Third Brake Light

[elsamurai]

Regarding the LED third brake light; what exactly makes them fail? The LED board itself is getting 12v, and nothing obvious looks burned out. Just really curious what fails on these units.

I'll replace it with a quality ebay unit.

 

[sumo]

corrosion, Bad solder Joints. Since the Leds are a series circuit, if one fails or there is a break in the circuit anywhere, the circuit becomes incomplete for Voltage to travel. Think of it like a String of Christmas lights. One bulb goes out, they entire sting goes dead.

 

[noJeepshere]

corrosion, Bad solder Joints. Since the Leds are a series circuit, if one fails or there is a break in the circuit anywhere, the circuit becomes incomplete for Voltage to travel. Think of it like a String of Christmas lights. One bulb goes out, they entire sting goes dead.

Not quite, I've seen some that individual leds are out but the unit as a whole still works.

How is the ground?

 

[SunlitComet]

which makes it a parallel circuit. and based on truck schematics it is a parallel circuit in side the assy.

 

[elsamurai]

thanks guys; that answers that.

 

[sumo]

Not quite, I've seen some that individual leds are out but the unit as a whole still works.

How is the ground?

Yes if it in parallel. I was thinking that all leds were out

 

[SunlitComet]

unless power or ground lead is down.