Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSGMC2013SIERRA 3500 2WD V8-6.0L (CNG)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULELOCATIONSENGINE CONTROL MODULE (ECM)
2013 GMC Sierra 3500 2WD V8-6.0L (CNG)
Engine Control Module (ECM)
2013 GMC Sierra 3500 2WD V8-6.0L (CNG)SECTION Engine Control Module (ECM)
Front of Vehicle/Engine Compartment Component Views
Left Rear of the Engine Compartment Components
1 - Windshield Wiper Motor
2 - Power Brake Booster (JL4)
3 - Fuse Block - Underhood
4 - Engine Control Module (ECM)
5 - Transmission Control Module (TCM) (M30, M70 or MW7)
6 - Brake Booster Vacuum Sensor (JL4)/Brake Master Cylinder Pressure Sensor (JL1)
7 - Brake Fluid Level Switch
Front of Vehicle/Engine Compartment Component Views
Left Rear of the Engine Compartment Components (except HP2)
1 - Windshield Wiper Motor
2 - Fuse Block - Underhood
3 - Engine Control Module (ECM)
4 - Transmission Control Module (TCM) (M30 or MW7)
5 - Brake Booster Vacuum Sensor (JL4 with 10 Series)/Brake Master Cylinder Pressure Sensor (JL1)
6 - Brake Fluid Level Switch
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.