PCM Pin for check engine light.

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Jan 16, 2008 | 11:53 PM

desTRUCKtive

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From: Tucson AZ

PCM Pin for check engine light.

Does anyone know the pin for the PCM check engine light?

Jan 17, 2008 | 06:29 AM

Grumpy5.3

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From: South Georgia

that gets sent over ths class2 data line, not really a pin.

Jan 17, 2008 | 01:45 PM

kbracing96

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From: Oakland, OR

MIL (Malfunction Indicator Lamp) is the Red 46 if it's a 02 or older pcm.

Also, it provides the ground to operate, so you should run +12 to one leg of the light and the other to the pin for grounding. Thats how I did it on my dads 72.

https://ls1tech.com/forums/showthread.php?t=312119

Last edited by kbracing96; Jan 17, 2008 at 01:55 PM.