help me Immobilizer Jeep Cherokee 1999

[kentrinite]

Hi,
I have a recurring problem with my Jeep.
The button lights up in the sentinel dashboard
and said on when the ignition is on.
The engine not start

239466

[Shmortz]

what is the engine ECU? read eeprom and/or flash...

[kentrinite]

it is a 4 L