Engine Controls - ECM Programming Information: Overview

Classification: EC99-013D

Reference: NTB00-006D

Date: May 12, 2006

ECM REPROGRAMMING FOR NISSAN VEHICLES

This amended version (NTB00-006d) updates the Service Procedure Section. Please discard all previously released copies of NTB00-006.

APPLIED VEHICLES: 1999 Frontier (D22)
1999 Quest (V41)
1999.5 Pathfinder (R50)
All 2000 and later

SERVICE INFORMATION

^ In-vehicle ECM reprogramming is available to update the ECM of certain 1999 vehicles (listed in Applied Vehicles above), and all 2000 and later vehicles.

^ This reprogramming allows the vehicle ECM to be upgraded to the latest operating specifications without removal or replacement of the ECM.

^ When an ECM has been reprogrammed it will display a new P/N on the CONSULT-II screen.

NOTE:
ECM reprogramming will not affect NATS.

^ ECM reprogramming requires the use of ASIST 8.0 or higher, and CONSULT-II with the ECU Reprogramming Software Card (orange color).

^ Use the Service Procedure steps to transfer ECM reprogramming data from the ASIST PC to CONSULT-II, and from CONSULT-II to the vehicle ECM.

^ Refer to the ECU Reprogramming Software Operations Manual (in ASIST) for additional information on using CONSULT-II for ECM reprogramming.

CAUTION
^ An ECM should be reprogrammed only when required by a specific Nissan Technical Bulletin, or as otherwise directed by Nissan North America.

^ The ECM can be permanently damaged if the reprogramming procedure is not followed exactly.

^ Do not disturb (don't touch) the vehicle, CONSULT-II, or the DLC-II cable while ECM reprogramming is in progress.

^ If the ECM is damaged, it must be replaced.