Toyota Camry Manual page 938

BR–252
BRAKE SYSTEM – ANTI–LOCK BRAKE SYSTEM (ABS)
FRONT SPEED SENSOR
COMPONENTS
FRONT SPEED SENSOR AND SENSOR
ROTOR SERRATIONS INSPECTION
(REFERENCE)
INSPECT FRONT SPEED SENSOR AND SENSOR
ROTOR SERRATIONS BY USING AN OSCILLO–
SCOPE
(a) Connect an oscilloscope to the speed sensor connec–
tor.
(b) Run the vehicle at 20 km/h (112.4 mph), and inspect
speed sensor output wave.
(c) Check that C is 0.5 V or more.
If not as specified, replace the speed sensor.
(d) Check that B is 30% or more of A.
If not as specified, replace the drive shaft.
FRONT SPEED SENSOR REMOVAL
1. DISCONNECT SPEED SENSOR CONNECTOR
(a) Remove the fender shield.
(b) Disconnect the speed sensor connector.