door locks not working with fobs
#21
12-06-2022, 06:16 PM
Update. Bought a used "89221-06220 MPX Multiplex Network Body Control Module" from eBay and replaced the fusebox/integration relay under the dash.Fixed key chime, dome lights, key fob for doors and trunk not working. I would have bought new, but didn't find one listed.
For those looking to replace it, I'll edit this with instructions on the easiest way to go about it later.
It's located on top of your fuseblock on driver's side dash. To get to it, there's one 10mm bolt you can reach from underneath.
The 2 10mm bolts and all 6 of the plugs can be reached much easier if you take off the bottom dash cover.
To do it, start with unsnapping shoeboard from the doortrim. Then unsnap the the side kick cover. And then side dash cover that is vertical to dash.
Once those are exposed, there's a 10mm bolt and a phillips trim screw on the bottom horizontal dash cover. Remove those and pull the bottom cover off. it has press connects at top. Airbag assembly stays mounted, we're just getting the bottom cover off.
Then you can easily remove the other 2 10mm nuts holding the MCM/fuseblock assembly. Take pics of the 6 connectors plugged into the MCU and the order you removed them. I found it helpful to remove the 2-3 plugs from the front first, then work the MCM around to remove the back ones.
Reverse it to reinstall. Take your keys out of the ignition before plugging in your last few plugs, when it goes live you'll have a dinging in your ear.
Thanks toyomoho for your excellent replies. The wife is happy again!
For those looking to replace it, I'll edit this with instructions on the easiest way to go about it later.
It's located on top of your fuseblock on driver's side dash. To get to it, there's one 10mm bolt you can reach from underneath.
The 2 10mm bolts and all 6 of the plugs can be reached much easier if you take off the bottom dash cover.
To do it, start with unsnapping shoeboard from the doortrim. Then unsnap the the side kick cover. And then side dash cover that is vertical to dash.
Once those are exposed, there's a 10mm bolt and a phillips trim screw on the bottom horizontal dash cover. Remove those and pull the bottom cover off. it has press connects at top. Airbag assembly stays mounted, we're just getting the bottom cover off.
Then you can easily remove the other 2 10mm nuts holding the MCM/fuseblock assembly. Take pics of the 6 connectors plugged into the MCU and the order you removed them. I found it helpful to remove the 2-3 plugs from the front first, then work the MCM around to remove the back ones.
Reverse it to reinstall. Take your keys out of the ignition before plugging in your last few plugs, when it goes live you'll have a dinging in your ear.
Thanks toyomoho for your excellent replies. The wife is happy again!
Last edited by pbroussard; 12-07-2022 at 10:36 AM. Reason: more info
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