need help with hard steering (1 Viewer)

[edes300]

Thank you for your advice. I have ordered the cable for Techstream and am waiting for it to arrive. My generic code reader doesn't show anything. I think I need the speficic codes to troubleshoot any further.

a little more background:
When I was changing the steering shaft my battery went completely dead and I had to replace it. I tried multiple times moving a few splines at a time but could never get the wheel perfect. In the end my wheel was off by about 45 degrees to the left. The VSC, Trac off and anti skid lights immediately came on when the new battery was installed and I drove the car a few feet. I don't think the clock spring is broken as all the steering wheel buttons still work fine and no airbag light is on. The steering wheel also turns all the way left and right without any problems. took the car to an alignment shop and had it realigned and assumed that the zero point calibration would take care of my issue. I've encounted this after changing tie rods on another car in the past.

I can't do the zero point calibration with the two paper clips as the VSC TRac lights won't blink during TEST MODE. There is probably some other issue that needs addressed but I won't know untill I get the proper codes.

 

[edes300]

Just got the Techstream hooked up and looked up the codes. Getting code c1234 yaw rate sensor. Tried to reset with test mode but so far no success can’t get the VSC VSC TRAC OFF lights to flash. The abs lights do flash. I have included the screen shots any ideas on what to do?

 

[jiggletits]

On any modern vehicle, your alignment shop should include resetting sensors related to the alignment along with the alignment. At least Toyota would if you had the alignment there, that's the only place I'll go for alignments after my last mess.

 

[edes300]

On any modern vehicle, your alignment shop should include resetting sensors related to the alignment along with the alignment. At least Toyota would if you had the alignment there, that's the only place I'll go for alignments after my last mess.

The blue asterisk in front of the c1234 code indicates lack of communication with the yaw sensor maybe a blown fuse or stuck relay. Maybe I need to reset some other sensor like steering angle but not giving any codes. Everything was fine before I changed the steering shaft. I hate to give up and take it in to the dealer. I have been able to service my KDSS and repair my secondary air injection system in the past.

 

[jiggletits]

The blue asterisk in front of the c1234 code indicates lack of communication with the yaw sensor maybe a blown fuse or stuck relay. Maybe I need to reset some other sensor like steering angle but not giving any codes. Everything was fine before I changed the steering shaft. I hate to give up and take it in to the dealer. I have been able to service my KDSS and repair my secondary air injection system in the past.

Could have twisted a wire just enough to short it. I think I have the same issue with my steering angle sensor. Replaced sensor, replaces ABS ECU. Still get code fir no voltage between them.

 

[edes300]

So here is where I’m at now. I tested the yaw rate harness according to page 05-810 of the service manual. I got 12.8 bolts when I measured voltage from ports GND to IG. I would think that means that the wiring is intact through the circuit. Going to replace the yaw rate sensor with a used one and see what happens. Only about 30 dollars for a used one. We will see what happens.

 

[edes300]

Happy to report ALL FIXED. I plugged in the used yaw sensor I bought on eBay for 30 dollars. Reconnected the battery and did the zero point calibration. This time worked perfectly all lights off

I think my initial mistake was not disconnecting the battery before I changed the steering shaft. At some point I must have fried the yaw sensor although I’m not sure how. The steering was not straight and it must have thrown the system off quite a bit.

Thank you for all those that helped. Greatly appreciated.

 

[Mauser]

Happy to report ALL FIXED. I plugged in the used yaw sensor I bought on eBay for 30 dollars. Reconnected the battery and did the zero point calibration. This time worked perfectly all lights off

I think my initial mistake was not disconnecting the battery before I changed the steering shaft. At some point I must have fried the yaw sensor although I’m not sure how. The steering was not straight and it must have thrown the system off quite a bit.

Thank you for all those that helped. Greatly appreciated.

Where is the yaw rate sensor located?

 

[Jstawgn]

Where is the yaw rate sensor located?

 

[GXO]

Intermediate shaft is a good find! I forgot to mention that on FB and will have to remember it. It is VERY BAD when you have that Ujoint pop. I replaced mine and it made a big difference. Good work on the yaw sensor!