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 MANUALSINFINITI2008FX45 AWD V8-4.5L (VK45DE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONPROGRAMMING AND RELEARNINGPROCEDURE AFTER REPLACING ECM
2008 Infiniti FX45 AWD V8-4.5L (VK45DE)
Procedure After Replacing ECM
2008 Infiniti FX45 AWD V8-4.5L (VK45DE)SECTION Procedure After Replacing ECM
Procedure After Replacing ECM
When replacing ECM, the following procedure must be performed.
1. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs.
Refer to BL-187, "ECM Re-Communicating Function". Programming and Relearning
2. Perform EC-662, "VIN Registration". Programming and Relearning
3. Perform EC-662, "Accelerator Pedal Released Position Learning". Testing and Inspection
4. Perform EC-663, "Throttle Valve Closed Position Learning". Throttle Valve Closed Position Learning
5. Perform EC-663, "Idle Air Volume Learning". Programming and Relearning
When replacing ECM, the following procedure must be performed.
1. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs.
Refer to BL-187, "ECM Re-Communicating Function". Programming and Relearning
2. Perform EC-662, "VIN Registration". Programming and Relearning
3. Perform EC-662, "Accelerator Pedal Released Position Learning". Testing and Inspection
4. Perform EC-663, "Throttle Valve Closed Position Learning". Throttle Valve Closed Position Learning
5. Perform EC-663, "Idle Air Volume Learning". Programming and Relearning
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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.