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Discussion Starter · #1 ·
On my 2004 TJ 4.0 L, will a blown turn signal bulb make the Check Engine light illuminate ?

That is what seems to have happened, as after I replaced the bulb, the Check Engine light extinguished.

I have never owned a vehicle for which this would be the case.

Just hoping that I don't have something else going on.

TIA

Tom
 

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I don't think the CEL comes on for a turn signal, plug it in and check. If you don't have a scanner, any normal parts shop will do it free (pepboys, autozone, oreilys, etc)
 
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