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HOMESERVICE MANUALSCHEVROLET2009SILVERADO 3500 2WD V8-6.0LREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULELOCATIONSCONNECTOR LOCATIONS
2009 Chevrolet Silverado 3500 2WD V8-6.0L

Connector Locations

2009 Chevrolet Silverado 3500 2WD V8-6.0LSECTION Connector Locations


Harness Routing Views

Camshaft Position Sensor Jumper Harness Routing (4.8L/5.3L/6.0L/6.2L)




1 - X112
2 - Camshaft Position Sensor Jumper Harness

Engine Harness Routing - Left Front Side (4.8L/5.3L/6.0L/6.2L except LFA/HP2)




1 - Air Intake Duct
2 - X111
3 - Fuse Block - Underhood X2
4 - X109
5 - X110 (NQF/NQG/NQH)
6 - Engine Control Module (ECM) X2
7 - Engine Control Module (ECM) X1
8 - G102
9 - J105

Engine Harness Routing - Right Front Side (4.8L/5.3L/6.0L/6.2L except LFA/HP2)




1 - Dash Panel
2 - X113
3 - J106
4 - G103

Engine Harness Routing - Rear (4.8L/5.3L/6.0L/6.2L except LFA/HP2)




1 - Dash Panel
2 - Transmission
3 - X175 (M30)
4 - Transfer Case Shift Control Switch (NQG)

Heated Oxygen Sensor (HO2S) Jumper Harness Routing (LY6)




1 - X125
2 - Heated Oxygen Sensor (H02S) Bank 2 Sensor 2
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.