Toyota Sienna Service Manual: Clearance Warning ECU Power Source Circuit
DESCRIPTION
This circuit provides power to the clearance warning ECU.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - AIR CONDITIONER AMPLIFIER)
- Disconnect the connectors from the clearance warning ECU C9 and air conditioner amplifier connector A10 or A11.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
2 CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - BODY GROUND)
- Measure the resistance according to the value(s) in the table below.
Standard resistance
3 INSPECT CLEARANCE WARNING ECU
- Disconnect the clearance warning ECU connector.
- Turn the ignition switch ON.
- Turn the clearance sonar main switch ON.
- Measure the voltage between terminals +B and E of the ECU.
Standard voltage: 10 to 14 V
Result
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
4 INSPECT PRINTED WIRE INTEGRATION BOARD SUB-ASSEMBLY
- Check that the malfunction disappears when a known good printed wire integration board sub-assembly is installed.
OK: Malfunction disappears
REPLACE PRINTED WIRE INTEGRATION BOARD SUB-ASSEMBLY
5 INSPECT INTEGRATION PANEL SUB-ASSEMBLY
- Check that the malfunction disappears when a known good integration panel sub-assembly is installed.
OK: Malfunction disappears.
REPLACE INTEGRATION PANEL SUB-ASSEMBLY
No. 1 Clearance Warning Buzzer Circuit
DESCRIPTION
The clearance warning ECU receives the ultrasonic sensor signal to sound the
front warning buzzer.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FRONT BUZZER
Remove the c ...
No. 2 Clearance Warning Buzzer Circuit
DESCRIPTION
The clearance warning ECU receives the ultrasonic sensor signal to sound the
rear warning buzzer.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (CLEARANCE WAR ...
Other materials:
Trouble in Passenger Airbag ON / OFF Indicator
DESCRIPTION
The occupant classification system detects the front passenger seat
condition. It then informs a
passenger of the front passenger airbag, the front seat side airbag RH and front
seat belt pretensioner
RH condition (activated/not activated) by the passenger airbag ON/OFF indicator. ...
Calculation formula for your vehicle
Cargo capacity
Total load capacity (vehicle capacity weight)
When 2 people with the combined weight of A lb. (kg) are riding in
your vehicle, which has a total load capacity (vehicle capacity weight)
of B lb. (kg), the available amount of cargo and luggage load capacity
will be C lb. ...
Installation
1. INSTALL POWER POINT SOCKET ASSEMBLY
Engage the 2 claws to install the power point socket
assembly.
2. INSTALL INSTRUMENT CLUSTER CENTER LOWER
FINISH PANEL SUB-ASSEMBLY
3. INSTALL POSITION INDICATOR HOUSING
ASSEMBLY
4. INSTALL SHIFT LEVER KNOB SUB-ASSEMBLY
5. INSTALL INSTRU ...
