jonhums

The wiring diagram for the 1992 C2 does not show a wiring connection to pin 31 on the headlight switch. This means the bulb in the light switch will not work as originally wired. Has anyone found a suitable source of power to solve this problem?

Computamedic

The bulb in the light switch was deleted by Porsche because it gets too hot when on.

Dave

jhummel68

I know on the 993 there is backlighting on the headlight switch any time the key is on. I wonder if there are different part #'s for the switch on the 964 & 993? The 993 switch part # is 993 613 513 00. Here is a thread from the 993 forum.

https://rennlist.com/forums/showthre...t=light+switch

doruiacovescu

Checked mine, bulb is ok, never worked. How about yours? my90ROW

anto1150

I did mine about 2 years ago. No problem since.

If I recall correcly, you need to groud pin 31.

anto1150

Here are the correct bulbs. These are lower power than originals and NEVER get hot!

doruiacovescu

I l check the terminal 31.
Thanks!
DOru

paa502

Can you add more details on how you got it to work? TIA

anto1150

I simply connected #31 to the chassis (anywhere) with a piece of wire. But I'm not 100% sure: memory starts failing...

elbeee964

Blue-sky positing, here: a (modern) mini 12V LED would work quite nicely in place of a 'too hot' incandescent design.

Laker

agree, but wouldn't the LED give off a cold bluish tint, while incandescent would be a soft yellow?

anto1150

Here for LEDs

John Boggiano

I thought it was beacuse it caused a reflection right in the line of view to the door mirror that it was disabled.

anto1150

that's also what I knew...

anyway, a lower-power bulb/led will fix both issues

frankvan

connected mine up so that it is only lit up when the lights are turned off.
Might got he LED route though as it is quite bright, and probably is a little warm for the plastic.