led 620 dash lights

[Apollo77]

Anyone know what wire I need to put a load reducer on to be able to use led bulbs?

[kelowg]

For dash lights, u shouldnt need one. Load resistors r for turn bulbs to fool flasher can. Just get bulds rated for correct voltage

[620Turbo4X4]

I just switched to led bulbs in my 620. I noticed when last bulb was switched that all of the LED's got dimmer. Also dimmer knob is either off or on now. I think this is because my truck does not use a rheostat and is rather PWM on the negative side and requires a certain amount of current to work properly. I've ordered up some can-bus bulbs. Let you know how this works out...

 

PS. I just completed building a circut to invert the negative PWM to a positive PWM for aftermarket gauges that do not have a seperate ground for lighting. This fixes the problem of dash lights getting dimmer and gauges getting brighter when adjusting dimmer knob. If anyone is interested let me know and I might make up some more and post some in the classifieds. I have enough IC chips to make 9 more...

[ggzilla]

Most year 620s use an old fashioned rheostat.

 

The last couple years they changed to what Datsun called a "semiconductor rheostat".

[620Turbo4X4]

Good to know. All my trucks are 78's or 79's. The negative side pulse width modulation kinda sucks when you install aftermarket stereo, and gauges without the extra lighting ground.

 

I couldn't find anyone that sells a inverter so your aftermarket stuff works right...