Toyota Sienna Service Manual: Brake Warning Light does not Come ON
WIRING DIAGRAM
See page BC-52.
INSPECTION PROCEDURE
1 INSPECT BRAKE WARNING LIGHT
(a) Disconnect the skid control ECU connector.
(b) Turn the ignition switch to the on position.
(c) Check that the BRAKE warning light comes on.
OK: BRAKE warning light comes on.
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-7).
REPLACE BRAKE ACTUATOR ASSEMBLY
2 CHECK HARNESS AND CONNECTOR (BETWEEN SKID CONTROL ECU AND COMBINATION METER ASSEMBLY)
(a) Turn the ignition switch off.
(b) Disconnect the combination meter connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance
3 INSPECT COMBINATION METER ASSEMBLY
(a) Check the combination meter assembly (See page ME- 4).
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-7).
END
Brake Warning Light Remains ON
DESCRIPTION
If the ECU detects a trouble, it turns on the brake warning light at the same
time of prohibiting ABS
control.
At this time, the ECU records a DTC in memory.
Connect terminals TC ...
TC and CG Terminal Circuit
DESCRIPTION
DTC output mode is set by connecting terminals TC and CG of the DLC3.
The DTCs are displayed by the blinking pattern of the ABS warning light.
WIRING DIAGRAM
HINT:
When warning ...
Other materials:
Seat Belt Buckle Switch LH Circuit Malfunction
DTC B0126/27 Seat Belt Buckle Switch LH Circuit Malfunction
DESCRIPTION
The seat belt buckle switch LH circuit consists of the center airbag sensor
assembly and the front seat
inner belt assembly LH.
DTC B0126/27 is recorded when a malfunction is detected in the seat belt buckle
switch LH ...
Air outlets
Location of air outlets
The air outlets and air volume
changes according to the
selected air flow mode.
Adjusting the position of and opening and closing the air outlets
Center outlets
Right and left side outlets
Turn the knob to open or close the vent.
Direct air f ...
How to proceed with
troubleshooting
HINT:
Troubleshoot in accordance with the procedures on the
following pages.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
3 INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX
COMMUNICATION SYSTEM (BEAN)
Use the intelligent tester to check for norma ...
