I just unhook my radios harness to put in a new deck and now my clusters is acting up by staying on after i turn off the van and my locks do not work now plus lights stay on after i turn them off. couls this be my body control module couls i reset it or i just got to get a new one

You might have loosend up one of the connection on the back panel of the instrumentos cluster
Verify to make sure all conectores all fit in place

Bad ground connection possibly . G - 203 ! Both radio an instrument cluster share ground 203 .
G203 In the I/P harness below the left side of the I/P near the A-pillar . Check to see if clean an tight connection .

Take a multi meter and find an open slot in the fuse panel use a bus connector and a piece of yellow 14 gauge wire and feed it up to the deck area .

Sounds like they might have missed plugging the door harness in to the body, or maybe left a ground unhooked.

Sounds like you need to unhook the radio wires and see if you have any dead fuses.

You shorted out the wireing harness, going to the guages, Possiblly evan a fusible link was mess up.

it sounds like the lock uo solenoid to the torque convertor is hung on. Find some one who knows about transmissions to unhook the plug to the lock up solenoid and ur problem will be temporarily fixed or you can put a new lock up solenoid in it to fix it. But it will not hurt it un pluged it will even save on gas.

FIRST TURN OFF RADIO SO YOU WONT LOCK IT OUT.THEN REMOVE NEGATIVE BATTERY CABLE.RAISE AND SUPPORT VAN SAFELY.REMOVE THE HARD SHELL CONNECTOR AT TERMINAL S GRASP THE PLASTIC SHELL.DO NOT PULL ON THE WIRE.DISCONNECT STARTER ELECTRICAL HARNESS.REMOVE THE UPPER STARTER BOLT.SUPPORT THE STARTER AND REMOVE THE LOWER BOLT.REMOVE THE STARTER FROM VAN.THEN WHEN YOU PUT ON NEW STARTER TORQUE BOLTS TO 20 FT LBS.

What year and model is the van? If it's a 97-2001 caravan, then there were issues with the clusters cloking up, usually from an electrostatic discharge. Generally they would still run, just could'nt use the gauges. There is a printed circuit board on the back of the cluster that is succeptable to electric spikes. The most common cause is a spike induced from the secondary ignition cables into the main engine wiring harness. Look at the ignition wires on the rear of the engine, they may be routed too close to the harness under the upper intake plenum. The data bus wires run between all of the modules on the van and any electrical spike can cause this. There was also issues with spikes from the door lock actuators/latches. If they're buzzing when you hit the power locks this may be your problem.

the issue is the trailer, negative or power feed back,check grounds