Toyota Sienna Service Manual: Transmission Range Sensor Circuit Malfunction (PRNDL Input)
DESCRIPTION
The park/neutral position switch detects the shift lever position and sends signals to the ECM.
HINT:
After confirming DTC P0705, use the intelligent tester to confirm the PNP switch signal in the ALL menu (to reach the ALL menu: DIAGNOSIS / ENHANCED OBD II / DATA LIST / ALL).
WIRING DIAGRAM
Refer to DTC P0705 for 2WD model (See page AX-40) or 4WD model (See page AX-40).
INSPECTION PROCEDURE
Refer to DTC P0705 for 2WD model (See page AX-41) or 4WD model (See page AX-41).
HINT:
Read freeze frame data using the intelligent tester or OBD II scan tool. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was LEAN or RICH, and other data from the time the malfunction occurred.
Actuator Supply Voltage Circuit / Open
DESCRIPTION
The ECM monitors the output voltage to the throttle actuator. This self-check
ensures that the ECM is
functioning properly. The output voltage is usually 0 V when the ignition swit ...
Throttle Actuator Control Motor Circuit
DESCRIPTION
The throttle actuator is operated by the ECM and opens and closes the
throttle valve using gears.
The opening angle of the throttle valve is detected by the Throttle Position
( ...
Other materials:
Disassembly
1. SEPARATE REAR DRIVE SHAFT INBOARD JOINT BOOT CLAMP
(a) Using a screwdriver, remove the 2 rear drive shaft
inboard joint boot clamps as shown in the
illustration.
2. SEPARATE REAR DRIVE SHAFT INBOARD JOINT
BOOT
(a) Separate the rear drive shaft inboard joint boot from
the inboard joint ...
Terminals of ECU
1. CHECK OUTER MIRROR CONTROL ECU LH
Disconnect the O9 and O10 connectors.
Measure the voltage and resistance according to
the value(s) in the table below.
Voltage
Resistance
If the result is not as specified, there may be a
malfunction on the wire harness side.
Recon ...
Adjustment procedure
Manual seat
Seat position adjustment lever
Seatback angle adjustment lever
Vertical height adjustment lever (driver’s side only)
Lumbar support adjustment switch (driver’s side only)*
*: If equipped
Power seat
Seat position adjustment switch
Seatback angle a ...
