Chrysler Repair: Why trans is in limp mode?, odometer reading, voyager 2

Question
hi i have a voyager 2.8 diesel auto 2004 model, its stuck in limp mode, could U help with step by step instructions to fix please

Answer
Hi Gavin,
Try turning the ignition key 'on-off-on-off-on and leave on' doing that in 5 seconds or less elapsed time. Then watch the odometer reading to see if the mileage (kilometerage?) reading changes to show a four digit number(s) preceded by a P. That would be a fault code(s) that will give the best clue as to why you are in limp. If that doesn't work then a code readout via a socket that is under the dash by the steering column is in order.
Roland