Toyota Sienna Service Manual: Skid Control Buzzer Circuit
DESCRIPTION
The skid control buzzer sounds and SLIP indicator blinking during VSC operation.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST USING INTELLIGENT TESTER (SKID CONTROL BUZZER)
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine.
(c) Select the item "VSC / BR WARN BUZ" in the ACTIVE TEST and operate the skid control buzzer on the intelligent tester.
ABS / VSC: 
(d) Check that skid control buzzer sounds by operating with the intelligent tester.
OK: The skid control buzzer sounds in accordance with operation of the intelligent tester.
REPLACE BRAKE ACTUATOR ASSEMBLY
2 INSPECT SKID CONTROL BUZZER
(a) Disconnect the skid control buzzer connector.
(b) Apply battery negative voltage to terminal 1, and battery positive voltage to terminal 2 of the skid control buzzer connector, and check that the buzzer sounds.
OK: The skid control buzzer sound should be heard.
3 CHECK HARNESS AND CONNECTOR (SKID CONTROL BUZZER - SKID CONTROL ECU)
(a) Disconnect the skid control buzzer connector and the skid control ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance 
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance
NOTICE: When replacing the brake actuator assembly, perform zero point calibration (See page BC-70)
REPLACE BRAKE ACTUATOR ASSEMBLY
Slip Indicator Light does not Come ON
DESCRIPTION
The skid control ECU is connected to the combination meter via CAN and
multiplex communications.
The SLIP indicator blinks during VSC and/or TRAC operation.
When the system fails, ...
TC and CG Terminal Circuit
DESCRIPTION
Connecting terminals TC and CG of the DLC3 causes the ECU to display the DTC
by blinking the ABS
warning light and/or VSC warning light.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTI ...
Other materials:
Speed Signal Circuit
DESCRIPTION
The clearance warning ECU receives the vehicle speed signal from the
combination meter.
HINT:
A voltage of 12 V or 5 V is output from each ECU and then input to
the combination meter. The signal
is changed to a pulse signal at the transistor in the combination meter.
...
Rear window wiper and
washer
Operating the wiper lever
Turning the end of the lever turns on the rear window wiper and
washer.
The illustration is intended as an example.
*1 or
*2
Intermittent window
wiper operation
*1 or
*2
Normal window wiper
operation
Washer/wiper dual operation
Washer/wiper du ...
Removal
1. REMOVE BACK DOOR CENTER GARNISH (See page
ET-18)
2. REMOVE POWER BACK DOOR ROD (See page ED-
220)
3. REMOVE BACK DOOR LH SIDE GARNISH
4. REMOVE BACK DOOR RH SIDE GARNISH
5. REMOVE BACK DOOR PULL STRAP (See page ED-
221)
6. REMOVE BACK DOOR TRIM BOARD ASSEMBLY
7. REMOVE LH BACK-UP LIGH ...
