How do i reset check engine light on my mercury


Asked by Jun 07, 2017 at 03:20 PM about the 1999 Mercury Grand Marquis 4 Dr LS Sedan

Question type: General

Engine light

3 Answers


with an OBD II scanner

1 of 1 people found this helpful.

My NYC fix was to remove the positive battery cable;wait 5 min and replace it. Will probably come back after a few days.So fix the problem.Luis.

1 of 1 people found this helpful.

If the problem is fixed, it will turn off the CEL on it's own. 3 consecutive non-fail scans will turn off the light. OBD scanner can do it but safest way is to let it shut itself off after fixed.

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