Toyota Sienna Service Manual: How to proceed with troubleshooting
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 PROBLEM ANALYSIS
3 INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)
- Use the intelligent tester to check if the Multiplex Communication System (MPX) is functioning normally.
Result
4 PROBLEM SYMPTOMS TABLE
Result
5 OVERALL ANALYSIS AND TROUBLESHOOTING
- Terminals of ECU.
- DATA LIST/ACTIVE TEST
6 REPAIR OR REPLACE
7 CONFIRMATION TEST
END
Key reminder warning system
Parts location
System description
1. KEY REMINDER WARNING SYSTEM DESCRIPTION
When the driver side door is opened with the
ignition key in the ACC or LOCK position, this
system caus ...
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
...
Other materials:
Engine
GENERAL MAINTENANCE
HINT:
Inspect these items when the engine is cold.
1. INSPECT DRIVE BELT
HINT:
(See page EM-6)
2. REPLACE SPARK PLUGS
HINT:
(See page IG-8)
3. INSPECT AIR FILTER
(a) Remove the air filter.
(b) Visually check that the air filter is not excessively
damaged or oily ...
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 ...
Vehicle exterior
Items
Check points
Doors
Do the doors operate smoothly?
Engine hood
Does the engine hood lock system work
properly?
Fluid leaks
There should not be any signs of fluid
leakage after the vehicle ha ...
