One headlight works then shuts off when hi beams are on

So you have pop up head lights and both low beams work but the left high beam is inop?

No only low beam on passenger side works both headlights are new

So passenger side low beam only and when you switch to high beam no head lights?Do i have it right now?

Yes

Have you checked the wires to them for being broken etc?

Yes all the way back to relays

What is the location of the headlight sensor?

The head light sensors are usually right up on top of the dash pad right on top of the dash.I dont thats bad from whats going on.Do you have a multimeter to do some testing?

Yes I do.

Check the fuses if you have not done so.

Diagram shows location of light sensor.

I have checked all fuses

KHlow2008 can you find a head light wire diagram for this car?I cant find one in our online repair info we use.

u need a test light to see if the socket is getting power when u turn them on. u maYbe have a bad bulb

I've done that not bad bulb or pigtail

We need a wire diagram for the head lightd at this point.Do you have one cadieman?

I have a wiring diagram from Mitchell repair online.

Really it didnt list the headlight wire diagram when i looked on there can you post it?

Saturntech9, for pre1992 models there are not many system diagrams. You need to check the wiring under engine compartment.

kmelquist,
Perform the following test first.
At headlight connector, test the following wires for battery voltage with headlight switch turned on.

Lowbeams
Red/Yellow (right side)
Red/Blue

Highbeams
Orange (right side)
Orange/White.

If you have battery voltage with any lights not working, ground the Pink (right headlight) or Pink/Black (left headlight) and retest. If lights comes on, the light sensor or its wiring is faulty.

If battery voltage is not available under the lighting positions, you have a bad light switch.

Ok where is the light switch located?

if he is getting voltage when he turns the headlight switch on at the socket and the ground is good.the bulb is bad period.

Circuit is grounded via the light sensor.
Light switch is the multifunction switch that yuou turn the lights on.

Btw are the lights flipping open and remains open when lights failed?

Ok I'm back and did tests. Red/yellow and red/blue both have no voltage. The orange both have volts pushing 12 with the hi beam switch off..... When I switch hi beam on I lose volts in orange wires and get only 6v out of red/yellow. ?? Ground gave me no answers

And yes headlights retract everytime

When there is no voltage, grounding would not work.

My previous post had the following mistakes:

Lowbeams
Red/Yellow (right side)
Red/Blue

Highbeams
Orange (right side)
Orange/White.

It should be thus.

High beams
Red/Yellow (right side)
Red/Blue

Low beams
Orange (right side)
Orange/White.

You have 2 problems here.

1. Faulty light switch or its wiring between light switch to the headlight bulbs. The high beam circuit is not transferring the required voltage to the headlights.

2. Faulty light sensor or its wiring/ground circuit.

At left headlight, with lights turn on to low beam, ground the Pink/Black wire and if headlight turns on, you would need to repeat test at light sensor for same wire to see if the light turns on.

At light switch test the Red/Yellow and Red/Blue wire for battery voltage with high beams turned on. If you do not get battery voltage, the switch is bad.



2.

Where is the light sensor located on vehicle?

Refer to the diagram I posted earlier.

It is the headlight switch. Thank you so much for your help. Nissan only sells part with the wiper switch. Any one know where or if I could get just the switch?? Again thank you for your help

Do you have cruise control or intermintant wipers?Which ones do you have?

I have cruise and multi speed wipers not variable speed.

I see it coming as both levers they have them on Www.rockauto.com and amazon.

Yes saw it there too. Thank You

There expensive i would look at pick a part or ebay.

Yes I know 300-400. I'm searching local yards and wholesalers.

Good luck let me know what you find.

If you want to give it a try, remove the back cover of the light switch and check the contacts. You might be able to repair it

u could allways call some salvage yards to locate 1

At this age, salvage yards are a long shot.

they have a locater that checks if the part is anywhere in the usa.have u checked that voltage is at the dimmer switch for voltage and when u turn on the high beams on the voltage is being sent on the wire.because the head lights go from switch to dimmer switch then to head lights. hope this helps.i think the switch is a shot in thedark.u need to check your voltages first.gl

Checked and getting voltage then not getting it. I unscrewed part for easier testing and both lights came on by moving wires around put it back in place and bent wires and forcing harness deeper into switch and lights come on. Defiantly contacts in switch I did clean and see if any thing was obstructing harness from connecting.... The car has not seen winter since 1991 so I found no corrosion.