ITB17-042c
Service Bulletin Details
Public Details for: ITB17-042c
Infiniti; dtc P0456 caused by evap leak at vent control valve o-ring this bulletin has been amended. See amendment history on the last page. Please discard previous versions of this bulletin.
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Classification: Reference: Date: EC16-035c ITB17-042c September 14, 2020 INFINITI; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. See Amendment History on the last page. Please discard previous versions of this bulletin. APPLIED VEHICLES: 2011-2012 G25 Sedan (V36) 2007-2008 G35 Sedan (V36) 2009-2013 G37 Convertible (V36) 2008-2013 G37 Coupe (V36) 2009-2013 G37 Sedan (V36) 2006-2010 M45/M35 (Y50) 2011-2013 M37/M56 (Y51) 2004-2010 QX56 (JA60) 2011-2013 QX56 (Z62) 2015 Q40 (V36) 2014-2020 Q50 (V37) 2014-2018 Q50 Hybrid (V37) 2014-2015 Q60 Convertible (V36) 2014-2015 Q60 Coupe (V36) 2017-2020 Q60 Coupe (V37) 2014-2019 Q70 (Y51) 2014-2018 Q70 Hybrid (Y51) 2017-2019 QX30 (H15) 2014-2017 QX50 (J50) 2019-2020 QX50 (J55) 2014-2020 QX60 (L50) 2014-2017 QX60 Hybrid (L50) 2014-2020 QX80 (Z62) IF YOU CONFIRM The MIL is ON in an APPLIED VEHICLE with DTC P0456 (EVAP VERY SML LEAK) AND DTC P0456 is not caused by a loose fuel fill cap (refer to ITB13-044). An EVAP leak has been detected where the vent control valve mounts to the canister. The vent control valve O-ring seal is determined to be the cause. ACTION 1. DO NOT REPLACE the vent control valve. 2. Replace the vent control valve O-ring seal (O-ring). Refer to SERVICE PROCEDURE on the next page. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair. Infiniti 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 Infiniti retailer to determine if this applies to your vehicle. 1/8 SERVICE PROCEDURE 1. Replace the O-ring. To access the O-ring, refer to the appropriate section in the Electronic Service Manual (ESM) of the APPLIED VEHICLE for vent control valve removal and installation. This O-ring is now available separately (see PARTS INFORMATION). When installing, do not add any lubrication to the O-ring. Seat the O-ring all the way down as shown on page 4, Figure 7. Having the O-ring seated all the way down will assure it is not twisted or rolled over. Refer to the pictures on pages 3 and 4 for additional installation information. CAUTION: Make sure the surfaces that the O-ring comes in contact with are clean. When installed, make sure the O-ring is not twisted or rolled over. Verify the repair is complete by checking for leaks with a “smoke” leak detection machine or CONSULT-III plus (C-III plus). If a “smoke” leak detection machine is used, follow the manufacturer’s operating instructions. If C-III plus is used: 1. Confirm the fuel filler cap is secure. Vehicles with a service port see page 5. Vehicles without a service port see page 6. 2. Using Active Test, close the vent control valve. 3. Apply pressure using special tool J-42909 until the bar graph reaches about halfway. 4. Monitor the bar graph for 10 minutes. 2/8 ITB17-042c NG: Dirty O-ring surface Vent control valve Figure 1 Figure 2 OK: Clean O-ring surface Make sure all edges are not broken Figure 3 Figure 4 3/8 ITB17-042c Where vent control valve mounts in canister This surface must be clean all around Canister Make sure all edges are not broken Figure 5 Figure 6 When fully seated (no gaps), O-ring is not twisted or rolled over O-ring No gap all around Figure 7 4/8 ITB17-042c Models with a Service Port (2017 and older) Connect essential tool J-42909 to the service port and perform EVAP system leak check. There is no need to perform a separate leak check of the purge control valve. Figure 8 EVAP System Basic Operation Fuel vapor flows from fuel tank into canister (light blue area) Vapor flows from canister through purge control valve (red line) Fresh air flows into canister (green line) 5/8 ITB17-042c Models without a Service Port (QX30 and 2018 and Newer) Disconnect the EVAP line at the purge control valve. Connect essential tool J-42909 to the EVAP line and perform EVAP system leak check. Use special tool J-42909 to also perform a separate leak check of the purge control valve. Figure 9 EVAP System Basic Operation Fuel vapor flows from fuel tank into canister (light blue area) Vapor flows from canister through purge control valve (red line) Fresh air flows into canister (green line) 6/8 ITB17-042c PARTS INFORMATION DESCRIPTION P/N QUANTITY SEAL O-RING 16618-JF00A 1 CLAIMS INFORMATION Submit a Primary Part (PP) line claim using the following claims coding: DESCRIPTION MODEL PFP OP CODE SYM DIA FRT 16618-JF00A FX57AA HD 32 0.3 16618-JF00A FX57AA HD 32 0.4 16618-JF00A FX57AA HD 32 0.5 M35, M45 (Y50) G25, G35, G37 (V36) Q40, Q60 (V36) Q50 Hybrid (V37) Q50, Q60 (V37) M37, M56, M Hybrid (Y51) Q70, Q70 Hybrid (Y51) EX35, EX37 (J50) Replace Vent Control Valve O-Ring QX50 (J50) FX35, FX37, FX45, FX50 (S51) QX70 (S51) JX35 (L50) QX60 (L50), QX60 Hybrid QX50 (J55) QX56 (JA60) QX56 (Z62) QX80 (Z62) 7/8 ITB17-042c AMENDMENT HISTORY PUBLISHED DATE REFERENCE DESCRIPTION July 21, 2017 ITB17-042 Original bulletin published November 16, 2018 ITB17-042a APPLIED VEHICLES and CLAIMS INFORMATION updated January 29, 2019 ITB17-042b APPLIED VEHICLES updated September 14, 2020 ITB17-042c APPLIED VEHICLES updated 8/8 ITB17-042c