TRANSMISSION – Hummer H2 2003 – SYSTEM WIRING DIAGRAMS

TRANSMISSION

A/T Wiring Diagram for Hummer H2 2003

List of elements for A/T Wiring Diagram for Hummer H2 2003:

• (not used) a
• (top right rear of engine) g103
• 1-2 shift solenoid
• 1-2 ss
• 2-3 shift solenoid
• 2-3 ss
• 3-2 shift solenoid
• 3-2 ss
• 4wd circuit
• 4wd low
• A/t fluid pressure manual valve position switch
• A12
• Automatic transmission
• B11
• B12
• Body control module (top left side of dash)
• Brake fuse 10a
• Brk sw
• C12
• Cls 2 data
• Data link connector (under left side of dash)
• Ect sig
• Engine coolant temperature sensor (rear of engine block)
• F10
• Fluid pressure switches
• Fluid temp sensor
• G203 (lower right side of dash, near kick panel)
• Gnd
• Hot at all times
• Hot in acc, run & start
• Hot in run
• Hot in run & start
• I/p fuse block (lower left side of dash)
• Ign
• Ign 0 fuse 10a
• Ign e fuse 10a
• Instrument panel cluster (ipc)
• Malfunction indicator lamp
• Mil ctrl
• Park/neutral position switch (left side of transmission)
• Pc sol hi
• Pc sol lo
• Pcm 1 fuse 15a
• Pcm b fuse 20a
• Pnk
• Powertrain control module (left front of engine compt)
• Press ctrl solenoid
• Prnd a
• Prnd b
• Prnd c
• Prnd p
• Prnd321
• Red
• S103
• S213
• Sens gnd
• Serial data
• Splice pack sp205 (left side of dash)
• Stoplamp switch (top of brake pedal bracket)
• Tcc pwm
• Tcc pwm solenoid
• Tcc sol
• Tcc solenoid
• Tft lo ref
• Tft sens sig
• Throttle actuator control module (left rear of engine compt)
• Tow/ haul ind
• Tow/haul switch
• Trans fps a
• Trans fps b
• Trans fps c
• Underhood fuse block (left side of engine compt, c2 near the battery)
• Underhood fuse block (left side of engine compt, near battery)
• Vehicle speed sensor (right rear side of transmission)
• Vss hi
• Vss lo

Transfer Case Wiring Diagram for Hummer H2 2003

List of elements for Transfer Case Wiring Diagram for Hummer H2 2003:

• (chassis harn, near rear diff lock actuator)
• (left frame body mount, under left rear door) g310
• (on rear axle, top of differential housing) rear differential lock actuator
• (under left side of dash) data link connector
• +5v ref
• 4 hi
• 4 hi ind
• 4 hi indicator
• 4 hi lock
• 4 hi lock indicator
• 4 lo ind
• 4 lo lock
• 4 lo lock indicator
• 4wd fuse 15a
• 4wd lo sig
• A encoder
• B encoder
• Battery
• C encoder
• Class ii data
• Encoder logic
• Encoder low ref
• Ground
• Hot at all times
• Hot in run
• I/p fuse block (lower left side of dash)
• Illumination
• Interior lights system
• Motor control a
• Motor control b
• Nca
• Neutral ind
• Neutral indicator
• P encoder
• Pnk
• Powertrain control module (left front of engine compt)
• R diff lock hi
• R diff lock ind
• R diff low ref
• Rear diff lock indicator
• Red
• S375
• Shift motor
• Splice pack sp205 (left side of dash)
• Switch sig
• Transfer case
• Transfer case shift control module (behind headlamp switch)
• Transfer case shift control switch
• Trec fuse 30a
• Underhood fuse block (left side of engine compt, near battery)