VSC + VSC OFF, no CEL?

[atod]

Hi Folks

I've read a bunch of posts mentioning things to check such as steering angle sensor and some other sensors under the wheel (clean them?). This is a 2000 Toyota Avalon and the CEL is off. I can confirm the VSC does not work even after pressing VSC button.

Does anyone have any diagnostic suggestions to resolve this?

Thanks

[atod]

I see there are a few TSBs in regards to this. Unfortunately, I don't know how to view the actual contents of the TSB (only the summary). Does anyone know where the steering angle sensor is located, how to clean and re-calibrate? Thanks

Make : TOYOTA Model : AVALON Year : 2000
Service Bulletin Number: 344
Replacement Service Bulletin Number:
NHTSA Campaign ID Number : 616015
Date of Bulletin: 11/01/2000 Date Added to Database: 02/07/2001
Component: 036000 SERVICE BRAKES, HYDRAULIC:ANTILOCK
Summary: SOME VEHICLES EQUIPPED WITH VEHICLE SKID CONTROL (VSC) SYSTEM MAY EXHIBIT VSC AND VSC OFF LIGHTS ON (DTC C1301 / 42) IN CONJUNCTION WITH A MALFUNCTION INDICATOR LIGHT ON (DTCS P0440, P0441, AND / OR P0446). *TT


Make : TOYOTA Model : AVALON Year : 2001
Service Bulletin Number: ST00700
Replacement Service Bulletin Number:
NHTSA Campaign ID Number : 618291
Date of Bulletin: 09/22/2000 Date Added to Database: 04/11/2001
Component: 010000 STEERING
Summary: STEERING ANGLE SENSOR CALIBRATION ON CERTAIN VEHICLES WITH VEHICLE SKID CONTROL (VSC) SYSTEM. *JB