2010 Gen 3 Prius Clock Spring Replacement

Some more photos

1. Shrouds removed.
2. various cables/connectors attached to the clock spring and steering wheel sensor.
3. Yellow (or green [sorry color blind]) connector is connected to steering wheel sensor. Need to push in the part at the botton in order to unlock the connector.
4. My $20 clock spring did not come with the sensor so I had to remove the old one and re-use it on the new one. It is attached with 4 tabs.
5. broken clock spring with whee sensor attached
6. sensor removed
7. another view of sensor removed

 

The Prius is now reassembled. It took some patients to snap together the sensor to the clock spring, the yellow (Green?) connector, the shrouds, but I eventually got it.

Airbag light is now unlit on my dash
horn now works
audio controls work
mode button works
temp buttons now work
steering wheel no longer makes that scraping sound

All above is fixed and working great

A new issue has now come up due to my repair. The slip indicator light (car skidding icon on dash) is now constantly on. Could this be linked to the steering wheel sensor? Maybe it needs calibration now that I installed it on a new clock spring?

 

my steering wheel puller came with three sizes for the bolts. I used the ones that were easily installed by hand and then tightened with a socket wrench. I don't know if it was M8x1.25. Unfortunately the part that striped was the steering wheel and not the wheel puller bolt. The only thing I can think of is maybe the both asnt the same pitch or maybe I didnt have that one screwed in far enough, but I thought I had given it enough turns.

 

I think when this is on permanently, it means the anti slip system has been deactivated for some reason. I am not sure how that could have happened with the fix that I did. And yes, the other function of this light is for the anti roll back function, that you mentioned. Next time I am on a hill I should validate that that is still working.

 

I will keep that in mind if I ever need to remove it again.

 

Hello again. I have been traveling on business and had to put this aside for a bit. Today I got some time to remove the negative lead to try and reboot the cars CPU and hopefully reset the Anti Slip Dash Light.

Nothings easy. While trying to unscrew the negative terminal the wrench fell under the battery so I had to take the entire battery out. Finally got it back together and fired up the car. The Anti Slip light is still permanently on. This doesnt seem to be something that should be effected by the clock spring so I am a bit confused as to why it happened as soom as I replaced the clock spring. It was working fine with the broken clock spring.

I have a Maxiscan MS300 OBD II Code Reader. It showed no error codes. I used the reset option anyway even though there was nothing to clear. That did not help.

...and last item. About a day after my last post (prior to this one the airbag light on the dash came back on and has not gone off since. This also did not register any error codes on the Maxiscan.

Any ideas or is it time to take it to Toyota.

They will probably charge me as much as they would have charged for the clock spring replacement to resolve these last two issues. Sigh.

 

Any idea if the pins are labeled correctly for a 2010 Prius? This seems to be for GEN 2
https://www.toyotaparts.metro-toyota.com/TIRE_PRESSURE_MONITORING_SYSTEM_(TPMS)_TIRE_REGISTRATION_LOST_COMMUNICATION_WITH_ECU_T-SB-0084-09.pdf

 

I am finally giving in and have scheduled an appointment with my Toyota dealer for service. I will report back what they find in case it helps anyone else.

 

No need to be sorry. You have been very helpful and I don't expect a response just because you responded in the past.

Anyway, my service bill says the following. Codes B1810 Short In Circuit & C1231 Steering Angle Circuit were visible with their scan tool. I was told that the sensor that was mounted on the original clock spring is not meant to be removed and used on a new clock spring. They replaced my $20 ebay clock spring + old sensor with a new $770.72 Clock Spring/Sensor Part 84307-47020. The total with Labor was $1006.72.

So if I had known this I would have searched for a clock spring/sensor assembly and probably could have saved maybe $500.00.

Anyway, the car is repaired and all is well.

Thanks to all who provided input on this issue.