Re: power door locks not working on 1998 honda accord lx
I promise this works 'cause I used it:
Put the key in the ignition, move the intermittent wiper control to the middle possition and then turn the key on.
just to clarify it's the ring that controlls the intermittent wiper speed and not the int / low/ high switch.
What this does is it resets the multiplex unit that controlls the accessories such as the power door locks. This problem usually happens once the battery has been removed or disconnected and reconnected.
Every once in a while the multiplex systems lock up. Especially on the 98s. That's how you wake em up.
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CarGurusOct 9, 2012 - Power Windows not working - I have a 2006 Honda Accord and thepassenger and back power windows quit working all at once. ... My key less entry doesn't work either after I replaced the master Window control unit. 6 out of ...
This is something you have to remove the door panel to before you can say what it is. But I don't advise a DIYer doing it because its a little tricky. I recommend taking it to a body shop . They do this stuff in their sleep let them deal with it. If you try it and mess up then you have no door lock. This is not a big repair.
There are two multiplex control units - one on the driver side and one onthe passenger side - which one did you unplug? The one on the driver side is the main "Brain" while the other one is the one that houses the keyless reciever. According to the service manual, any troubleshooting of this system must begin with the one on the driver side. It can get quite involved because Honda does not provide actual troubleshooting (symptom) charts, just descriptions of the electrical connectors and what conditions should be present at each conector pin under what system condition. (each pin has to be tested to determine what is malfunctioning) The system is not capable of outputting fault codes of any kind.
I am not sure what model Honda you have, but on both of the 1998 Honda Civic LX models I own , their locking/ unlocking problems were caused by a Power door lock control module, which is located in the drivers door, behind the inside door panel. There is a troubleshooting process you can go thru, by jumpering various wires to test each door, but if everything isn't working, and you have checked your fuse for the lock circuit, then the Power door lock control module is the most likely suspect.
If you take the door panel off, you can unplug the window motor connector and apply power to the motor and run it up if the motor still works. Sometimes they do because it's a switch problem. At the very least, you can confirm the problem this way.