Toyota Sienna Service Manual: Adjustment
1. ADJUST BUZZER VOLUME
- Turn the knob on the clearance warning ECU to adjust the volume.
- Park / Neutral Position Switch Circuit
- Speed Signal Circuit
- Back Sonar Sensor LH Circuit
- Back Sonar Sensor RH Circuit
- Front Clearance Sonar Sensor LH Circuit
- Front Clearance Sonar Sensor RH Circuit
- Rear Clearance Sonar Sensor LH Circuit
- Rear Clearance Sonar Sensor RH Circuit
- No. 1 Clearance Warning Buzzer Circuit
- Clearance Warning ECU Power Source Circuit
- No. 2 Clearance Warning Buzzer Circuit
- Indicator Circuit
Terminals of ECU
1. CLEARANCE WARNING ECU
*1: with Front Clearance Sonar
2. AIR CONDITIONER AMPLIFIER ASSEMBLY
*1: with Front Clearance Sonar
*2: Manual A/C
*3: Auto A/C
Reference: ...
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 E ...
Other materials:
Dinghy towing
Your vehicle is not designed to be dinghy towed (with 4 wheels
on the ground) behind a motor home.
NOTICETo avoid serious damage to your vehicle
Do not tow your vehicle with four wheels
on the ground.
To prevent causing serious damage to the transaxle and Active
Torque ...
Steering Angle Sensor Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Steering Angle Sensor
Communication Stop
Mode
"Steering angle sensor" is not displayed on the
"Communication Bus Check" screen of the
intelligent tester
Applies to &qu ...
Fuel Pump Primary Circuit
DTC P0230 Fuel Pump Primary Circuit
DESCRIPTION
This DTC is designed to detect a malfunction in the fuel pump
(FUEL PUMP) relay circuit. When the
system is normal, the battery voltage is applied to FPR terminal of the ECM
while the FUEL PUMP
relay is turned OFF. If the battery v ...
