Toyota Sienna Service Manual: Hazard warning switch
INSPECTION
1. HAZARD WARNING SIGNAL SWITCH ASSEMBLY
- Check that there is resistance between the terminals at each switch position as shown in the chart.
Resistance
- Inspect illumination operation.
- Connect the positive (+) lead from the battery to the terminal 6 and negative (-) lead to the terminal 5, then check that the illumination comes on.
Turn signal light switch
ON-VEHICLE INSPECTION
1. INSPECT TURN SIGNAL FLASHER CIRCUIT
Measure voltage between the terminals as shown in
the chart below.
Voltage
Connect the connector to turn the si ...
Headlight leveling switch
ON-VEHICLE INSPECTION
1. HEADLIGHT LEVELING SWITCH
Connect the battery positive (+) lead to the terminal
1 and the battery negative (-) lead to the terminal 5.
Measure the res ...
Other materials:
SM Solenoid Circuit
DTC C1225/25 SM Solenoid Circuit
DESCRIPTION
This solenoid turns on when receiving signals the ECU and controls the
pressure acting on the wheel
cylinders to control the braking force.
WIRING DIAGRAM
Refer to DTCs C0226/21, C0236/22, C0246/23 and C0256/24 (See page BC-105).
INSPECTION PR ...
Throttle Actuator Control Motor Current Range / Performance
DESCRIPTION
The ETCS (Electronic Throttle Control System) has a dedicated power supply
circuit. The voltage (+BM)
is monitored and when it is low (less than 4 V), the ECM determines that there
is a malfunction in the
ETCS and cuts off the current to the throttle actuator.
When the volt ...
Precaution
1. INSPECTION PROCEDURE FOR VEHICLE INVOLVED
IN ACCIDENT
Perform the zero point calibration and sensitivity
check if any of the following conditions occur.
The occupant classification ECU is replaced.
Accessories (seatback tray and seat cover, etc.)
are installed.
...
