Chrysler 300, 300C & 300C SRT-8 The flagship of the Chrysler lineup offers the driver every bit of class of any European luxury sedan, combined with the availability of the Hemi, the engine which dominated the American Muscle Car Era

Next on my list, ESP/BAS Light on and code C121A

Thread Tools
 
Search this Thread
 
Old Sep 10, 2018 | 01:22 PM
  #1  
Killavolt's Avatar
Thread Starter
|
Member
Joined: Aug 2018
Posts: 31
Default Next on my list, ESP/BAS Light on and code C121A

Pretty much the last thing I need to fix on my 2005 3.5L 300 Limited is the ESP/BAS light being on constantly. I've done a TON of digging into this and for all the info out there, there really doesn't actually seem to be much info beyond it being a steering angle sensor, or maybe dynamics sensor or maybe circuit open.

Turning lock to lock doesn't correct it, and moving the column bezel forward doesn't do anything either.

So is there anyway to confirm that it's the SAS without removing my entire steering wheel?

Also what the hell does that T30 screw do under the steering column. What does that hold in place?
 
Old Sep 11, 2018 | 03:30 PM
  #2  
Killavolt's Avatar
Thread Starter
|
Member
Joined: Aug 2018
Posts: 31
Default


Solved'er. I need a new clockspring. It looks like some idiot before me got in here and broke off a couple of pieces of plastic that they determined weren't important. However as it turns out these pieces of plastic are index marks for the Steering Angle Sensor as it works like a light sensor looking for the breaks in these index marks to determine the position of the steering wheel.
 
Old Nov 11, 2020 | 03:38 PM
  #3  
JosePerezTako's Avatar
Junior Member
Joined: Nov 2020
Posts: 2
Default

Just tighten the screw and the sensor should go away. You don't actually need a new Clockspring. At least that's what everyone else says.

See here's a video on YouTube:
 
Old Nov 11, 2020 | 05:02 PM
  #4  
Killavolt's Avatar
Thread Starter
|
Member
Joined: Aug 2018
Posts: 31
Default

Originally Posted by JosePerezTako
Just tighten the screw and the sensor should go away. You don't actually need a new Clockspring. At least that's what everyone else says.

See here's a video on YouTube: https://youtu.be/oejG_f62a9o

Did you even look at the picture posted literally right above your post??? The clock spring was broken, and it absolutely needed to be replaced.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
kevcot
Chrysler Aspen
6
Jul 24, 2016 12:21 PM
tamazeen
Chrysler Pacifica
3
Mar 17, 2011 10:43 PM
bgborden
Chrysler 300, 300C & 300C SRT-8
10
Mar 7, 2010 09:15 AM
rcubedor
300M, Concorde, LHS, New Yorker
0
Mar 23, 2008 11:06 PM
murry
General Tech
2
Dec 30, 2007 04:51 PM




All times are GMT -5. The time now is 09:58 PM.