Unplug the module, will set a check engine light, but see if the problem goes away.
If it doesn't die, you have a bad module or cable, if it does your problem is elsewhere I would think.
Pull the plugs off the ecm for 10 minutes and it will clear out the codes you may have set.
97 Sahara, 74 Renegade, 72 CJ5, 55 Willy's (the Beast) Boss 302, 6:34 gearing, Bose 901 speakers.
God I miss that Jeep. Forgot the kinda Jeep, 80 SX4.