PROBLEM WZ HEADLIGHT & TAIL LIGHT

[awtfox]

i'm having a problem with my tail lights. when i turn the switch, i get no lights in the back. my headlights are working, but only as high beams. my brake lights are still functional, any ideas? ( changed all the light bulbsand fuses)

[96Qowner]

( changed all the light bulbsand fuses)

Aha. With what? The Q45 is very sensitive to the replacement lamps you use - gotta be OEM or a very few others. Contacts in the sockets can often melt or become corroded to the point that the system fails somewhere. Thoroughly check and/or clean all your sockets, taillights first.

zerothread?id=47709

[awtfox]

Replace tail light wz SYLVANIA 1156 LL & 1157 LL , Headlight wz SYLVANIA 9003 - high/low beam for 2 headligh system. are these good for 94 Q45 ?

[96Qowner]

Sylvania LLs and 9003 should be fine. So now, just have to check the sockets. This is a fairly common issue.

I see you've been searching. Tried testing with a multimeter? Are your dash lights working?

zerothread?id=254736

zerothread?id=242097

[awtfox]

Dash lights are not working and now the air bag indicator is flashing.Any idea ?

[96Qowner]

Well, it's gotta be the same circuit path that the other links refer to then. First advice is to make sure sockets are clean and functional, then test all the fuses for continuity, then while you're in there, check the fuse sockets for continuity, etc.

It's usually a fuse that looks good but isn't, or a bad socket somewhere, but it might be a short somewhere in the harness - a bit of a bugger to run down, sorry.

Wiring diagrams from the FSM help:

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

[awtfox]

Checked and clean all the sockets ....fuses are replaced (front & rear lamp).Still the same ! How do you check the harness ? ....tks