No start, no crank, no power to instrument cluster with key on and fully charged battery

The headlights work and the interior lights work but that's about it. The radio light comes on with the key but instrument cluster lights do not come on. I'll be checking fuse #7 and #16 in the morning. I will also test each fuse again as illustrated in the link you sent me. I'll let you know what I find out. Thanks for the info.

Fuse #7 checked out okay; pin #16 had power on it, 12 volts. But could not get continuity on #4 pin. I am going to start checking relays with multimeter then fusible links. I rechecked the fuses and again they checked out okay. Also the radio light comes on and the clock works, the heater fan works, the power door locks work, the power sliding doors both work and the power liftgate works. The key alarm bell works when you insert the key. I'm wondering if the security system is malfunctioning.

I rechecked pins #4 and 5 for continuity. This time I removed the OBDII link up from its fastener under the dash and was able to get continuity on both pins with ignition switch off then with the key on. So far, I have checked all fuses with test lamp on both sides of the fuses. Test lamp lit up with no problems. I used my multimeter to check voltage, ohms and continuity. I also checked pins #30 and #87 to verify relays were good. All relays checked out okay. Lastly I ran a ground from the battery ground to pins #4and #5. There was no change. Ie no crank no start, OBDII still reading linking error. This van really has me stumped. The instrument cluster is completely dead with no lights coming on and no gauges working;The overhead lights and console lights up. Door lock switch locks the doors but will not unlock them the radio lights up with key on but will not play. Lastly, co crank no start. Could this be a bad ignition switch or a bad PCM. One last thing. When I turn the ignition to start position, the relay does click but no starter engagement. I remove the relay and use a jumper across #30 and #87 pins and the starter engages. The van was running fine. Drove it home and on the way home the radio quit working got home shut it off replaced fuse for the radio next morning started it up. It started then shut off and would not start back. After several attempts to start it, it got to a point where it is now. No crank no start no power to instrument cluster.

I rechecked fuses #24 and #23 they checked out ok. I then checked all connectors at bottom of TIPM and moved them around especially C-7 and C-9 I then unplugged and inspected each connector, no issues from visual observation was noted. It rained most of the day here and I didn't inspect the pcm I did check it a few days ago and didn't see any problems at the connectors but I didnt check the wiring for problems with a multimeter or a test lamp. I did notice that with the key on in the assessory position none of the assessories work. But in the run position, the heater fan, the sound system ie radio illuminates but wont play; the clock works the DVD changer attempts to work, the rear windshield wiper works The headlights, taillights, brake lights turn signals, emergency flashers and interior lights all work, however the front windshield wipers wont work. Then when I turn the switch to the start position, and attempt to start the van all the assessorie lights listed above, go out I can hear the starter relay clicking when I attempt to start the engine but nothing happens. Lastly I do hear the fuel pump engage when the key is on in the run position. It is supposed to be sunny tomorrow so I will recheck everything again.

Update I purchased a plug-N-play ECU/PCM It worked to start my van. However, my instrument cluster, radio front windshield wipers still don't work I can't understand how I still have most of the same issued because the van now runs. However when I start it up, it runs smoothly but after about 15 seconds it starts idling roughly and has a miss in the engine. I checked spark from the coil with a spark analyzer. All cylinders are firing still don't know what to do next.

Additionally my code reader is still reading linking error but it did analyze the engine enough that it set a code for oxygen sensor bank #1.