Toyota Sienna Service Manual: On-vehicle inspection
1. INSPECT SEAT POSITION SENSOR (VEHICLE NOT INVOLVED IN COLLISION)
- Perform a diagnostic system check.
2. INSPECT SEAT POSITION SENSOR (VEHICLE INVOLVED IN COLLISION)
- Perform a diagnostic system check.
- Even if the airbag was not deployed, check if there
is any damage to the seat position sensor.
If there are any defects as mentioned below, replace the seat position sensor with a new one:
- Cracks, dents or chips on the sensor housing.
- Cracks or other damage to the connector.
CAUTION: Be sure to follow the correct removal and installation procedures.
Seat position sensor
COMPONENTS
...
Removal
1. PRECAUTION
CAUTION: Be sure to read "PRECAUTION" thoroughly before
servicing.
2. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait for 90 seconds after disconnecting th ...
Other materials:
Open or Short Circuit in ABS Motor Relay Circuit
DESCRIPTION
The ABS motor relay supplies power to the ABS pump motor. While the ABS &
TRAC & VSC are
activated, the ECU switches the ABS motor relay ON and operates the ABS pump
motor.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 PERFORM ACTIVE TEST USING INTELLIGENT TESTER (AB ...
Ignition Switch Circuit
DESCRIPTION
When the ignition switch is turned to the ON position, battery positive
voltage is applied to terminal IG of
the ECU. When battery positive voltage is applied to terminal IG of the ECU
while the theft deterrent
system is operating, the warning stops.
WIRING DIAGRAM
INSPECTIO ...
Brake Switch "A" Circuit
DTC P0571 Brake Switch "A" Circuit
DESCRIPTION
When the brake pedal is depressed, the stop light switch sends a signal to
the ECM. When the ECM
receives this signal, it cancels the cruise control. The fail-safe function
operates to enable normal driving
even if there is a malfuncti ...
