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 MANUALSNISSAN-DATSUN2003FRONTIER 2WD L4-2.4L (KA24DE)REPAIR AND DIAGNOSISRELAYS AND MODULESRELAYS AND MODULES - POWERTRAIN MANAGEMENTRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULETECHNICAL SERVICE BULLETINSENGINE CONTROLS - ECM PROGRAMMING INFORMATIONOVERVIEW
2003 Nissan-Datsun Frontier 2WD L4-2.4L (KA24DE)
Engine Controls - ECM Programming Information: Overview
2003 Nissan-Datsun Frontier 2WD L4-2.4L (KA24DE)SECTION 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.
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.
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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.