Toyota Sienna Service Manual: How to proceed with troubleshooting
HINT:
- Use these procedures to troubleshoot the power door lock control system.
- The intelligent tester should be used in steps 3 and 5.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
- Interview the customer to confirm the trouble
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
Parts location
...
Operation check
1. DOOR LOCK FAIL-SAFE
When a malfunction in the door control switch
(manual switch, interlocked with key operation) has
been detected, door lock/unlock operation becomes
disabled.
...
Other materials:
Engine
ON-VEHICLE INSPECTION
1. INSPECT ENGINE COOLANT
(a) Inspect the engine coolant (See page CO-1).
2. INSPECT ENGINE OIL
(a) Inspect the engine oil (See page LU-1).
3. INSPECT BATTERY
(a) Inspect the battery (See page CH-5).
4. INSPECT AIR CLEANER FILTER ELEMENT SUBASSEMBLY
(a) Remove the air c ...
Display Signal Circuit between Video Terminal and Television Display
DESCRIPTION
This is the display signal circuit from the video terminal to the television
display assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - VIDEO
TERMINAL)
Disconnect the connectors from the video terminal and
tele ...
ABS Warning Light does not Come ON
WIRING DIAGRAM
Refer to ABS Warning Light Remains ON (See page BC-141).
INSPECTION PROCEDURE
1 CHECK ABS WARNING LIGHT
(a) Disconnect the skid control ECU connector.
(b) Turn the ignition switch to the ON position.
(c) Check that the ABS warning light comes on.
OK:
ABS warning light come ...
