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Resetting maintenance indicator light after changing O2 sensors?

13320 Views 7 Replies 7 Participants Last post by  92jeepster48195

I am going to change the O2 sensors on my 1998 TJ Wrangler Sport (6 cylinder, 4.0L). According to the Haynes manual, I need to reset the emissions maintenance indicator light. Here is the paragraph from Haynes manual:

"On 1991 and later models, the emissions maintenance indicator light can only be reset with a special tool available at most auto parts stores. After replacing the oxygen sensor, take the vehicle to a dealer service department or other properly equipped repair facility and have the light reset."

I looked up the factory service manual, and it did not mention any such indicator light. I wonder if anyone has heard such a light?

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It turns out the Haynes manual is out-dated, even though it is supposed to cover models up to 2003. What it said only applies to OBD I. 1998 TJ uses OBD II, so no such indicator light. Which also explains why FSM did not mention it.

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