LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> Electrical >> Component Locations >> Electrical Component Locator >> Connectors
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Electrical Component Locator: Connectors

CONNECTORS LOCATION

Component Location
C100 (Black, 16 Pin) Below underhood fuse block.
C101 (Black, 10 Pin) Below underhood fuse block.
C102 (Black, 12 Pin) On rear side of underhood fuse block.
C103 (Black, 14 Pin) Attached to front side of underhood fuse block.
C104 (Black, 12 Pin) Near underhood fuse block.
C105 (Black, 1 Pin) Near wheelwell.
C106 (Blue, 12 Pin) Under underhood fuse block.
C115 (Black, 2 Pin) At top left rear of engine, in engine harness. See Figure .
C148 (Light Gray, 8 Pin) In engine harness to odd ignition coil harness.
C158 (Light Gray, 8 Pin) In engine harness to odd ignition coil harness.
C175 (Gray, 20 Pin) At right side of automatic transmission.
C200 (Black, 16 Pin) Behind left side of dash.
C201 (Yellow, 4 Pin) On left side of dash, behind left kick panel.
C202 (Black, 52 Pin) Attached to transfer case shift control bracket.
C203 (Yellow, 2 Pin) Below steering column.
C210 (Black, 12 Pin) At bottom left side of dash.
C298 (Light Gray, 22 Pin) Behind right kick panel.
C310 (Black, 17 Pin) At left side "B" pillar.
C320 (Black, 6 Pin) Under left rear seat.
C325 (Black, 16 Pin) Under driver's seat.
C326 (Light Gray, 13 Pin) In driver's seat harness, under driver's seat.
C327 (Light Blue, 24 Pin) In driver's seat harness, under driver's seat.
C328 (Natural, 10 Pin) In driver's seat harness, under driver's seat.
C329 (Natural, 6 Pin) In driver's seat harness, under driver's seat.
C330 (Gray, 6 Pin) In driver's seat harness, under driver's seat.
C333 (Black, 8 Pin) In driver's seat harness, under driver's seat.
C350 (Light Gray, 22 Pin) Under front floor upper console.
C355 (Black, 8 Pin) At front of audio amplifier.
C375 (Black, 16 Pin) Under passenger seat.
C376 (Black, 6 Pin) Under passenger seat.
C377 (Gray, 6 Pin) Under passenger seat.
C378 (Black, 4 Pin) Under passenger seat.
C380 (Black, 6 Pin) Under right rear seat.
C390 (Black, 17 Pin) At right side "B" pillar.
C420 (Gray, 12 Pin) At top left area of liftgate.
C450 (Black, 2 Pin) At rear underside of vehicle, attached to air suspension assembly.
C451 (Black, 16 Pin) At rear underside of vehicle, attached to air suspension assembly.
C900 (Black, 12 Pin) Inside top left body opening of liftgate.