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International Automotive Technicians Network
Re: Which specific DTCs will turn the MIL light ON?
Posted to Technical Theory Forum on 4/5/2013

[DTC's]

If it is a GM vehicle the status byte of the DTC tells you whether or not the DTC in question is a reason for commanding the MIL on.

You will notice that when you browse through the DTC's in the list under Enhanced that 3 codes are causing the MIL ... Login to read more.

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