Quote:
Originally Posted by mbzman
It is interesting that you noted that the relay was getting warm. I've noticed that when I open and close the driver's door several times I can hear that small relay with the vacuum hoses coming out of it start to click and get hot to the touch. I wonder if this is my problem and how I can troubleshoot it to determine if it is indeed defective.
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You should disconnect the hose going to it and plug its' end, if it cures your seat lock problem then that was it! If you want to diagnose the valve, disconnect the hose coming from it that goes to the rear headrest locks, connect your MityVac to the valve's outlet and observe the gage. There should not be any vacuum at the valve's outlet, operate the dash switch which should energise the valve and you should see vacuum at its' outlet.