GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 GMC C Sierra - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E 🢒 Entertainment Component Views
Figure 1:

Console Harness
Object Number: 1407819 Size: LF
(1)Auxiliary Power Outlet - Front Connector
(2)S333
(3)S307
(4)S303
(5)Rear Seat Audio (RSA) Controller Connector
(6)Auxiliary Power Outlet - Console Connector
(7)Audio Amplifier Connector C2
(8)Audio Amplifier Connector C1
(9)Cigar Lighter
(10)C306
(11)Speaker - Subwoofer Connector
(12)Speaker - Subwoofer (UQ7)
Figure 2:

Radio (UB7 w/Y91 Shown, Others Similar)
Object Number: 851267 Size: LF
(1)Radio Connectors
(2)Radio Antenna
(3)Instrument Panel
(4)HVAC Control Module
(5)Radio
(6)HVAC Control Module Connectors
Figure 3:

Speaker-LR (Extended Cab)
Object Number: 350029 Size: MF
(1)Inner Body Panel-LH
(2)Speaker Connector - Harness
(3)Electrical Connector - Speaker
(4)Speaker-LR
Figure 4:

Speaker-RF Door
Object Number: 851249 Size: LF
(1)Door-RF
(2)Speaker-RF Door
(3)Speaker-RF Door Connector
Figure 5:

Speaker-LF Door
Object Number: 851251 Size: LF
(1)Door-LF
(2)Speaker-LF Door
(3)Window Motor-Driver Connector
(4)Speaker-LF Door Connector
(5)Driver Door Module (DDM) Connectors
(6)Outside Rearview Mirror-Left Connector
Figure 6:

Speaker-LF Tweeter (RF Similar)
Object Number: 851254 Size: LF
(1)Left A-Pillar Trim Panel
(2)Speaker-LF Tweeter
(3)Speaker-LF Tweeter Connector
Figure 7:

Speaker-LR Door (RR Similar)
Object Number: 851258 Size: LF
(1)Door-LR
(2)Window Motor-LR
(3)Speaker-LR
Figure 8:

Splice Pack SP250 (UQ7)
Object Number: 1170964 Size: LF
(1)Instrument Panel
(2)C202
(3)SP250
Figure 9:

Rear of Center Console
Object Number: 851270 Size: LF
(1)Center Console
(2)Rear Seat Audio (RSA)/Rear HVAC Controller
(3)Auxiliary Power Outlet-Console
Figure 10:

Steering Wheel
Object Number: 851273 Size: LF
(1)Steering Wheel Audio Controls-Left
(2)Inflatable Restraint Steering Wheel Module - C4
(3)Steering Wheel Audio Controls-Right
(4)Steering Wheel Driver Information Center (DIC) Controls-Right
(5)Inflatable Restraint Steering Wheel Module - C3
(6)Inflatable Restraint Steering Wheel Module - C2
(7)Steering Wheel Driver Information Center (DIC) Controls-Left
(8)Steering Column
(9)Steering Wheel
Figure 11:

Remote Playback Device-CD Player
Object Number: 851274 Size: MF
(1)Lower I/P Bezel
(2)Remote Playback Device-CD Player
Figure 12:

Digital Radio Receiver
Object Number: 851276 Size: LF
(1)Right Side of Instrument Panel
(2)Digital Radio Receiver
(3)Digital Radio Receiver Connector
Figure 13:

Rear Seat Entertainment (RSE) Assembly
Object Number: 851278 Size: LF
(1)Headliner
(2)Rear Seat Entertainment (RSE) Assembly
(3)Rear Seat Entertainment (RSE) Display
(4)Intermediate Bracket
(5)Fir Tree Retainer
Figure 14:

Steering Wheel and Column Sub-System Components
Object Number: 856748 Size: LF
(1)Steering Wheel Audio Controls - Left
(2)Passlock Sensor Connector
(3)Ignition Key Alarm Switch
(4)Ignition Lock Cylinder Control Actuator
(5)Ignition Lock Cylinder Control Actuator Connector
(6)Ignition Switch
(7)Ignition Key Cylinder
(8)Steering Wheel Audio Controls - Right
(9)Horn Switch
(10)Steering Wheel Driver Information (DIC) Controls - Right
(11)C277
(12)Steering Wheel Driver Information Center (DIC) Controls - Left
(13)Turn Signal/Multifunction Switch