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Check Engine light ECU input/output
http://auszookers.com/forum/viewtopic.php?f=5&t=27603
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Author:  DMAC [ Fri Nov 11, 2011 7:21 am ]
Post subject:  Check Engine light ECU input/output

Finally getting around to wiring the check engine light.
How does the ECU (MK1 GTi) treat the engine light?
Ie.
1. A clean set of contacts that switches to ground.

or

2. Does it rely on a certian current flow.

The reason for the question is I'm going to use a 12v LED indicator not a bulb, and was wondering if it will have an effect on its operation.

Author:  royce [ Fri Nov 11, 2011 7:33 am ]
Post subject:  Re: Check Engine light ECU input/output

LED will be fine, its jsut switches the terminal in the ECU to ground

Author:  DMAC [ Fri Nov 11, 2011 7:35 am ]
Post subject:  Re: Check Engine light ECU input/output

Thanks Royce to easy. :cheers:

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