Toyota Sienna Service Manual: ABS Control System Malfunction
DTC 43 ABS Control System Malfunction
DESCRIPTION
This DTC is output when the VSC system detects a malfunction in the ABS
control system. 
INSPECTION PROCEDURE
NOTICE: When replacing the brake actuator assembly, perform zero point calibration (See page BC-70).
1 CHECK ABS CONTROL SYSTEM
(a) Clear the DTC (See page BC-82).
(b) Turn the ignition switch to the ON position.
(c) Check if the same DTC is recorded (See page BC-82).
Result
2 RECONFIRM DTC
(a) Turn the ignition switch off.
(b) Clear the DTC (See page BC-82).
(c) Start the engine.
(d) Drive the vehicle at a speed of approximately 40 km/h (25 mph) or more for 60 seconds or more.
(e) Check if the same DTC is recorded (See page BC-82).
Result
CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION)
Diagnostic trouble code chart
HINT:
If a malfunction code is displayed during the DTC check,
check the circuit indicated by the DTC. For details of each
code, turn to the page for the respective "DTC Code" in the
DTC ...
Right Front Wheel Speed Sensor Signal
DESCRIPTION
The speed sensor detects wheel speed and sends the appropriate signals to the
ECU. These signals are
used to control the ABS control system. The front and rear rotors have 48
ser ...
Other materials:
Disassembly
1. REMOVE OCCUPANT CLASSIFICATION ECU
2. REMOVE FRONT SEAT CUSHION SHIELD INNER RH
Remove the screw.
Using a screwdriver, disengage the claws and
remove the cushion shield inner.
HINT:
Tape the screwdriver tip before use.
3. REMOVE FRONT SEAT INNER BELT ASSEMBLY RH
&nbs ...
Installation
HINT:
Use the same procedures for the RH side and LH side.
The procedures listed below are for the LH side.
1. INSTALL FRONT AIRBAG SENSOR LH
Check that the ignition switch is off.
Check that the battery negative (-) terminal is
disconnected.
CAUTION: ...
Installation
1. INSTALL REAR SEAT 3 POINT TYPE BELT
ASSEMBLY (for 8-Passenger)
HINT:
Refer to the instructions for reassembly of the rear No. 1
seat assembly (for center seat).
Install the rear seat 3 point type belt assembly with
the bolt.
Torque: 42 N*m (430 kgf*cm, 31 ft.*lbf)
2. INSTALL ...
