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2002 Corolla Lights Randomly Flash
07-31-2015, 12:45 PM
Post: #1
2002 Corolla Lights Randomly Flash
Hello, I am new to the forum but excited to be here and looking for any help/advice I can receive and hope to be able to reciprocate when possible. I have a 2002 Toyota Corolla. The issue I have been having is that the headlamps and tail lamps are flashing randomly. They flash for about 10 seconds then stop for about 30 seconds then flash again. There is also a clicking sound(similar to the one made when the hazards are on) heard from the inside. I know it is not the hazards because when I turn the hazards on their is another, separate clicking noise made and the flashing lights are brighter. I have attempted to reset the computer, pull out and put back in all fuses to no avail. Any help with this issue would be greatly appreciated. I would be happy to clarify any foggy or missing details if needed. Thank you in advance.
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07-31-2015, 06:45 PM
Post: #2
RE: 2002 Corolla Lights Randomly Flash
Before we go further I have to ask if this happens when the headlight switch is on, is this the daytime running lights, is there any sort of automatic headlight situation, such as operated by an ambient light sensor. (usually on the dashboard) Also, can you duplicate this in the driveway while the car is in park / neutral, or must you be driving? Last but not least, has the car had any recent major work on the body or driveline?
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07-31-2015, 08:07 PM
Post: #3
RE: 2002 Corolla Lights Randomly Flash
(07-31-2015 06:45 PM)Rupe Wrote:  Before we go further I have to ask if this happens when the headlight switch is on, is this the daytime running lights, is there any sort of automatic headlight situation, such as operated by an ambient light sensor. (usually on the dashboard) Also, can you duplicate this in the driveway while the car is in park / neutral, or must you be driving? Last but not least, has the car had any recent major work on the body or driveline?

Yes, this continues when the headlights are turned from off to on, it happens whether in the dark garage or in the driveway during the daytime, it occurs in park, neutral and when the car is being driven. The only thing that has occurred since owning the vehicle is the replacement of the brake light switch plug, a small plastic part near the break pedal. That is it. Some other folks have speculated that it is a aftermarket alarm, I only have hard keys and no remote/fob to turn it off.
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08-01-2015, 09:29 AM
Post: #4
RE: 2002 Corolla Lights Randomly Flash
If the duration of the flashing sequence is always the same then the aftermarket alarm is a good guess. IOW, it may be an alarm without a remote start. In that case you'd need to hunt around for something that doesn't look original and follow the wires to see if they were spliced in the typical odd-ball fashion most installers use. Most of the time the alarm module will be close to the steering column under the dash so the easiest way to spot it would be to remove that panel above the driver's knees. There may also be a clue in the form of a switch located under the hood that's triggered when the hood is opened. Just follow the wire back to the main module. Any extra wires stuck into one of the fuse panels can also be followed. Unless this is an OEM alarm the wires will always be outside of the harness so easy to spot.
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08-01-2015, 12:33 PM
Post: #5
RE: 2002 Corolla Lights Randomly Flash
(08-01-2015 09:29 AM)Rupe Wrote:  If the duration of the flashing sequence is always the same then the aftermarket alarm is a good guess. IOW, it may be an alarm without a remote start. In that case you'd need to hunt around for something that doesn't look original and follow the wires to see if they were spliced in the typical odd-ball fashion most installers use. Most of the time the alarm module will be close to the steering column under the dash so the easiest way to spot it would be to remove that panel above the driver's knees. There may also be a clue in the form of a switch located under the hood that's triggered when the hood is opened. Just follow the wire back to the main module. Any extra wires stuck into one of the fuse panels can also be followed. Unless this is an OEM alarm the wires will always be outside of the harness so easy to spot.

There is a odd looking switch to the left of the steering wheel below the dash.[Image: !BcsWclgBWk~$(KGrHqUH-DkEqutDJNbHBK1kiIN1nw~~_35.JPG]
This is what it looks like, this is aftermarket right?
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08-02-2015, 02:03 AM
Post: #6
RE: 2002 Corolla Lights Randomly Flash
Sorry for the delay as I was out on a family function earlier.

Yes, that is most likely part of the system and typically what they call a "valet switch" used to disable the system when you let someone else park or drive your car. Follow the wires and see where they go. Usually you can remove the entire system and splice any wires back to their OEM positions, then you are set.
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08-02-2015, 10:27 PM
Post: #7
RE: 2002 Corolla Lights Randomly Flash
Just curious, but did you try flipping the switch the other way? May-be it was "Off" and you bumped it accidentally and turned it "On?" May-be it's as easy as turning the switch back "Off?"

Thanks for using the forum,
Garner

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