INTERIOR LIGHTS – GMC Sierra Classic 2500 HD 2007 – SYSTEM WIRING DIAGRAMS

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for GMC Sierra Classic 2500 HD 2007

List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for GMC Sierra Classic 2500 HD 2007:

• A11
• B12
• Battery b+
• Body control module (lower left side of dash, below steering column)
• Cargo lamp low ctrl
• Class 2 data
• Class 2 serial data
• Convenience package comfort & decor level #3
• Ctsy lamp ctrl
• Ctsy lamp on sig
• Ctsy lamp power
• Dome lamp switch
• Door ajar sig
• Door latch assembly (driver)
• Door latch assembly (lr) (crew cab)
• Door latch assembly (passenger)
• Door latch assembly (rr) (crew cab)
• Driver door module (ddm) (in left front door)
• E11
• Front door courtesy lamp (left)
• Front door courtesy lamp (right)
• Front passenger door module (fpdm) (in right front door)
• G200 (behind right side of dash, near right "a" pillar)
• G200 (near right "a" pillar)
• G203 (near left "a" pillar)
• G305 (on left "b" pillar)
• G306 (on right "b" pillar)
• Headlamp switch
• Hot at all times
• I/p fuse block (lower left side of dash)
• I/p relay block (near left kick panel)
• Int lamp defeat sig
• Interior lamp defeat switch
• Junction i/p block (right side of dash, behind access panel)
• Lf door ajar sig
• Low ref
• Lr door ajar sig
• Merchandised package luxury edition
• Rf door ajar sig
• Rr door ajar sig
• S202
• Sp205 (left side of dash)
• Tan
• Tbc 2b fuse 15a
• Tbc 2c fuse 15a
• W/ ye9 or w/ y91
• W/o ye9 or w/o y91
• Y91 =
• Ye9 =

Courtesy Lamps Wiring Diagram (2 of 2) for GMC Sierra Classic 2500 HD 2007

List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for GMC Sierra Classic 2500 HD 2007:

• (in dash harness)
• (in headliner harness between overhead console reading lamps and i/p relay block) s321
• (not used)
• A12
• B10
• C10
• C11
• Cargo lamp
• Convenience package comfort & decor level #3
• Courtesy reading lamps (rear) (crew cab w/ ye9/y91)
• Courtesy/ reading map lamps
• Crew cab w/ ye9/y91
• Crew cab w/ ye9/y91 or extended cab w/ y91
• Dome
• Except w/ ye9/y91
• G200 (near right "a" pillar)
• G203 (near left "a" pillar)
• I/p relay block (near left kick panel)
• Merchandised package luxury edition
• Multi- function accessory switch
• Overhead console
• Reading
• Rear dome lamp
• Regular cab w/ ye9 or extended cab w/ ye9
• Regular or extended cab w/ ye9/y91
• S213
• S345
• Vanity mirror lamp (left)
• Vanity mirror lamp (right)
• W/o ye9 or w/o y91
• Y91 =
• Ye9 =

Instrument Illumination Wiring Diagram (1 of 3) for GMC Sierra Classic 2500 HD 2007

List of elements for Instrument Illumination Wiring Diagram (1 of 3) for GMC Sierra Classic 2500 HD 2007:

• (lower left side of dash, below steering column) body control module
• 2 hi ind
• 2 hi ind control
• 4 hi ind
• 4 hi ind control
• 4 lo ind
• 4 lo ind control
• 5 volt ref
• A11
• A12
• Auto 4wd ind
• Awd ind control
• B pnk
• B11
• Battery b+
• Crew cab only
• Dimming input
• Dimming lo ref
• Drl off
• Drl off ind ctrl
• E12
• Electronic power steering system
• Except hybrid
• Fog lamp rly ctrl
• G305 (left "b" pillar)
• G306 (right "b" pillar)
• Headlamp on
• Headlamp on ind ctrl
• Headlamp switch
• Hot at all times
• Hybrid
• I/p fuse block (lower left side of dash)
• Inst panel dimming
• Instrument panel cluster
• Left rear window switch
• Np1 = transfer case, electric shift control, 2 speed np8 = transfer case active, 2 speed pushbutton control
• Pnk
• Red
• Right rear window switch
• Tbc 2a fuse 15a
• Transfer case shift control module (behind headlamp switch)
• Transfer case shift control switch
• W/ np1
• W/ np8

Instrument Illumination Wiring Diagram (2 of 3) for GMC Sierra Classic 2500 HD 2007

List of elements for Instrument Illumination Wiring Diagram (2 of 3) for GMC Sierra Classic 2500 HD 2007:

• (hybrid) (pto)
• (in console harness)
• (in steering wheel controls harness)
• (left side of engine compt, near battery) underhood fuse block
• (near left "a" pillar)
• (near right "a" pillar)
• B f
• E c
• Except 10 series or crew cab
• G200
• G200 (near right "a" pillar)
• G203
• Garage door opener
• Headlights system
• Hvac control module
• Inflatable restraint i/p module disable switch
• Inflatable restraint steering wheel module coil
• Logic
• Lower left
• Lower right
• Nca
• Overhead console
• Power take off (pto) switch or auxiliary power outlet switch (hybrid)
• Remote playback device-cd player
• S205 (in i/p harness)
• S213 (in i/p harness)
• S260
• S276
• S333
• S345
• Steering column fuse holder
• Steering wheel
• Traction control switch
• Transfer case shift control switch
• Upper left
• Upper right

Instrument Illumination Wiring Diagram (3 of 3) for GMC Sierra Classic 2500 HD 2007

List of elements for Instrument Illumination Wiring Diagram (3 of 3) for GMC Sierra Classic 2500 HD 2007:

• i/p fuse block
• (behind right side of dash) g200
• (in brake clutch harness)
• (in i/p harness)
• (lower left side of dash)
• A11
• Beacon indicator
• C10
• Electronic suspension system
• Exterior lamps system
• Fog lamp ind
• G200 (near right "a" pillar)
• I/p relay block (near left kick panel)
• Junction i/p block (lower left side of dash)
• Lock switch (driver)
• Logic
• Multifunction accessory switch
• Ride indicator
• Roof beacon
• Roof beacon switch
• S202
• S215
• S352
• Selectable ride
• Selectable ride switch
• Sunroof switch
• Window/door
• Window/door lock switch (passenger)