1994 LS 400 Strange Beeps
09-28-21, 05:43 PM
#1
Driver School Candidate
Thread Starter
1994 LS 400 Strange Beeps
Hello,
I have a 1994 LS400 that will beep after turning off the car and sitting in it for a little bit. It's NOT immediately after I take the key out. It will beep a few times in a row and then just stop.
Does anyone know what that could be warning me of?
Thank you for your help.
Melissa8
I have a 1994 LS400 that will beep after turning off the car and sitting in it for a little bit. It's NOT immediately after I take the key out. It will beep a few times in a row and then just stop.
Does anyone know what that could be warning me of?
Thank you for your help.
Melissa8
09-29-21, 12:24 AM
#2
Hi Melissa,
First, we need to understand what kind of beep your car is making. A recording of the sound would be the most helpful.
1. Does the car have an aftermarket alarm system equipped with a key fob remote? It could simply be that the car is arming the alarm system after sitting turned off.
2. Does your car have a moonroof, and does the beeping sound happen to sound like this?
Example video:
If it's this exact sound, then it's the moonroof open alert, even if it's chiming after the car is sitting for a little bit.
This could happen either because the moonroof is not fully closed, or the car thinks that it is partially open from a failing switch.
Try to re-close your sunroof, and make sure that it does this fully to resolve this issue.
3. Does it sound like the lock/unlock beep (included in LS 400 models starting in 1993)?
Example:
In this video, the car plays the unlock sound (2 beeps), followed by the lock sound (1 beep).
If your car is doing this multiple times, then it could be that the car for some reason is auto locking or unlocking after sitting. It would be important to note if the car's door locks move during the beeping.
------
These are just a few thoughts I have off the top of my head. Please let us know. Hope this helps.
First, we need to understand what kind of beep your car is making. A recording of the sound would be the most helpful.
1. Does the car have an aftermarket alarm system equipped with a key fob remote? It could simply be that the car is arming the alarm system after sitting turned off.
2. Does your car have a moonroof, and does the beeping sound happen to sound like this?
Example video:
If it's this exact sound, then it's the moonroof open alert, even if it's chiming after the car is sitting for a little bit.
This could happen either because the moonroof is not fully closed, or the car thinks that it is partially open from a failing switch.
Try to re-close your sunroof, and make sure that it does this fully to resolve this issue.
3. Does it sound like the lock/unlock beep (included in LS 400 models starting in 1993)?
Example:
In this video, the car plays the unlock sound (2 beeps), followed by the lock sound (1 beep).
If your car is doing this multiple times, then it could be that the car for some reason is auto locking or unlocking after sitting. It would be important to note if the car's door locks move during the beeping.
------
These are just a few thoughts I have off the top of my head. Please let us know. Hope this helps.
The following users liked this post:
CELSI0R (09-29-21)
10-02-21, 06:51 AM
#4
Speaking of beeps. I have a LS 400 2000 model. Recently, my right blinker, not left, and right blinker only on an incline will make a deep beeping sound akin to how the blinkers on 60's cars use to make. It seems to be coming from the right rear (maybe trunk) of the car.
As soon as I turn and the blinker is off the sound stops. It does not make the sound on a flat road. This makes me think a fluid is involved or a metal contact influenced by gravity.
Trusted tech guy thinks (without really looking at it) that there is a module that controls the blinkers that may have a problem.
This just started after I used a cell phone charger plugged in to the cigarette lighter. I wonder if this is what caused the problem.
Thank you,
John
As soon as I turn and the blinker is off the sound stops. It does not make the sound on a flat road. This makes me think a fluid is involved or a metal contact influenced by gravity.
Trusted tech guy thinks (without really looking at it) that there is a module that controls the blinkers that may have a problem.
This just started after I used a cell phone charger plugged in to the cigarette lighter. I wonder if this is what caused the problem.
Thank you,
John
Thread
Thread Starter
Forum
Replies
Last Post