I'm trying to narrow down if I have one problem within the electrical system or two separate problems. My dashboard lights actually began flickering before the problem with the windshield wiper delay. I will go sometimes a few months with no dash light flickering and for no obvious reason they will start flickering again. When I first turn on the windshield wipers at a delay setting they typically function as if I have them on the low continuous setting for about 30-60 sec. before running according to the delay setting. Sometimes on delay, they will randomly wipe twice at a low continuous speed then pause for several seconds, run at low continuous, then at the appropriate delay setting. I almost always have a problem turning them off. Sometimes the wipers will stop immediately where ever they are in the cycle (i.e., in the middle of the windshield) or they won't stop until about 30 sec. after I have turned them off. It is like the wipers have a mind of their own. Are the dash lights and wiper on the same circuit? What might be the problem or problems?
The dash lights is a lose ground or power connection the wipers could be a couple things there is a wiper relay that may be going bad or the wiper motor is going bad could even be both
SOURCE: I am having problems with the wiper delay.
Mystery wipers..... the BCM is probably bad. It is expensive but that was what I have seen.
Body Control Module
SOURCE: 1996 Dodge Grand Caravan wipers continue to run
The multi- function switch (turn signal switch) Your wipers are control by this switch. This problem is very common on dodge and chrysler with this switch failing.
SOURCE: 1997 Dodge Ram 3500 windshield wipers wont stop
If your voltage regulater in the charging system (distributor, altinater, battery, PCM) was replaced then the entire PCM where the volt. regulator nis held should have been replaced, so hopefully it was.
To check the charging system make sure when the truck is running the battery reads 13.5 to 14.5 volts (may go as high as 16) and when not running the battery should be at 12 volts. Any high and low voltages meen that the regulater or PCM are still bad and could be your problem.
to check the wiper circuit, pull its fuse and place a continuity tester over the fuse positions terminals, should have continuity, if not you have a wiring issue and the circuit needs tested at different sections until the break is found. Also the tester to check the wipers ground, place one test lead on a known/good grounding spot and the other on your wiper ground if there is no continuity than you are not grounded and you have to find the short.
You can get a Haynes repair manual that has all circuit diagrams in it, if your able to read circuit diagrams, hope this helps.
SOURCE: when I turn on the
This sounds like an issue with your ignition switch. Basically what is happening here is that you are shutting off your vehicle, but the ignition switch is not working correctly and is allowing certain accessories to stay on.
SOURCE: Haywire gauges
The instrument cluster in this van is really a computer display and it has malfunctioned. This is a common complaint on this van and you must remove the cluster and have it rebuilt to cure the problems. Check the WEB for repair sources. They can also provide complete instructions on removal free of charge.
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