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2014 Nissan-Datsun Altima Diagrams. DTC # 03-074F Date: 120221

2014 Nissan-Datsun Altima Diagrams. DTC # 03-074F Date: 120221



Lighting - Exterior Lamp Fogging



Classification: EL03-030F



Reference: NTB03-074F



Date: February 21, 2012



EXTERIOR LAMP FOGGING



This bulletin has been amended. The Applied Vehicles section and the first paragraph of the Service Information section have been revised. Please



discard all previous versions.



APPLIED VEHICLES: 2001-2012 Nissan, All Models



2019 Nissan-Datsun Altima L4-2.5L (QR25DE) Page 158



SERVICE INFORMATION



Occasionally customers may notice water vapor or fog in the exterior lamps. This is generally NOT due to a defect.



The following information, illustrations, and flow chart are provided to help you in determining if an incident for water/condensation in the lamps is



normal or not.



All current exterior lamp assemblies are vented to the atmosphere (not sealed).



^ This is necessary to allow for expansion and contraction of air from temperature "variations" (warmer or colder) without damage to the lamp.



^ Moisture in the air sometimes "travels" into and out of the lamp assembly through these vents.



^ Certain environmental conditions may cause moisture to condense.



^ The fogging/cloudiness should disappear over time when the lamp is in a dry environment.



Fog may temporarily form inside the lens of the exterior lamp assemblies based on environmental conditions or sudden temperature changes (such as



in a car wash, or parked on a cold, sunny day). This is normal. See Figure 1.



NOTE:



This condensation can appear anywhere on the outer lens, typically at its coldest location.



If the moisture trickles, drips, or pools, it may not be considered normal and the lamp assembly may have a water leak path. See Figure 2 for an



example.



If large drops of water collect inside the lens, refer to the flow chart below to find the next step.



SERVICE PROCEDURE



Should a customer note water in a lamp assembly, please use the following flow chart to determine if the condition is normal or requires lamp



2019 Nissan-Datsun Altima L4-2.5L (QR25DE) Page 159

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