Is a load resistor necessary for installing LED bulbs in a PT Cruiser if the flasher unit has five pins and the new LED flasher unit has two or three pins or will fast flasher occur by changing bulbs?

Answer 1

Depending on your vehicle, there are alternatives to a load resistor.

You should use the same type five-pin flasher unit so you don't lose safety features.

I put LED lights in my 2002 LTD Cruiser. License plate lights, Rear tail/brake lights, 3rd brake lights and rear turn signals. I was getting the same rapid flash because of the low voltage demand by the LEDs.

I actually liked it, but I have learned that in some states it can be illegal, like having an actual burnt out bulb. But I found a recommended replacement for the flasher unit (Which is under the upper steering column cover, BTW).

The stock unit is an OMRON 0661A2.

I replaced it with a Tridon Lighting Control Module: LM470 ($29.99 @ AutoZone).

It works perfectly. The audible clicker is a little louder, but it is a bit tinny.

The LM470 says it's LED compatible and should work with various Chrysler, Jeep, Dodge and Plymouth vehicles from 1995 to 2006.

This is better than a load resistor as there is no change to the harness, it is a stock replacement, and it is backward compatible if you want to go back to incandescents, but who would want to do that. ;-)