Toyota Sienna Service Manual: Operation check
1. REMOVE CHECK FUNCTION
- Check that the key reminder warning buzzer
sounds.
- With the driver side door closed, insert the key
into the ignition key cylinder and then turn the
key to LOCK or ACC.
- Check that the buzzer sounds intermittently if
the driver side door is opened.
- Check that the key reminder warning buzzer stops.
- Check that the buzzer stops sounding if any of
the following operations is performed while the
buzzer is sounding:
- Close the driver side door (front door
courtesy light switch is off).
- Turn the ignition switch ON.
- Pull out the key from the ignition key cylinder.
Problem symptoms table
KEY REMINDER WARNING SYSTEM

HINT:
Use these procedures to troubleshoot the key reminder
warning system.
The intelligent tester should be used in steps 3 and 5.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PRO ...
1. CHECK DRIVER SIDE J/B ASSEMBLY (MULTIPLEX NETWORK BODY ECU)
Disconnect the B6, 1C, 1K and 1L J/B connectors.
Measure the voltage and resistance according to
the value(s) in th ...
Other materials:
Removal
HINT:
Use the same procedures for the RH side and LH side.
The procedures listed below are for the LH side.
1. PRECAUTION
CAUTION:
Be sure to read "PRECAUTION" thoroughly before servicing.
2. DISCONNECT CABLE FROM NEGATIVE BATTERY
TERMINAL
CAUTION:
Wait for 90 se ...
Radiator
COMPONENTS
...
Low pitched horn
COMPONENTS
REMOVAL
1. REMOVE FRONT BUMPER COVER
ET-3
2. REMOVE LOW PITCHED HORN
Disconnect the connector.
Remove the bolt and horn.
INSPECTION
1. INSPECT LOW PITCHED HORN
Apply battery voltage and check operation of the
horn, as shown in the table.
Stan ...