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.
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HOMESERVICE MANUALSCHEVROLET2013SILVERADO 2500 4WD V8-6.6L DSL TURBOREPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULETESTING AND INSPECTION
2013 Chevrolet Silverado 2500 4WD V8-6.6L DSL Turbo
Engine Control Module: Testing and Inspection
2013 Chevrolet Silverado 2500 4WD V8-6.6L DSL TurboSECTION Testing and Inspection
Engine Control Module Programming and Setup (LGH or LML)
The following service procedures require either a programming or a setup event performed for a complete repair.
ECM Replacement
If the engine control module (ECM) is replaced, the following procedures must be performed:
Note: Clear any DTCs that may have set after completing the programming procedure.
1. Enable ECM Reprogramming-Refer to Service Programming System (SPS) Service Programming System (SPS).
2. Perform the CKP Variation Learn-Refer to Crankshaft Position Reluctor Wheel Learn Testing and Inspection.
3. Perform a Theft Deterrent Module Programming and Setup-Refer to Theft Deterrent Module Programming and Setup Testing and Inspection.
4. Perform a Fuel Injector Flow Rate Programming - Refer to Fuel Injector Flow Rate Programming Fuel Injector Flow Rate Programming
5. Perform a Diesel Particulate Filter (DPF) Service Regeneration-Refer to Diesel Particulate Filter (DPF) Service Regeneration Diesel Particulate Filter (DPF) Service Regeneration.
ECM Reprogramming
Note: Clear any DTCs that may have set after completing the programming procedure.
Enable ECM Reprogramming-Refer to Service Programming System (SPS) Service Programming System (SPS).
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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.