2001 grand caravan will not start would the bcm do this

My database only shows one wiper motor. Did you check voltage and ground, anywhere? Check the wiper fuse for voltage, hot all the time, use test light. At the wiper motor, dark green wire is voltage for lo speed. The purple wire is voltage for hi speed, Turn on key, turn on wiper switch, probe those two wires for voltage, use a test light. That bottom black wire off wiper motor, in diagram, is ground, check that also. If good voltage and ground with no wiper action, I suspect the wiper motor. There are codes for wiper, manufacturer codes, check for codes. good luck

Your best bet , have a qualified repair shop check it out . The windshield wipers / washer are controlled by the BCM - body control module .

Wiper/Washer System Description
The body control module (BCM) controls wiper motor low speed operation. The washer pump and high speed operation are controlled directly by the wiper/washer switch. The windshield wiper/washer switch supplies voltage on the signal circuits to the BCM for windshield wiper/washer operation. When WASH, MIST, DELAY, LOW, or HIGH is detected, the BCM energizes the wiper micro relay by suppling voltage to the relay coil. This allows battery voltage from the WIPER fuse to flow through the relay switched input then through the contacts and out the relay switched output to the wiper 2 relay switch contacts. Since the wiper 2 relay switch contacts are normally closed to the low speed circuit of the windshield wiper motor, the motor will operate at low speed.
The BCM is the gateway to all the modules on the vehicle , all are connected to a serial data network for sharing info.
Having a factory or some other type of a professional scan tool that can view BCM DTC'S - diagnostic trouble code's would be the first thing in the diagnostic procedure . If the BCM or wiper switch is causing a problem - shorted etc... it wont allow the BCM to message other modules , like the anti-theft system or engine computer , so the PCM/ECM - engine computer wont see message for the request for start . You need to know how the start system works also.
Circuit Description
Moving the ignition switch to the START position signals the body control module (BCM) that engine crank has been requested. The BCM verifies that theft is not active and sends a serial data message to the powertrain control module (PCM) requesting engine start. The BCM also energizes the RUN/CRANK RELAY. When the RUN/CRANK RELAY switch side closes, and the vehicle is in Park/Neutral or with the clutch fully depressed, if equipped, supply voltage is applied to the PCM CNTRL relay coil. The PCM verifies the transmission is in Park/Neutral or if the clutch is fully depressed, if equipped. The PCM will then ground the control circuit of the PCM CNTRL relay, closing the switch suppling voltage to the starter solenoid. On some vehicles the starter will continue to crank the engine with the key released until it starts, the crank command has timed out to prevent excessive heat build up in the starter circuitry or the PCM receives an engine run flag.
There is nothing your going to be able to do , nor should you try . So do yourself a favor an take it to a qualified repair shop.

Your best bet , take it to a dealer . The wipers are controlled by the BCM - body control module .
The Wiper/Washer System consists of the following components:
• Windshield wiper/washer switch
• Body control module (BCM)
• Wiper micro relay
• Wiper 2 relay
• Wiper diode
• Windshield wiper motor
• Windshield washer pump
• Windshield washer nozzles
• Windshield washer solvent container
• Windshield wiper arm and blade assemblies
• Windshield wiper transmission
• WIP/WASH 10A fuse
• WIPER 25A fuse

Testing for DTC'S - diagnostic trouble code's should be the first step in diagnostic process . No part store can check code's in BCM.
You have no idea of the complexity of the electronic's on your vehicle.
Moving the ignition switch to the START position signals the body control module (BCM) that engine crank has been requested. The BCM verifies that theft is not active and sends a serial data message to the powertrain control module (PCM) requesting engine start. The BCM also energizes the RUN/CRANK RELAY. When the RUN/CRANK RELAY switch side closes, and the vehicle is in Park/Neutral or with the clutch fully depressed, if equipped, supply voltage is applied to the PCM CNTRL relay coil. The PCM verifies the transmission is in Park/Neutral or if the clutch is fully depressed, if equipped. The PCM will then ground the control circuit of the PCM CNTRL relay, closing the switch suppling voltage to the starter solenoid. On some vehicles the starter will continue to crank the engine with the key released until it starts, the crank command has timed out to prevent excessive heat build up in the starter circuitry or the PCM receives an engine run flag.

most bcm are just behind the relay box behind or under it the battery follow the bulk of wires and it is under the relay box and connected to it .take the 2 bolts the hold the relay box on and flip it on its side or over it is attached to the relay control box

make sure your ground at the instrument cluster checks out ok. i have seen many chrysler computers replaced over this bad ground proble,

Good Evening. The location of the fan motor relay on the 2001 Dodge Grand Caravan is behind the grille right on top before the air conditioning condenser. I hope this helps with your location, and if you have any more questions please feel free to ask.

You may want to try pulling connections off BCM (body control module) and cleaning them with contact spray cleaner or similar & re-installing. Sometimes you'll get lucky & this will cure it, without replacing BCM.

you will need to replace the relay for the fan because it is stuck on. You can look on autozone.com for free online repair guide. It will have the relay location unless you have a repair manual of your own. But it is the relay.

Check for shorted wires & faulty relays on driverside under hood at fender. About 1" square, with wire harness attached to bottom.

The BCM Unit had to re-learn the systems when I put another unit in. The Windshield wipers use to come on whenever they wanted to without touching the button and the air conditioning stopped working all together, but now it works like new. Everything works perfectly but the only draw back is that the odometer jumped from 94,521 miles to 120,000 miles when I installed the new BCM Unit. I know that the miles were lower but I am happy that the van is running great and everything works just as they are suppose to. I believe that the air conditioner unit did not get the right signal from the BCM and so the motor started to smoke. I ran the engine for 10 minutes and it went away. Thanks again for the advice and have a blessed day. TED