Quote
marty
Guess what? It's playing up again...
This morning I pressed the boot release fob button, the boot popped open with two beeps.
Inside the car the red locking light was already on, and pressing to turn it off just got two beeps.
At work the doors locked perfectly.
Unfortunately the symptoms being intermittent is based on my experience a characteristic of a bad door lock controller. it did seem like the symptoms were more likely to happen at work. I sort of kind of remember thinking at the time the car needed to sit out in the sun some time. At home at least on work days if the car sat out it did so overnight and was cool.
For a good amount of time I thought the two beeps when locking the car was a center console door latch switch acting up. This belief was helped by after I'd open then close the console door the two beeps would not repeat. Or if just before I locked the car I had just been in the rear trunk to get something out I'd open and close the rear trunk lid. The thinking was a rear trunk lid latch switch was acting up. Kind of accepted this as by this time the car had considerable miles on it and I thought the switches might be wearing out. I had already dealt with a worn out brake light switch and a clutch interlock switch.
But at some point other odd behavior appeared. The doors locking on their own and the door lock button on the center stack lighting up on its own. I'd press this to unlock the doors and sometimes get the two beeps and towards the end after just a moment or two after unlocking the doors I'd hear the doors lock again on their own and LED would light up.
Another odd behavior was the passenger window failing to drop when the door was opened. Or worse, dropping but after the door was open a moment or two going back up again. It was this behavior that prompted me to get the car in for a diagnosis of the cause.