must clear self-learning after repairing dtc p1273/p1283 or
Contents
1. properly and safely NOTE If you believe that a described condition may apply to a particular vehicle DO NOT assume that it does See your Nissan dealer to determine if this applies to your vehicle 1 3 SERVICE PROCEDURE 1 Repair the source of the lean condition P1273 P1283 or rich condition P1274 P1284 e Check ASIST for any specific incident bulletins that may apply to your vehicle e As necessary follow Service Manual ESM diagnostic and repair information 2 Clear the engine Self Learning Use CONSULT II as follows START Nissan gt gt gt gt SELECT DIAG MODE a WORK SUPPORT SELF DIAG RESULTS DATA MONITOR DATA MONITOR SPEC CAN DIAG SUPPORT MNTR ACTIVE TEST Scroll Down BACK LIGHT COPY SELECT WORK ITEM FUEL PRESSURE RELEASE IDLE AIR VOLUME LEARN a SELF LEARNING CONT EVAP SYSTEM CLOSE TARGET IGNITION TIMING ADJ TARGET IDLE RPM ADJ MODE BACK LIGHT COPY 2 3 Readings of 100 for B1 and B2 confirm that Self Learning has been completed SELF LEARN CONT THIS FUNCTION ALLOWS SELF LEARNING CONTROL VALUE TO BE CLEARED IMPROPER USAGE OF THIS FUNCTION MAY CAUSE POOR DRIVABILITY WHILE ECM SELF LEARNING IS COMPLETED FOLLOW THE INSTRUCTION OF SERVICE MANUAL START MODE BACK LIGHT CO2. NISSAN NORTH AMERICA INC Technical Bulletin Copyright Classification Date EC04 025 NTB04 126 October 29 2004 MUST CLEAR SELF LEARNING AFTER REPAIRING DTC P1273 P1283 OR P1274 P1284 AIR FUEL LEAN OR RICH SHIFT APPLIED VEHICLES All Nissan s with DTC s P1273 P1274 P1283 P1284 IF YOU CONFIRM A MIL ON with any of the following DTC s stored e P1273 P1283 A F Sensor Bank 1 2 Lean Monitor e P1274 P1284 A F Sensor Bank 1 2 Rich Monitor ACTIONS 1 Repair the vehicle as necessary e Refer to ASIST for diagnostic and repair information 2 Clear the engine ECU Self Learning IMPORTANT If Self Learning Is Not Cleared e The DTC may be stored again even if no malfunction exists e This could result in the customer returning with the same incident come back repair CLAIMS INFORMATION The procedure to clear ECU Self Learning is part of the DTC repair and should not be claimed as a separate repair item IMPORTANT The purpose of ACTIONS above is to give you a quick idea of the work you will be performing You MUST closely follow the entire Service Procedure starting on page 2 as it contains information that is essential to successfully completing this repair Nissan Bulletins are intended for use by qualified technicians not do it yourselfers Qualified technicians are properly trained individuals who have the equipment tools safety instruction and know how to do a job
3. PY WORK SUPPORT B1 SELF LEARNING CONT XXX B2 XXX CLEAR MODE BACK LIGHT COPY WORK SUPPORT SELF LEARNING CONT CLEAR B1 100 B2 ra 100 CLEAR MODE BACK LIGHT COPY 3 3 X s shown here for example only Your readout will show real values numbers here
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