Check engine light on after replacing the battery.

Asked by Jul 29, 2008 at 08:19 PM about the 2005 Hyundai Santa Fe GLS 3.5L

Question type: Maintenance & Repair

New battery installed and the check engine light is on and will not go out. Attempted disconnecting the battery again. Still on. Would like to not have to take it to the dealer if possible. Any suggestions.

6 Answers

8,025

Goto local parts store and have them run an OBD 2 scan... Avoid the diagnostic fee many dealers charge these days(Which I understand with ABS and specialty readings but a basic OBD scanner isn't worth what most of them charge).

1 out of 1 people think this is helpful.

pull your ECM fuse or UNHOOK the neg battery cable for about 5 minutes and let the computer reset itself.

5 out of 5 people think this is helpful.
45

alternator problem,, but it possible that you have a bad fuse too.

1 out of 1 people think this is helpful.
1,045

Alternator won't cause the check engine light to come on, the battery light will come on.

1 out of 1 people think this is helpful.
15

mabe a short, bad relay, lord lots of things

65

Was the light on before you replaced the battery? How many miles are on this truck?

3 out of 3 people think this is helpful.

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