Toyota Sienna Service Manual: 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
NOTICE: When replacing the brake actuator assembly, perform zero point calibration (See page BC-70).
1 CHECK CAN COMMUNICATION SYSTEM
(a) Check if the CAN communication system DTC is output (See page BC-82).
Result
2 INSPECT DLC3
(a) Turn the ignition switch to the ON position.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage
Result 
3 CHECK HARNESS AND CONNECTOR (TC of DLC3 - ECM)
(a) Turn the ignition switch off.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance 
4 CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND)
(a) Measure the resistance according to the value(s) in the table below.
Standard resistance
5 CHECK ECM (TC of DLC3 INPUT)
(a) Reconnect the ECM connector.
(b) Using SST, connect terminals TC and CG of the DLC3.
SST 09843-18040
(c) Turn the ignition switch to the ON position.
(d) Check that the check engine warning light is blinking.
Result 
HINT: If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (See page BC-79).
REPLACE BRAKE ACTUATOR ASSEMBLY
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 ...
TS and CG Terminal Circuit
DESCRIPTION
In the sensor check mode, a malfunction of the speed sensor that cannot be
detected when the vehicle is
stopped is detected while driving.
Transition to the sensor check mode can be ...
Other materials:
Installation with LATCH system (second seat)
Fold the seatback while pulling
the lever and move to the rearmost
recline position.
Widen the gap between the seat cushion and seatback slightly.
Type A
Latch the hooks of the lower
straps onto the LATCH
anchors. If the child restraint
has a top tether strap, the ...
Engine immobilizer
system
The vehicle’s keys have built-in transponder chips that prevent
the engine from starting if a key has not been previously registered
in the vehicle’s on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
This system is designed to help prevent vehicle the ...
How to proceed with
troubleshooting
HINT:
*: Use the intelligent tester.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
Confirm problem symptoms
3 CHECK MULTIPLEX COMMUNICATION SYSTEM*
Check if the multiplex communication system DTC is
output.
HINT:
The center airbag sensor assembly of this system is
co ...
