Door Locks and Dead Batteries
#1
Door Locks and Dead Batteries
Hello,
I'm having some weird problems with my 98 s40 that I'm hoping someone can help me with. The first symptom is that when click the lock button on the remote, the doors lock and then instantly lock again. I saw this behavior before when I accidently had a door open, the car wouldn't let me lock the doors (which kind of makes sense). Now the doors are definitely closed, but I'm getting the same result: all the doors lock and then immediately unlock.
The second symptom is that my battery dies after two days of no driving (even though it is new). The third symptom is that I have a headlight out (but the bulb is currently in the mail).
I'm assuming that the headlight has nothing to do with anything. However the dead battery and the door locking issue seem like they may be related.
Any ideas?
Thanks in advance,
Sid
I'm having some weird problems with my 98 s40 that I'm hoping someone can help me with. The first symptom is that when click the lock button on the remote, the doors lock and then instantly lock again. I saw this behavior before when I accidently had a door open, the car wouldn't let me lock the doors (which kind of makes sense). Now the doors are definitely closed, but I'm getting the same result: all the doors lock and then immediately unlock.
The second symptom is that my battery dies after two days of no driving (even though it is new). The third symptom is that I have a headlight out (but the bulb is currently in the mail).
I'm assuming that the headlight has nothing to do with anything. However the dead battery and the door locking issue seem like they may be related.
Any ideas?
Thanks in advance,
Sid
#4
#6
RE: Door Locks and Dead Batteries
Hi,
A couple of more questions are coming up. If we assume it is the lock assembly:
1. I'm afraid I don't understand why it would need to be the driver door. Couldn't it be any door?
2. Since I can say for sure that there were no headlights on etc. would a locking malfunction be enough to kill a battery in two days?
Sid
A couple of more questions are coming up. If we assume it is the lock assembly:
1. I'm afraid I don't understand why it would need to be the driver door. Couldn't it be any door?
2. Since I can say for sure that there were no headlights on etc. would a locking malfunction be enough to kill a battery in two days?
Sid
#8
RE: Door Locks and Dead Batteries
If one of the switches or locking solenoids are sticking, it could drain the battery that fast. In other words, when you lock it and release the fob, the stuck switch/solenoid reverts back to the unlock position. This would continually draw current. Hope this helps.
#10
RE: Door Locks and Dead Batteries
Understand that I am NOT an electrical expert, maybe someone else can chime in. But in my PA hillbilly way of doing things, you are looking for possible current draw. You would need to put a meter on the locking circuit and find the point at which current draws to where current stops flowing. This will change with key in 'on' position versus 'off' position. It will be time consuming, but you will find the point that is shorted/stuck. Maybe someone will write in and say the dealer has a do-hickey they can hook up and say right away, "Yeah, it's right here." You may want to start at the driver door, since tech says that is where it is controlled. Then work forward or backward, depending what you find. Good luck.
Thread
Thread Starter
Forum
Replies
Last Post