Backup Sensors
Senior User
Joined: Mar 2008
Posts: 377
Likes: 1
From: Nor Cal, Sacramento
Here is how I diagnosed mine.
Take a mechanics stethescope and while the car is in reverse, but engine off so you don't run over yourself, listen with the scope to each of the sensors. They will make a clicking sound if they are working. Even had my wife do it so easy to do.
I had the switch illuminated and never worked since I bought the car. 30 seconds and I found the left outside sensor was bad. $130 dealer cost for a new sensor and an hour of work will fix it. Looking for a lower priced part right now.
Take a mechanics stethescope and while the car is in reverse, but engine off so you don't run over yourself, listen with the scope to each of the sensors. They will make a clicking sound if they are working. Even had my wife do it so easy to do.
I had the switch illuminated and never worked since I bought the car. 30 seconds and I found the left outside sensor was bad. $130 dealer cost for a new sensor and an hour of work will fix it. Looking for a lower priced part right now.
Logistics Pro
Joined: Jun 2009
Posts: 4,815
Likes: 83
From: Cedar Rapids, IA
That's great information! Fortunately my scan tool will allow me to diagnose the sensors, but I never would have thought to see if they make audible sound! I figured they were ultrasonic and therefore well outside of the audio frequencies.
-Rod
-Rod
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