Parking lights

Okay, so I connected a grounding wire to the black lead of the light switch directly to the battery negative both with the light switch connected and with it switch disconnected - still same problem.

I did notice that the park lights are still illuminated with the ignition switch off and the light switch disconnected. Somehow when the ignition switch is turned off and key removed the park lights still become powered and the warning dinger sounds while the driver door is open (random of course but most of the time now).

No, the park lights stay illuminated with fuses 4 and 6 out, and also with fuses 5 and 7 out.

Okay Joe, I had to wait for the problem to occur because today the park lights are on for 5 or more minutes then off. With the key off and removed and the park lights switch off but the lights still on, I individually pulled each fuse in the power distribution box under the hood. The only one that turns off the park lights is #22 the 40-amp fuse dedicated to the park lights. I also pulled all except for the #22 fuse and the lights are still on. Interesting to note is that the warning dinger still sounds with all fuses including #22 pulled when the door is left open.

I also individually pulled fuses in the fuse block under the dash. The park lights only went off when I pulled fuse #4 (right one went off) and #6 (left one went off), which is as expected.

Again, the park lights do act in alignment with the light switch with the key turned on (i.E. Only on when light switch is on park or headlights).

It's definitely not the relay. There are several relays with the same number, and I've switched them with no change. So, it must be the BCM. That's the same conclusion we came to on a previous problem where the instrument lights come on then fade to nothing within 10 seconds of turning the headlights on.

I think the BCM is more expensive to replace than the various switches I've been changing out. Also, I understand that there may be different ones used in caravan/voyagers in this year.

Thanks. Checked it out and that company also has an ECM ECU unit for a 1997 Voyager. What does that unit control and is the BCM the best part to try replacing to fix this problem?

Chatted with an agent at FS1. They said it could be ECM or BCM to fix light issues. Any suggestions which is the likely part failure?

Okay, so I was messing around with the wiring from the ECM to the power distribution box; I disconnected the top plug to the ECM and reattached. Now the park lights seem to be working okay. I'll see if this is just a temporary fix or if I'm on to something. Will let you know.

Okay, so I finally replaced the BCM from that Flagship One site you suggested. They were very good to work with.
I had 3 electrical issues: 1) parking lights come on at random; 2) dashboard lights come on then fade out when headlights turned on; and 3) front wipers come on at random and wiper delay doesn't work.

1) I believe the parking lights are a wiring connection issue as they are now working properly after replacing the ECM and fooling with the connectors to the ECM.

2) Since replacing the BCM the dashboard lights are now working properly indicating I did have a faulty BCM.

3) Replacing the BCM has also fixed the wiper delay issue, but still at time when I hit a pothole in the road the wipers come on for a while with the switch off. I had already replaced the switch so somewhere in the wiring there is a short that I will try to find, eventually.

I use this old van as my car when visiting my daughter in CA so won't be back there for a couple months, when I'll continue troubleshooting the wiper issue.

Just wanted to say thanks for your help in troubleshooting the dashboard issue that we finally concluded was a faulty BCM, which was actually the case. Replacing the BCM also resulted in mileage reduction from 183,000 to 162,000 miles. ;)