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:
Transmitter battery
REPLACEMENT
1. REMOVE TRANSMITTER BATTERY
NOTICE:
Special caution should be taken for handling each
component as they are precision electronic
components.
Using a coin or the equivalent, pry out the
transmitter case.
NOTICE:
Do not forcibly pry out the case.
Re ...
Installation
1. INSTALL TIMING CHAIN CASE OIL SEAL
(a) Using SST, tap in a new oil seal until its surface is
flush with the timing chain case edge.
SST 09223-22010, 09506-35010
NOTICE:
Keep the lip free from foreign matter.
Do not tap on the oil seal at an angle.
Make sure that the oil ...
Terminals of ecm
Sfi system
Hint:
The standard normal voltage between each pair of the
ECM terminals is shown in the table below. The
appropriate conditions for checking each pair of the
terminals are also indicated.
The check results should be compared with the standard
normal voltage for that pair of te ...
