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.
2012 Infiniti M56 V8-5.6L (VK56VD)FACTORY OEM SERVICE PROCEDURE
Engine Controls - ECM Replacement Procedure: Overview
Classification: EC12-009
Reference: ITB12-018
Date: April 10, 2012
ECM REPLACEMENT PROCEDURES WITH CONSULT III PLUS
APPLIED VEHICLES: All 2004 and later
IF YOU CONFIRM:
The Electronic Control Module (ECM) needs to be replaced on a 2004 MY and later vehicle.
ACTIONS:
After installing ECM:
^ Perform ECM Re-communicating Function (if supported).
^ Perform the "ACCELERATOR PEDAL & THROTTLE VALVE CLOSED POSITION LEARNING" procedure (see step 3).
^ Perform the "IDLE AIR VOL LEARNING" procedure (when applicable) using CONSULT-III plus (CIII plus). (See step 4)
^ For 2005 and later vehicles, enter the vehicle VIN into the new ECM (see step 5).
^ Check for any new updates for the new ECM you're installing (see step 6).
CAUTION:
^ Failure to perform all the work steps in the specified order can cause poor engine running, MIL ON, or vehicle emission test rejection.
^ Some vehicles may have Additional Services When Replacing the ECM not covered within this bulletin. Refer to the model specific ESM and CIII plus "Maintenance" tab for any additional model specific services.
IMPORTANT:
The purpose of "ACTIONS" (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire Service Procedure as it contains information that is essential to successfully completing this repair.
CLAIMS INFORMATION
Reference: ITB12-018
Date: April 10, 2012
ECM REPLACEMENT PROCEDURES WITH CONSULT III PLUS
APPLIED VEHICLES: All 2004 and later
IF YOU CONFIRM:
The Electronic Control Module (ECM) needs to be replaced on a 2004 MY and later vehicle.
ACTIONS:
After installing ECM:
^ Perform ECM Re-communicating Function (if supported).
^ Perform the "ACCELERATOR PEDAL & THROTTLE VALVE CLOSED POSITION LEARNING" procedure (see step 3).
^ Perform the "IDLE AIR VOL LEARNING" procedure (when applicable) using CONSULT-III plus (CIII plus). (See step 4)
^ For 2005 and later vehicles, enter the vehicle VIN into the new ECM (see step 5).
^ Check for any new updates for the new ECM you're installing (see step 6).
CAUTION:
^ Failure to perform all the work steps in the specified order can cause poor engine running, MIL ON, or vehicle emission test rejection.
^ Some vehicles may have Additional Services When Replacing the ECM not covered within this bulletin. Refer to the model specific ESM and CIII plus "Maintenance" tab for any additional model specific services.
IMPORTANT:
The purpose of "ACTIONS" (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire Service Procedure as it contains information that is essential to successfully completing this repair.
CLAIMS INFORMATION
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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