emissions maintenance light

Remove the bulb???

I think that this applies to all the early Cherokees and Wranglers, but consult a manual or dealer. The emissions light goes on, and stays on, until you replace the control unit. If you want to be squeaky clean, and adher to all federal regulations, then you should replace it.

Earle

Same deal for '91' XJ's? Is the unit located in the same location?

This may sound stupid but you simply unplug the two connectors going into the timer module for it under he dash in the area of the steering column and plug them together eliminating the timer. It can't be reset and the official way was to replace the timer. JoBo

The 91 XJ went to the MOPAR computer, best I recall. That had a real, honest to goodness check engine light with stored codes. The old Renix was just capable of running the engine and fuel system - no stored codes (or codes off any type, for that matter). The "Check" light was simply a timer that set the light at 80,000 miles, period. You were supposed to replace the cat and/or the O2 sensor then. Useless bit of EPA compliance, nothing more.