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.
Engine Controls - CONSULT-III(R) ECM Programming: Overview
2002 Infiniti G20 L4-2.0L (SR20DE)SECTION Overview
Classification: EC09-008
Reference: ITB09-019
Date: April 21, 2009
CONSULT-III ECM REPROGRAMMING PROCEDURE
APPLIED VEHICLES:
All CONSULT-III (C-III) compatible Infiniti vehicles
SERVICE INFORMATION
A complete step-by-step General Procedure for C-III ECM Reprogramming is now available in the on-line version of this bulletin.
This General Procedure is also available via hyperlink from specific C-III symptom-based Technical Service Bulletins in ASIST.
CAUTION: BEFORE STARTING REPROGRAMMING
^ Connect a battery charger to the vehicle battery. If the 12V battery voltage drops during reprogramming, the ECM may be damaged.
^ Be sure to turn OFF all vehicle electrical loads. If a vehicle electrical load remains ON, the ECM may be damaged.
^ For ECM reprogramming, the C-III MUST be connected to the VI using the USB cable. Be sure to connect the AC Adapter. If the C-III battery voltage drops during reprogramming, the process will be interrupted and the ECM will be damaged.
Reference: ITB09-019
Date: April 21, 2009
CONSULT-III ECM REPROGRAMMING PROCEDURE
APPLIED VEHICLES:
All CONSULT-III (C-III) compatible Infiniti vehicles
SERVICE INFORMATION
A complete step-by-step General Procedure for C-III ECM Reprogramming is now available in the on-line version of this bulletin.
This General Procedure is also available via hyperlink from specific C-III symptom-based Technical Service Bulletins in ASIST.
CAUTION: BEFORE STARTING REPROGRAMMING
^ Connect a battery charger to the vehicle battery. If the 12V battery voltage drops during reprogramming, the ECM may be damaged.
^ Be sure to turn OFF all vehicle electrical loads. If a vehicle electrical load remains ON, the ECM may be damaged.
^ For ECM reprogramming, the C-III MUST be connected to the VI using the USB cable. Be sure to connect the AC Adapter. If the C-III battery voltage drops during reprogramming, the process will be interrupted and the ECM will be damaged.
RENDER: 1.0x
NO RELATED
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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.