Dlc?

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03-28-2011, 06:52 PM

deuce4935

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Dlc?

Anyone know why the dlc has to have a constant 12 volts instead of switched?

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03-28-2011, 08:58 PM

pdsq98gt

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So a scan tool can check module state. If you turn the key on, everything would wake up.

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03-28-2011, 09:57 PM

deuce4935

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So then its safe to assume that i wouldnt be hurting anything by using a keyed 12volt source? I want to avoid routing an extra wire from the vehicles interior out to the engine bay where the pcm is located.

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03-28-2011, 10:24 PM

01cherryreds10

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You'll be fine using ignition 12v. Most GM cars, the scan tool will stop communicating after a couple of seconds without the key on. Seems like the battery 12v is there just to verify the scan tool works.