If you're only looking to read basic data, A ELM327 scanner like the one you purchased should work. If you're not getting any connection, it's probably between the dongle and the tablet.

If you're looking read / write data, HPTuners has recently updated their MPVI2 scanner to read the full 97-06 Jeep ECM range were before it only supported 05-06 years. With this, sky's the limit, but you can mess stuff up in a hurry if you're unfamiliar with tuning software.

Also, if you need basic Pcode readout ASAP, your odometer can do that. Just push and hold down the trip reset button, then turn the ignition to the on position. It will display any basic MIL errors.

 

Also, if you need basic Pcode readout ASAP, your odometer can do that. Just push and hold down the trip reset button, then turn the ignition to the on position. It will display any basic MIL errors.

This is incorrect. Holding the odometer button when turning on the ignition will make the cluster do the actuator test.

To get OBDII trouble codes from the odometer, within five seconds, and without starting, turn the ignition on-off-on-off-on, leaving it on the third time. Any trouble codes will be displayed, followed by donE.

 

akbrian

Thanks for the tips. I'll check out the MPVI2. I had just installed "Car Scanner ELM OBD2" app, but unfortunately I won't have time to give either a try till later in the day. The main thing I'd like is to look a the graphing functions for troubleshooting, not so much to actually modify anything at this time.