Description
If the vehicle is stationary during sensor check mode, speed sensor malfunctions cannot be detected. The vehicle must be driven for speed sensor malfunctions to be detected.
Hint:
Change to sensor check mode by connecting terminals tc and cg of the dlc3, and turning the ignition switch from off to on.
Wiring diagram

Inspection procedure

Standard resistance 
Replace abs and traction actuator assembly
Tc and cg terminal circuit
Abs and traction actuatorReporting safety defects
for u.S. Owners
If you believe that your vehicle has a defect which could cause a
crash or could cause injury or death, you should immediately
inform the national highway traffic safety administration
(nhtsa) in addition to notifying toyota motor sales, u.S.A., Inc.
(Toll-free: 1-800-331-4331).
If nhtsa re ...
Driving assist systems
To help enhance driving safety and performance, the following
systems operate automatically in response to various driving
situations. Be aware, however, that these systems are supplementary
and should not be relied upon too heavily when operating
the vehicle.
Abs (anti-lock brake system)
Help ...
Diagnosis system
Description
Air conditioning system data and the diagnostic
trouble codes (dtcs) can be read through the
data link connector 3 (dlc3) of the vehicle. When
the system seems to be malfunctioning, use the
intelligent tester to check for malfunctions and
perform troubleshooting.
...