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HOMESERVICE MANUALSCHEVROLET2010SILVERADO 3500 4WD V8-6.0LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULELOCATIONS
2010 Chevrolet Silverado 3500 4WD V8-6.0L

Engine Control Module: Locations

2010 Chevrolet Silverado 3500 4WD V8-6.0LSECTION Locations



Harness Routing Views

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 Chassis Harness Routing - Top Front (Diesel)




1 - Battery - Right
2 - Fuse Holder
3 - X127
4 - X108
5 - X107
6 - X123 (PTO)
7 - Fuse Block - Underhood
8 - X109
9 - Battery - Left
10 - Engine Control Module (ECM)
11 - Transmission Control Module (TCM)

Engine Harness Routing - Top (4.3L)




1 - Mega Fuse Ring Terminal
2 - X175 (M30)
3 - J128
4 - J105
5 - J106
6 - J130 (M30 with NQG/NQH)
7 - Engine Control Module (ECM) X1
8 - Engine Control Module (ECM) X2
9 - G103
10 - X112
11 - Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor Connector
RENDER: 1.0x

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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.