PeachParts Mercedes-Benz Forum - View Single Post - w123 300d

Graham · #11 01-10-2012, 11:42 PM

Quote:

Originally Posted by Yak

It may depend on your meter and how you're testing. Two quick hits from google:

Meter check of a diode : DIODES AND RECTIFIERS

Testing Diodes

I assume that the switches don't work when plugged in and you're now trying to isolate if it's the wiring or the bulb.

I'd put the meter in DC V and check across sockets 4 and 6 in the car. That doesn't help you at your desk though. Got a battery at your desk?

This DIY is also my catch-all for benefitting from someone else disassembling their dash: PeachPartsWiki: Replacing the A/C Evaporator

I'd guess the C124 connector is somewhere near the driver's right foot, based on the presence of numerous blue wires in that vicinity.

Thanks for input. I will read through that stuff.

I don't have a problem with the switches themselves - Just trying to make sure there is no obvious short before I put them back.

The way I modified the cluster board means that the other night lights are now hard wired. No more dimmer or circuit board traces used except for the two cluster bulbs.

Doesn't make much sense to me that the cluster circuit board has no protection other than the 8amp fuse. Those traces would blow first if the night lighting wiring was accidentally grounded.

Switches will go back in tomorrow and hopefully that will be it for now!