Trunk key cylinder attachment

5

Asked by Jun 26, 2014 at 09:35 PM about the 2003 Nissan Altima 3.5 SE

Question type: Maintenance & Repair

In my 2003 Altima, their is (was) a sensor (??) attached to the back of the key cylinder.  It has a rectangular hole which
appears to fit over the rectangular peg on the back of the cylinder, visible through the access opening in the trunk lid.  
When I turn the key, this peg rotates and I assume it either opens or closes a switch in the sensor.  See photo.  Can
anyone help me figure out what this sensor is?  The trunk light on the dash still comes on when the trunk is open and
goes off when the trunk is closed.  The key will still open the trunk.  The remote will still open the trunk.  All of the lights,
including the license plate and interior trunk lights work properly, and it wouldn't make any sense to have a lighting sensor
on the key cylinder anyway.

1 Answer

59,955

That is part of anti theft system,it is hooked in to detect,correct key,or wrong key,it doe,s not hurt to leave it unhooked.It just let,you computer know it.s you going in the trunk,or somebody trying to jimmy it with other key.

Your Answer

Add photo

Related Questions

Search Nissan Altima Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Nissan Altima Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,900
#2 FordNut
FordNut
Reputation 1,200
#3 Cassie Sapphire
Cassie Sapphire
Reputation 590
View All

Related Models For Sale

Used Nissan Maxima
413 Great Deals out of 24,330 listings starting at $1,895
Used Honda Accord
1,081 Great Deals out of 76,804 listings starting at $1,395
Used Toyota Camry
1,193 Great Deals out of 93,152 listings starting at $700
Used Honda Civic
937 Great Deals out of 68,319 listings starting at $1,500
Used Nissan Sentra
613 Great Deals out of 51,595 listings starting at $2,250
Used Hyundai Sonata
792 Great Deals out of 48,674 listings starting at $700
Used Toyota Corolla
1,081 Great Deals out of 64,189 listings starting at $1,595
Used Chevrolet Malibu
1,122 Great Deals out of 82,793 listings starting at $1,800
Used Kia Optima
565 Great Deals out of 29,712 listings starting at $599
Used Chevrolet Impala
937 Great Deals out of 35,462 listings starting at $1,995
Used Nissan Murano
399 Great Deals out of 21,866 listings starting at $1,750

Used Cars For Sale

2017 Nissan Altima For Sale
34,549 listings starting at $11,461
2016 Nissan Altima For Sale
73 Great Deals out of 13,079 listings starting at $10,995
2015 Nissan Altima For Sale
348 Great Deals out of 9,907 listings starting at $6,995
2014 Nissan Altima For Sale
208 Great Deals out of 5,911 listings starting at $6,995
2013 Nissan Altima For Sale
159 Great Deals out of 5,353 listings starting at $3,900