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Makes 🢒 Chevrolet 🢒 2008 🢒 Express - AWD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Engine Control Module Programming and Setup

Engine Control Module Programming and Setup GAS

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:

    • The ECM Reprogramming--Refer to Service Programming System (SPS).
    • The CKP Variation Learn--Refer to Crankshaft Position System Variation Learn.
    • The Theft Deterrent Programming--Refer to Theft Deterrent Control Module Programming and Setup.
    • The Fuel Composition Diagnostic--Refer to Fuel Composition Diagnosis for the 5.3L (LMG or LC9).
    • The Throttle Learn procedure--Refer to Throttle Learn.
    • Engine Oil Life Remaining--When available, use a scan tool to reset the Engine Oil Life Remaining back to the original percentage recorded before the module was replaced.
    • Transmission Fluid Life Remaining--When available, use a scan tool to reset the Transmission Fluid Life Remaining back to the original percentage recorded before the module was replaced.

ECM Reprogramming

Important: DO NOT reprogram a FlexFuel (E85) vehicle while the fuel composition learn function is active. If necessary, drive the vehicle until the scan tool indicates that the fuel composition learn parameter is inactive. Programming with the fuel composition learn active will result in fuel trim DTCs.

    • If the ECM needs to be reprogrammed, refer to Service Programming System (SPS).
    • Engine Oil Life Remaining--When available, use a scan tool to reset the Engine Oil Life Remaining back to the original percentage recorded before the module was reprogrammed.
    • Transmission Fluid Life Remaining--When available, use a scan tool to reset the Transmission Fluid Life Remaining back to the original percentage recorded before the module was reprogrammed.

Setup for Component Replacement

The replacement of some components will require a setup procedure for complete repair.

If any of the following components are replaced, a CKP Variation Learn Procedure must be performed. Refer to Crankshaft Position System Variation Learn.

    • Engine replacement
    • Any engine repair that disturbs the crankshaft position (CKP) sensor or its relationship with the crankshaft reluctor wheel
    • CKP sensor
       ⇒If the throttle body is replaced, a Throttle Learn procedure must be performed. Refer to Throttle Learn.

Engine Control Module Programming and Setup W/RPO LMM

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:

  1. Capture the Option data.

    2. Important: Clear any DTCs that may have set after completing the programming procedure.

  2. Enable ECM Reprogramming--Refer to Service Programming System (SPS).
  3. Restore the Option data in the new ECM.
  4. Start and idle vehicle.
  5. Using the scan tool, perform the Turbocharger Learn Procedure. Refer to Turbocharger Learn.
  6. Perform a Diesel Particulate Filter (DPF) Regeneration Enable.
  7. If necessary, perform the following:
    8. • Theft Deterrent--Refer to Theft Deterrent Control Module Programming and Setup.
    • The Fuel Injector Flow Rate Programming--Refer to Fuel Injector Flow Rate Programming.
    • Engine Oil Life Remaining--Use scan tool to reset Engine Oil Life.
    • Fuel Filter Life--Use scan tool to reset Fuel Filter Life.

ECM Reprogramming

    Important: It is necessary to record Fuel Filter Life before reprogramming. The ECM reprogramming procedure will reset Fuel Filter Life to zero.

  1. Record Fuel Filter Life.

    2. Important: Clear any DTCs that may have set after completing the programming procedure.

  2. Enable ECM Reprogramming--Refer to Service Programming System (SPS).
  3. Reset Fuel Filter Life to the recorded value.
  4. Start and idle vehicle.
  5. Using the scan tool, perform the Turbocharger Learn Procedure. Refer to Turbocharger Learn.
  6. Perform a Diesel Particulate Filter (DPF) Regeneration Enable.
  7. If necessary, perform the following:
    8. • Theft Deterrent--Refer to Theft Deterrent Control Module Programming and Setup.
    • The Fuel Injector Flow Rate Programming--Refer to Fuel Injector Flow Rate Programming.
    • Engine Oil Life Remaining--Use scan tool to reset Engine Oil Life.

Setup for Component Replacement

The replacement of some components will require a setup procedure for complete repair.

If any of the following components are replaced, a Turbocharger Learn Procedure must be performed.

    • Turbocharger
    • Turbocharger Vane Position Sensor
    • Turbocharger Vane Position Control Solenoid Valve