
Passenger Front Door Power Door Lock
PWR WDO Circuit Breaker
G201 - Steering Column CKT 451
Figure 6:

RH Middle Door Power Door Lock (w/ V4U)


Object Number: 525872  Size: FS
Power Door Systems Components
Power Door Locks Circuit Description
Right Rear Door Power Door Lock (w/o B9Q)
Passenger Front Door Power Door Lock w/ B9Q
Handling ESD Sensitive Parts Notice
Serial Data Class 2 (2 of 3)
RH Middle Door Power Window
Figure 7:

Right Rear Door Power Door Lock (w/o B9Q)


Object Number: 491487  Size: FS
Power Door Systems Components
Power Door Locks Circuit Description
Power Door Locks ( Middle Door Release w/V4U)
RH Middle Door Power Door Lock (w/ V4U)
Handling ESD Sensitive Parts Notice
Serial Data Class 2 (2 of 3)
RH Power Windows
Rear Door Dimming
Figure 8:

Power Door Locks ( Middle Door Release w/V4U)


Object Number: 609790  Size: FS
Power Door Systems Components
Power Door Locks Circuit Description
Power Door Locks (Middle Door Release w/V4U)
Right Rear Door Power Door Lock (w/o B9Q)
Left Middle Door Module (LMDM) Power, Gd., Inputs and Outputs (w/ V4U)
Power Door Locks (Middle Door Release w/V4U)
AUDIO AMP and EXP LTG/LK Fuses
Power Door Locks (Middle Door Release w/V4U)
G302-V4U/B9Q
G302-V4U/B9Q
Figure 9:

Power Door Locks (Middle Door Release w/V4U)


Object Number: 615153  Size: FS
Power Door Systems Components
Power Door Locks Circuit Description
Power Door Locks ( Middle Door Release w/V4U)
PWR WDO Circuit Breaker
PWR WDO Circuit Breaker
PWR WDO Circuit Breaker
Power Door Locks ( Middle Door Release w/V4U)
Power Door Locks ( Middle Door Release w/V4U)
Right Middle Door Module (RMDM) Power, Gd., Inputs and Outputs (w/V4U)
G302-V4U/B9Q
G302-V4U/B9Q