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:
Side Airbag Sensor Assembly LH Circuit Malfunction
DTC B1141/33 Side Airbag Sensor Assembly LH Circuit Malfunction
DESCRIPTION
The side airbag sensor LH circuit consists of the center airbag sensor
assembly and side airbag sensor
LH.
If the center airbag sensor assembly receives signals from the side airbag
sensor LH, it judges whether or
...
Inspection
1. INSPECT THERMOSTAT
(a) Inspect the thermostat.
HINT:
The valve opening temperature is inscribed on the
thermostat.
(b) Immerse the thermostat in water and gradually heat
the water.
(c) Check the valve opening temperature.
Valve opening temperature:
80 to 84°C (176 to 183°F) ...
Suspension system
How to proceed with troubleshooting
HINT:
This is the repair procedure for vehicle pull.
Problem symptoms table
FRONT SUSPENSION SYSTEM
REAR SUSPENSION SYSTEM
...
