trikepilot

Thanks to everyone who helped me with my CD player fix in another thread but now I'm back with a new problem. The parking assist on my 2007 ES 350 which has worked flawlessly for nearly 10 years now is acting up. The green light does not light up when you press the button, instead you hear a faint beep sound for every other press. I'm assuming the "on" press is when the beep occurs but without the light I just don't know. I had the wife walk all around the car with the button in both modes and nothing. Not a squeak, not a display as usual on the nav screen, it is just not seeing any objects front or rear. My manual lists fuses 1-38 under the hood and 1-31 under the dash but none of them spell out parking assist in the description. Short of pulling and checking 69 fuses can someone point me in the right direction for diagnosing this problem?

nevernu

the clearance warning ECU assy is in the trunk location where the amp is, perhaps the connector came loose? Maybe this wiring/system diagram is useful

c41006

Did you ever find a solution? My 2008 ES is doing the exact same thing.

carl0sfuen

the bulb inside the switch burned out, it happen to me

parkAssist

how did you replace the bulb? My sensors work, but the light on the parking assist button doesn’t turn on

carl0sfuen

I took the little switch panel and I took the bulb out from the rear sunshade button and transferred it over to the parking sensor button. I couldn't find the bulb online, I kept ordering the wrong one I just gave up. By the way, when you press the parking sensor button and you hear a beep beep means it's on.

carl0sfuen

I took the little switch panel and I took the bulb out from the rear sunshade button and transferred it over to the parking sensor button. I couldn't find the bulb online, I kept ordering the wrong one I just gave up. By the way, when you press the parking sensor button and you hear a beep beep means it's on.

parkAssist

how did you take out the panel? And how did you transfer it?