check engine light

Laimon Williams

Asked by Apr 13, 2016 at 08:28 PM about the 2004 Chevrolet Tahoe Base

Question type: Maintenance & Repair

Scanner not reading check engine light

2 Answers


Does your reader work on other cars? If it does, your OBDII port might me disconnected or missing one of the required pins.


Most scanners are connected to the cigarette lighter fuse. Check for blown cigarette lighter fuse.

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