Headlights Stopped Working W124 - PeachParts Mercedes-Benz Forum

zeronero · #1 01-26-2010, 09:03 PM

I tested the new switch I purchased for continuity and it does work. I tested pins 1 and 2 with the switch in high beam position and pins 2 and 11 with the switch in flash position and when in those positions it did complete the circuit.

That's good new on that front, I'll test the original switch that's in the car to see if it's good also; it should be since the new switch didn't solve the problem and it works.

@whunter - It seems as if it might be the relay, but the fuses for the low and high beams aren't getting power. Since they're upstream of the relay shouldn't they still be getting power, or if the relay was dead even though downstream would that effect those fuses?

whunter · #2 01-27-2010, 06:52 AM

Quote:

Originally Posted by zeronero

I tested the new switch I purchased for continuity and it does work. I tested pins 1 and 2 with the switch in high beam position and pins 2 and 11 with the switch in flash position and when in those positions it did complete the circuit.

That's good new on that front, I'll test the original switch that's in the car to see if it's good also; it should be since the new switch didn't solve the problem and it works.

@whunter - It seems as if it might be the relay, but the fuses for the low and high beams aren't getting power. Since they're upstream of the relay shouldn't they still be getting power, or if the relay was dead even though downstream would that effect those fuses?

Try to find a good used relay, that is generally the issue.