B4 Cluster Gp CEL Bulb Info

I want to remote locate the GP and CEL indicators info a different, non-tdi cluster. Does anyone have some wise words of wisdom in how to do this, such as bulb style, voltage, etc ? Thanks, Happy 4th.

They operate on a simple GROUND = on principal. So one side of the light / LED gets 12V and the ECU will supply ground when it wants the light on.

The issue is most TDI ECUs that I have experienced the "off" state isn't an open circuit, but rather a float circuit. So the lights will glow dimly when off. A pull up resistor is needed to rectify that and if you are going any more current than say a LED, then A MOSFET would be your friend as well.

I'm kinda lost... the lights in my B4 clusters are glowing dimly?

I did get a cluster from the JY where the OP light did glow dimly. 2 other clusters in the same car didn't have the glowing OP light. I cleaned everything as best I could and couldn't fix it.

-Todd

you can use a small incandescents without worries... been running stock toyota bulbs for cel and glow for over six years, 100k miles, zero issues on edc15... no glowing dimly either

The small current flow is part of the bulb check... the ECU will set a fault if the CEL or GPL are open circuit.

-J

compu_85 said:

The small current flow is part of the bulb check... the ECU will set a fault if the CEL or GPL are open circuit.

-J

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good info

I just bought some LEDs and snap in bezels a few weeks ago for this.. As mentioned you have to put a resistor between the pos and neg lead. I think i used 1K's to get the LED to stay out but not also be a concerning drain.

If you need a couple just cover shipping and send me "something" lol. I got red, green, yellow, white and blue I think.