Toyota Sienna Service Manual: Indicator Circuit
DESCRIPTION
The indicator displays the location of the obstacle and the approximate distance between the vehicle and the obstacle either by blinking or turning on.
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 INSPECT INDICATOR
- Remove the integration control & panel assembly with the connectors being connected.
- Using a service wire, ground each terminal of the integration control & panel assembly connector.
- Turn the ignition switch ON.
- Check that each LED comes on.
Result
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
3 INSPECT PRINTED WIRE INTEGRATION BOARD SUB-ASSEMBLY
- Check 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
4 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. 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 ...
Horn
...
Other materials:
Safety information
for children
Observe the following precautions when children are in the vehicle.
Use a child restraint system appropriate for the child, until the
child becomes large enough to properly wear the vehicle’s seat
belt.
It is recommended that children sit in the rear seats to avoid
accidental
contact ...
Reassembly
1. INSTALL REAR DRIVE SHAFT OUTBOARD JOINT BOOT
HINT:
Before install the boot, wrap the spline of the outboard
joint shaft with vinyl tape to prevent the boot from
bearing damaged.
(a) Install new outboard joint boot, 2 outboard joint boot
clamps, 2 inboard joint boot clamps and inboard
j ...
Installation
1. INSTALL IGNITION SWITCH ASSEMBLY
(a) Install the ignition switch with the 2 screws.
(b) Install the ignition switch connector.
2. INSTALL STEERING COLUMN COVER LOWER
(a) Attach the 4 claws to install the steering column
cover lower.
(b) Insert the key into the ignition key cylinde ...
