Toyota Sienna Service Manual: Park / Neutral Position Switch Circuit
DESCRIPTION
The clearance warning ECU receives the reverse or park position signal from the park / neutral position switch.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT CLEARANCE WARNING ECU
- Disconnect the C9 connector from the clearance warning ECU.
- Measure the voltage according to the value(s) in the table below.
Standard voltage
2 CHECK HARNESS AND CONNECTOR
- Disconnect the connector from the park / neutral position switch.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
3 INSPECT PARK / NEUTRAL POSITION SWITCH
- Disconnect the park / neutral position switch connector P1.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
REPAIR OR REPLACE HARNESS OR CONNECTOR
Adjustment
1. ADJUST BUZZER VOLUME
Turn the knob on the clearance warning ECU to
adjust the volume.
...
Speed Signal Circuit
DESCRIPTION
The clearance warning ECU receives the vehicle speed signal from the
combination meter.
HINT:
A voltage of 12 V or 5 V is output from each ECU and then input to
the combin ...
Other materials:
Installation
HINT:
Install the RH side by the same procedures with LH side.
1. INSTALL FRONT SPEED SENSOR LH
(a) Install the speed sensor front LH with the bolt.
Torque: 8.0 N*m (82 kgf*cm, 71 in.*lbf)
NOTICE:
Keep the tip of the front speed sensor LH.
(b) Install the sensor harness clamps with th ...
Throttle Actuator Control System
DTC P2111 Throttle Actuator Control System - Stuck Open
DTC P2112 Throttle Actuator Control System - Stuck
Closed
DESCRIPTION
The throttle actuator is operated by the ECM, and opens and closes the
throttle valve using the gears.
The opening angle of the throttle valve is detected by the Thr ...
Initialization
1. ZERO POINT CALIBRATION
NOTICE:
Make sure that the front passenger seat is not
occupied before performing the operation.
HINT:
Perform the zero point calibration and sensitivity check if
any of the following conditions occur.
The occupant classification ECU is replaced.
A ...
