WARNING SYSTEMS – GMC Sierra 2500 HD 2004 – SYSTEM WIRING DIAGRAMS

WARNING SYSTEMS

Warning Systems Wiring Diagram (1 of 2) for GMC Sierra 2500 HD 2004

List of elements for Warning Systems Wiring Diagram (1 of 2) for GMC Sierra 2500 HD 2004:

• (behind left side of dash, near left "a" pillar) g203
• (on left "b" pillar) g305
• (on right "b" pillar) g306
• 5v reference
• A12
• Accessory voltage
• Anl/drl defeat
• Auto
• B11
• B12
• Battery
• Body control module (bcm) (on lower left side of dash, below steering column)
• Crew cab only
• D12
• Dimming input
• Dimming return
• E11
• E12
• G203 (behind left side of dash, near left "a" pillar)
• Ground
• Ground distribution system
• Head
• Headlamp switch
• Headlamps on signal
• Hot at all times
• Hot in acc & run
• Hot in acc, run & start
• Hot in run & start
• I/p relay block (near left kick panel)
• Ignition 0 voltage
• Ignition 1 voltage
• Ignition key alarm switch
• Key in ignition switch
• Left front door ajar sw
• Left i/p fuse block (on lower left side of dash)
• Left rear door ajar sw
• Left rear door latch assembly
• Park
• Park brake sw signal
• Park brake switch (part of park brake assembly)
• Park lamp on signal
• Pnk
• Power distribution system
• Right front door ajar sw
• Right rear door ajar sw
• Right rear door latch assembly
• S212 (in i/p harness)
• S217
• Serial data
• Tbc 2a fuse 15a
• Tbc 2b fuse 15a
• Tbc 2c fuse 15a
• Tbc accy fuse 10a
• Tbc batt fuse 10a
• Tbc ign 0 fuse 10a
• Tbc ign 1 fuse 10a
• Underhood fuse block (at left side of engine compartment)

Warning Systems Wiring Diagram (2 of 2) for GMC Sierra 2500 HD 2004

List of elements for Warning Systems Wiring Diagram (2 of 2) for GMC Sierra 2500 HD 2004:

• (behind right side of dash, near right "a" pillar) g200
• Base
• Computer data lines system
• Data link connector (dlc) (partial) (under left side of dash, below steering column)
• Door ajar switch
• Driver door latch assembly
• Driver door module (ddm) (in driver's door)
• Driver seat belt switch
• Except 6.6l vin 2 6.6l vin 2
• Exterior lights system
• Front passenger door latch assembly
• Front passenger door module (fpdm) (in right front door)
• Ground distribution system
• Ign
• Inflatable restraint sensing & diagnostic module (sdm) (under left front seat)
• Instrument panel cluster (ipc)
• Left door ajar sw
• Left i/p fuse block (on lower left side of dash)
• Left seat belt
• Left turn
• Logic
• Low reference
• Pnk
• Powertrain control module (pcm) or engine control module (ecm) (on left front of engine compartment)
• Radio
• Right i/p fuse block (on lower right side of dash)
• Right turn
• Seat belt
• Serial data
• Sp205 (in i/p harness)
• Tan
• W/convenience package comfort & decor level 3
• W/memory seats