PROCEDURE TO COMPLETE IAVL WHEN IDLE
Contents
1. P N as follows START Nissan gt gt gt gt ECM PART NUMBER gt gt COPY B Go to ASIST Select CONSULT Utilities gt ECM TCM Data Then choose Model and Model Year of the vehicle you re working on see Figure 1 Vehicle 4 ECU Electronic Control Unit 5 Reprogramming Data Model SS Configuration BS 4 Speed A T Models E To 23710 8Y102 VQ35 4A T ASCD To 23710 8Y102 A34 VQ35 mal 1 E gt To 23710 8Y112 VQ35 4A T ASCD TCS BAITASCD TC8 Toe 5 Speed A T Models To Sentez i 2001 E To 23710 8Y002 VQ35 5A T ASCD Number ouest To 23710 8Y012 VQ35 5A T ASCD TCS Quest M T Models E To 23710 7002 VQ35 6M T ASCD di Pathfinde Replaces 23710 8Y010 8Y011 L e per bulletin only A aA aA le This illustration is for example only your vehicle may be different TP030621 Figure 1 C Select the configuration on the screen for the vehicle you re working on Then make sure that your current ECM P N is listed in the Replaces 23710 XXXXX XXXXX etc section in the lower center Details panel of the ASIST screen see Figure 1 e f your current ECM P N is listed in the Details panel you can perform a reprogramming using the latest newer data update then go to D on the next page Click herelto link to the Reprogramming Procedure for Nissan Vehicles or refer to Attachment A in t2. Procedure 6 EX11AA ZE 32 0 6 hrs injector s disconnected 6 Reference the final CONSULT II print out and use the indicated ECM P N as the PFP SERVICE PROCEDURE NOTE After completing repairs in this procedure make sure any stored DTCs are erased 1 Make sure there are no engine vacuum leaks Repair any vacuum leaks that are found Make sure to check e Hoses e Intake Manifold e Ducting between Intake Manifold and MAFS 2 5 2 Perform Idle Air Volume Learning IAVL procedure as follows NOTE The IAVL procedure will normally complete within 2 minutes after Procedure Start A Make sure all DTCs are cleared erased B Use CONSULT II to confirm perform the following Pre Conditions NOTE The IAVL procedure will self cancel if any of the following Pre Conditions are not met and maintained for as long as the procedure is running DATA MONITOR SIGNALS ENGINE PRE CONDITIONS BATTERY VOLT V More than 12 9V at idle COOLAN TEMP S C OR F Between 158 210 F 70 99 C ON Transmission in either Neutral or Park AIR COND SIG ON OFF OFF Air conditioner HVAC switch off LOAD SIGNAL ON OFF OFF Lighting switch and or rear defogger off OFF Engine cooling fan motor not running OFF Steering i i f WORK SUPPORT SETTING ENGINE Cis In addition for vehicles with CVT DATA MONITOR SIGNALS TRANSMISSION PRE CONDITIONS FLUID TEMP SE Less than 0 9V C Turn ignition switch OFF
3. Technical Bulletin Petey ee eee SERVICE BULLETIN Classification EC05 009 NTB05 067 October 5 2005 PROCEDURE TO COMPLETE IAVL WHEN IDLE SPEED NEEDS TO BE REDUCED APPLIED VEHICLES All 2002 2005 models IF YOU CONFIRM The idle in Park or Neutral is more than 25 rpm above specification with the engine warm and or DTC P0507 ISC SYSTEM is stored NOTE e This incident may be the result of recent cleaning or replacement of the throttle body The vehicle in use learned idle IAVL may be higher after throttle body deposits are reduced by cleaning or replacement e If DTCs other than P0507 are stored you must correct the cause for those DTCs first After correcting other DTCs if you still have a P0507 and or an idle condition above specification continue with this bulletin ACTIONS To reduce idle RPM perform the following in this order until IAVL successfully completes 1 Check engine for vacuum leaks 2 Perform IAVL procedure 3 For 2002 and 2003 models Check for newer ECM reprogramming data If it s available perform reprogramming then try IAVL again 2004 and 2005 models Skip this step 4 Reduce idle speed manually a Disconnect injectors one at a time until IAVL completes see step 4 of the Service Procedure for details b Reconnect the injectors clear DTCs and perform final IAVL IMPORTANT The purpose of ACTIONS above is to give you a quick idea of the work you will
