will click but not start
If the starter motor won't crank, have to check voltage and ground at the starter motor. Any testing, make sure tranny is in park or neutral and the parking brake is set. One voltage circuit at the starter comes from the battery, hot all the time. The other circuit usually goes hot with key in the crank position. The starter usually grounds through the engine block. You have a starter relay in integrated power module, under the hood. Sometimes the relay has a wiring diagram on it, terminal 30 should be hot all the time, terminal 87 carries voltage to the starter, if you use a jumper wire between those two terminals, the starter should crank, no need to use key, just make sure vehicle can't move. I can't rule out starter motor itself, having a problem?
Search Dodge Grand Caravan Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Dodge Grand Caravan Experts