Reverse sonar/sensor/parking assist broken - help - Toyota FJ Cruiser Forum
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#1 (permalink) Old 06-07-2011, 12:20 PM
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Reverse sonar/sensor/parking assist broken - help

I have searched the forum + handbook extensively and not seen this issue.

Looks like someone bumped into my rear (that's the wife's story, and she's sticking to it!) now the sensor beeps twice, waits 2 seconds, beeps twice, 2 secs, etc..... and does not function.

I have checked the wiring as best as i could, checked the IG1 fuse, all seem OK, any ideas?? Or is it knackered.

Thanks in advance

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#2 (permalink) Old 06-07-2011, 12:41 PM
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Re: Reverse sonar/sensor/parking assist broken - help

I'm having a similar issue with mine. I'm interested to see replies as well.

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#3 (permalink) Old 06-07-2011, 02:30 PM
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Re: Reverse sonar/sensor/parking assist broken - help

If it's been bumped, then there are two possibilities A) the wiring needs to be re-seated on the back of the sensor, or B)the sensor itself needs to be replaced. If you haven't actually disconnected the wire from the sensor then re-connected it, that would be my first step. You will need to remove the rear bumper to get at the sensors, but it's literally a 10 minute job to pull the bumper. If after disconnecting and reconnecting everything you're still having an issue then it sounds like you'll want to replace the sensor.

One note, I have a sensor that got water in it during some wet wheeling then froze and hasn't worked right since. Mine doesn't do the two beeps then nothing, I actually have a solid tone the entire time when I turn the sensors on just like you would if you disconnected one of the two sensors. Those bad boys have been off for over two years because I didn't have the money at the time to replace them, and now I'm so used to not using them that I figure I don't need them.

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#4 (permalink) Old 06-07-2011, 02:33 PM
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Re: Reverse sonar/sensor/parking assist broken - help

I haven't used mine since the first week I bought the truck. Way too sensitive for my tastes, and it was always turning itself off.

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#5 (permalink) Old 07-11-2011, 12:45 AM
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Re: Reverse sonar/sensor/parking assist broken - help

same broke it and the tooke em all off!

07 fjc (Blue Jay) , and toyota custom buggy ,
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#6 (permalink) Old 07-11-2011, 02:25 PM
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Re: Reverse sonar/sensor/parking assist broken - help


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