4. and wait at least 10 seconds D Start the engine and let it idle for at least 30 seconds E Using CONSULT II select WORK SUPPORT gt IDLE AIR VOL LEARN F Touch START and wait 20 seconds to 2 minutes e If CMPLT is displayed on CONSULT II screen go to G next step e f NCMP is displayed within 2 minutes or test is not finished within 2 minutes Idle Air Volume Learning was not carried out successfully go to step H G Rev up the engine two or three times then let the engine idle Verify the idle speed is within specifications Refer to the EC section of the appropriate Service Manual for specifications If OK procedure ends here If not go to step H H If IAVL did not complete and you re sure you e Set all of the preconditions exactly as shown in the chart above and e Performed steps A through F exactly as shown above Go to step 3 on the next page 3 5 NOTE Step 3 below covers 2002 and 2003 vehicles only For 2004 and 2005 vehicles skip to step 4 on the next page e For 2004 and 2005 model years ECM reprogramming will not clear the vehicle in use learned IAVL Reprogramming won t reduce the idle speed 3 For 2002 2003 vehicles you may be able to reduce the engine idle speed by performing ECM reprogramming Reprogramming may clear the vehicle in use learned IAVL A With the ignition ON and CONSULT II connected to the vehicle print your current ECM Part Number
5. 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 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 CLAIMS INFORMATION Submit a Primary Failed Part PP line claim using the following claims coding DESCRIPTION PFP OPCODE SYM DIA FRT Perform IAVL Procedure DE9S6AA 1 Reference the final CONSULT II print out and use the indicated ECM P N as the PFP 2 Reference the current Nissan Warranty Flat Rate Manual and use the indicated FRT _ AND IF applicable DTC P0507 3 EJ53AA ZE 32 4 3 Reference the final CONSULT II print out and use the indicated ECM P N as the PFP 4 Reference the current Nissan Warranty Flat Rate Manual and use the indicated FRT _ AND IF necessary DESCRIPTION PFP OPCODE SYM DIA FRT Reprogram ECM DE98AA 5 Reference the final CONSULT II print out and use the indicated ECM P N as the PFP AND IF necessary DESCRIPTION PFP OPCODE SYM DIA FRT Manual Idle Reduce
6. ed B Use CONSULT II to erase any DTC that may be stored and clear Self Learn C Turn OFF the engine then re start it D After the engine idle has stabilized perform IAVL again step 2 on page 3 5 5
7. he print copy of this bulletin e If your current ECM P N is not listed in the Details panel new ECM data is not available for your vehicle go to step 4 on the next page 4 5 D After following all steps of the reprogramming procedure perform IAVL again back to step 2 on page 3 e f the IAVL procedure now completes the incident is fixed and you re done e f the IAVL procedure still does not complete go to step 4 4 Reduce the engine idle speed manually and perform IAVL as follows A With the engine running disconnect 1 fuel injector engine rom should drop MIL may come ON CAUTION Do Not disconnect the ignition coils or spark plugs for this step Disconnecting the ignition while the engine is running may cause damage to the catalysts B With the injector s disconnected and the engine running perform IAVL step 2 on page 3 NOTE Make sure all DTCs are cleared e If CMPLT is displayed on CONSULT II screen within 2 minutes go to step 5 e f NCMP is displayed or test is not finished within 2 minutes a Disconnect another injector b Repeat step B above NOTE e For 4 cylinder engines up to 2 injectors can be disconnected one at a time e For 6 and 8 cylinder engines up to 3 injectors can be disconnected one at a time It is best that 3 disconnected injectors particularly on V6 engines not all be on the same engine bank 5 Final IAVL procedure A Make sure all injectors are connect
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