Q45t V8-4130cc 4.1L DOHC MFI (VH41) (1997)
Technical Service Bulletin # 09-019
Date: 090421
Engine Controls - CONSULT-III(R) ECM Programming
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.
General Procedure
Updated March 25, 2009
CONSULT-III (C-III) ECM REPROGRAMMING
A symptom based TSB is required before this procedure.
IMPORTANT: Before starting, make sure:
^ ASIST on the C-III computer has been freshly synchronized (updated).
^ All C-III software updates (if any) have been installed.
NOTE:
The C-III computer automatically gets applicable ECM reprogramming data during ASIST synchronization.