Re: 02 Limited - instrument cluster going crazy
What you call the ignition light is in fact the SKIS light, the Sentry Key Immobilizer System light.
This can be a hard one to tackle. The fact that all the instruments went to 0 and back again, seems to be a problem with the PCI data bus or maybe the instrument cluster itself. You say that the engine stalled, but it didnīt shut down?
The PCM is sending the information for the instruments via the PCI bus to the instrument cluster. So many things can go wrong here: a problem with the PCM itself, a problem with wiring or connectors or a problem with one of the components connected to the PCI bus (and that are quite a bit).
I would start with removing/cleaning/reconnecting the connectors on the PCM and do an instrument self test: with ignition switch in off, push the odometer reset button and while pushed, switch the ignition in on. All instruments should go full scale and back to their normal position, all indicator lights come on and the odometer will count 111111,22222 etc. You can release the push button as soon as the test starts.
If it was raining before this problem started, you could also have a look at the C200 connector on the fire wall at the passengers side behind the dash. On some jeeps water can go into this connector, giving problems with the SKIS light, no engine start and other strange behaviour.