R32 GTR Park lights issue

[Djdannyr32]

Hey guys, 

So I know the headlight issue has been beaten to death at this point on GTR's but don't think I've seen this happen and I'm at a loss at this point.

The parking lights, interior lights, and tail lights ( when not on the brake) have all gone out. However, my headlights, high beams and turn signals all work.

The park lights setting on the switch does nothing, as well as the fog light button ( its wired to act as another park light button ) 

I've checked all fuses under the driver footwell, all are intact, tested with voltmeter and good to go. Also tested the relay under the hood as well.

Being the noob I am when it comes to electrical stuff and reading so much about the faulty switch and possible burnt out wiring, I went ahead and replaced both the interior light switch and harness to rule out. No Dice Same issue. 

Ive traced out some wires off the interior harness. it appears there are 3 wires / separate circuit for park lights?

Im going to guess the Green with Red wire is battery feed? It also looks like its split into the fog light button which is making me believe is the issue.

Has anyone had this happen before? 

[Duncan]

You really need to start with some basic checks with a multimeter, that will tell you if power is getting to the switch and from the switch....there are too many places for this to fail after 30 years without knowing that

[GTSBoy]

90% it's the fuse.

[Stick180]

Does your radio work? IIRC the interior lights (including dash), Taillights and Radio are all on the audio fuse.

[Djdannyr32]

So just to clarify. 

Ive checked all fuses in the engine bay as well as under dash with multi meter. all good. tested terminals fuses are in as well to check for power. all good.

I do NOT have a fusible link as my battery has been previously relocated to my trunk and on a breaker ( currently good to go) 

I have traced the wires on the interior switch. The park circuit appears to be 3 wires / plugs on that switch, 

a red wire with grey specs, a black wire with grey specs and a Green wire with red stripe. 

I'm assuming that the green wire with the red stripe is supplying battery power as im currently getting nothing from said wire and it appears to be split/spliced into the cars fog light switch ( also acted as park lights switch ) 

 

To answer the above

Lowbeams, highbeams, dome lights and brake lights work. I have a dvd player and yes it works/ plays. 

My park lights, taillights , and dash lights do not ( triple gauges out and haltech ic7 will not flip to night mode ) 

 

 

[GTSBoy]

Do you have the wiring diagram?

[Djdannyr32]

yeah not the greatest

if anyone has a better copy ?

[Djdannyr32]

9/28 update.

 

so I had a lil help and re traced and tested everything possible. 

all fuses intact, power to fuse box on all slots. 

 

Determined that the wiring in the dash for the headlight switch seems to be the culprit. 

The green wire with red appears not to be getting any voltage what so ever. 

also was able to backfeed on separate wire to test, all lights worked when doing so.

does anyone have a clear wiring diagram? my example sucks and cant seem to find any better....

need to find where this wire goes.

 

[GTSBoy]

I'm back in proximity to my paper copy of the workshop manual. I'll leave this thread open to remind me to have a look on the weekend.