You have been on quite the odyssey here! Asking the original guy to look at it is probably a good bet, i'd want him to call me before trying any real fixes though beyond something simple.
Christmas tree far from home help
- Thread starter roadsalt
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Where were the wires loose? At the plug or going into the back of the sensor? Before you go crazy, I'd replace the one sensor, they're not too expensive. One bad sensor with a janky connection could cause intermittent issues.
Also, to my knowledge any one sensor bad can trip P0500, and there's no way to tell which one, so the Toyota dealer saying it "Tripped all 4" makes no sense.
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OEM Parts online aren't that bad, $225 per sensor, $125 or $145 for the harness from Olathe Toyota. Should be about the same from other reputable OEM sources online. Not nothing, but less than half what you were thinking.
cheaper than a damaged sensor. good luck with your fixes
O'Reilly sells the sensor for about $40. Not sure about the harness.
P0500 is triggered in 2 trips. The first one will set a pending code, the second trip will give you the warning lights.
The transmission speed sensors NT and SP2 correspond to P0717 and P0722, which you do not have.
So which wheel was worked on? That's where I would start. Get a 10mm socket and remove the bolt holding that sensor, pull the sensor (might need to get a flathead and pry it out) and inspect it. They're magnetic, so sometimes bearing and other metal can stick to the end of the sensor and cause problems. Wipe the sensor clean and re-install it. Make sure it's fully seated in the hole, bolt it down, go drive the car but use cruise control, that SHOULD cause P0500 to set immediately if there is still an issue.
ALso, the tip of the sensor could have broken off, this happens when people forget to pull the sensor before removing the axle shaft..........
roadsalt
Crusty 05 LX470
- Thread starter
- #29
The saga is over hopefully. The issue was solved. The mechanic mistakenly installed the sensors by the wrong wheels. So essentially, the car thought it was going in reverse. Or so I'm told. At any rate. I took it into toyota to clear the codes & give it a look over. Seems like I'm back in business, finally.
What a story.
The story bothers me because—unless I’m having a midnight stroke—those sensors are side-specific but are also identical front and rear. So you physically can’t install the right-side sensor on the left-side of the vehicle (the connector would be facing in toward the knuckle), and it doesn’t matter if they’re swapped front to rear.
I wonder what really happened.
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roadsalt
Crusty 05 LX470
- Thread starter
- #31
Yep I caught that, which is why I wrote ‘or so I’m told’. They f’d up something and didn’t want to tell me. Or it’ll come back on my next highway trip. Or they don’t even know what it’s was but after taking it apart and rebuilding they inadvertently fixed what they broke.