MIL Light wiring help
MIL Light wiring help
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Discussion

hiltonig

Original Poster:

3,153 posts

238 months

Thursday 5th April 2012
quotequote all
Ok was the MIL wired to the Lucas ECU ??? Just going to wire to the ECU, Anyone know the wiring colours as I cannot find a drawing as to how its wired. Looks like a LED does it have the resistor on board as I cannot quite see it.

Cheers

SILICONEKID340HP

14,997 posts

261 months

Thursday 5th April 2012
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What is a MIL light ..? Im thinking of fitting a MILF light laugh Do you think it`s a good idea?

blitzracing

6,422 posts

250 months

Friday 6th April 2012
quotequote all
Its black and yellow into pin 10 on the ECU. You should find this feeding to the main 8 pin connector that connects 14CUX loom to the TVR loom (Making a big assumption here that TVR have not spiced this in any way- I dont have a TVR here at the moment to check it on.) The lamp needs to have 12 volts on one side, and the MIL light grounds via the ECU when there is a fault. It will switch an LED quite happily, as long as you have a current limiting resistor in line. Its of limited use however , as the lamp is disabled on most of the UK supplied firmware in the ECU chip, but you might be lucky. All Mark Adams chip have the lamp enabled. It only shows major faults on the ECU or sensors but unfortunately does not come on in all cases when the ECU is in limp home mode (For example a tune resistor fault will throw the ECU into limp home, but wont show up on the MIL). You need a fault code reader plugged into find these more subtle faults.

spend

12,581 posts

281 months

Friday 6th April 2012
quotequote all
IIRC its a red/slate wire to the 22way white connector in the glovebox / rear of stereo area. TVR power the bulb/led with the ignition, your ecu just grounds it to switch it on, whether you want warning / shift / map indicator....

blitzracing

6,422 posts

250 months

Friday 6th April 2012
quotequote all
Heres the connector on my at the 14CUX end loom. Its the connection to the yellow wire in this case a Ginetta loom.