I just installed a new electric oem radiator fan and Thermo switch A, number 14, in this diagram. My cooling issues were solved. However, radio, door locks, remote fob, cruise now wont work. There is a wire that is grounded to the thermostat housing. Does anyone have an electrical diagram of that ground?

 

I'm pretty sure that is G101 that grounds the PCM and a bunch of other stuff. I'd disconnect the battery, unbolt that ground, clean with a wire brush or sand paper, check for any damage, then reattach.

 

Thank you! Am going to try that in the morning. Anyone got the wiring diagram for G101?? Would like to see what all is on that ground there. [

 

Here is what the shop manual says is grounded by G101. PCM (engine computer), idle air control solenoid valve, radiator fan switch, main fuel relay, egr control valve, shift control solenoid, a/t gear position switch, crank sensor, tdc sensor, all O2 sensors, main shaft speed sensor on transmission, countershaft sensor, vtec switch, obd2 connector, immobilizer.

The picture of the ground shows an eyelet with 2 wires at the thermstat housing. I think one is black and the other is either black or brown with a black stripe. I'm not sure exactly where the sensors tie into those wires, but they are not likely near the bolt you removed. I'd pull back the harness cover to see if you broke/pinched a wire when doing the work.

Since you have other items not grounded by G101 not working, you might want to check the fuses on your car. If you have a test light or a volt meter, there is a very quick way to test the fuses. Search How to check a Car FUSE on Youtube to see how to test.

 

Thank you for the information! I am getting ready to dig back into it. Since you said that 2 wires are attached, I think I didnt get 2 hooked back up. I am going to make it a little more accesible this time so I can see better. What is the best free wiring diagram for this area and other areas of the car?

 

When replying to a post, click on the quick reply, so the previous post isn't copied. It makes reading the thread easier.

automaunalsource.com has a pdf of the shop manual for ~$22 and is woth the investment IMO. You'll have to search the web to see if free versions are out there. The common diy thread on top of the gen tech help forum has a link for online shop manuals. Some of the links may still work to sites that have shop manuals you can download for free.

The picture of the eyelet shows one eyelet with two wires crimped to the eyelet, so you'd only attach one eyelet.

To figure out what happened, you'll need a volt meter. Pick a system that isn't working, then test for power and ground at the appropriate wires to that component. Then you can start working backwards to identify a single cause for the multiple components that are out. I'd pick a system that is easy to access the electrical connector.

 

Ok. I took the eyelet loose and it did contain both wires. Sanded everything down, re connected it, and also then checked it for ground continuity. The only change then was now when I try the electric door locks, something clicks under the glovebox kinda under the passenger side fuse box. Fuses are all good. Any idea then now what is actually clicking with door locks. It got power to something lol

 

Just curious. I have a 2002 Jeep Grand Cherokee Limited. I found a company last year and they used my vin and something else to send me a reprogrammed and tested exchange ecm. Is there a company that does that with a 1998 Accord V6??

 

The click you hear is likely a relay that is part of the multiplex control unit. The MCU is Honda's version of a body control module.

I don't think you are to the point where you need to think about a new PCM. Your car still starts and runs, so I would put a bad PCM at the bottom of the list of possible causes.

If the factory stereo is not powering on at all, maybe start by pulling the stereo. Use a volt meter to check for power to pins 2 and 10 with the key in the II position, but the car not running. Use something bare metal as the ground for your volt meter. Let us know if pins 2 or 10 have or do not have 12V. Check for continuity to ground for the two black wires to the stereo.

 

Thank you. Makes sense. Can you find used MCU’s? Ok, will check on those pins on back of radio in the morning. Do you happen to have basic instructions on how to get radio out? Probably a bunch of trim and clips I would think.