Problem with a headlight

Got questions about your Infiniti? We're here to help, and it's FREE!
areznik
Posts: 115
Joined: Thu Feb 12, 2004 8:05 pm
Car: Infiniti Q45 1994
BMW 335i Couple 2007

Post

Guys,

My Q45 '94 is at about 165K now, holding strong. My low beam passanger headlight stopped working (high beam is fine). I thought must be the bulb and without thinking twice bought a new one. After replacing the bulb the low beam still does not work. I checked the voltage between the three pins and it goes only to 4.5v as opposed to the working low beam on the driver's side that goes up to 12v when on. This puzzled me quiet a bit (did a basic check for fuses that are located just above the passanger headlight, and all seem to be fine).

What could happen that it does not get enought voltage at low beam??

Thanks,Andre.


maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

Post

Headlight relay.

I don't know where it is located.

User avatar
goody90q45
Posts: 3679
Joined: Wed Aug 17, 2005 2:07 pm
Car: 1992 Infiniti Q45 (sold)
Location: Orangevale, CA

Post

maxnix wrote:Headlight relay. I don't know where it is located.
It's right next to the radiator overflow bottle on the PS in the engine compartment. I have a few if you find that you need one.

Is there a short somewhere burning out the relay? Did you check the connectors close? Brittle wires? See "Location of Electrical Units" in the EL section of the FSM if you can't find the relay.

http://www.nicoclub.com/FSM/Q45/1994_Q45/

areznik
Posts: 115
Joined: Thu Feb 12, 2004 8:05 pm
Car: Infiniti Q45 1994
BMW 335i Couple 2007

Post

Thanks for the advice. Do you know how can I check that relay whether it is functioning correctly (could not find how to test it in the manual)?

Andre.

User avatar
Infinitiguy19
Posts: 7787
Joined: Sat Dec 22, 2007 4:58 pm
Car: 1993 Infiniti Q45 188580 Miles
1994 Infiniti Q45a 240000 Miles

Post

You can try and see if there is continuty between the pins, But easier to replace and see if its the problem or not.

I happen to have one by the way.

areznik
Posts: 115
Joined: Thu Feb 12, 2004 8:05 pm
Car: Infiniti Q45 1994
BMW 335i Couple 2007

Post

Thanks to all of you who contributed to this thread. I got a swap headlamp relay from goody94q45 (excellent person btw) and it solved my problem.

Andre.


Return to “Infiniti Online Mechanic”