Toyota Sienna Service Manual: How to proceed with troubleshooting
HINT:
- Troubleshooting of the wireless door lock control system is
based on the premise that the power door lock system, the
power slide door system, the power back door system and
the power window system are operating normally.
Therefore, before troubleshooting the wireless door lock control system, first make certain that these systems are operating normally.
- Troubleshoot in accordance with the procedures on the following pages.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
- Interview the customer to confirm the trouble
3 DTC CHECK
- Check for DTC and note any codes that are output.
- Delete the DTC.
- Recheck for DTC. Try to prompt the DTC by simulating the original activity that the DTC suggests.
- If the DTC does not reoccur, proceed to A.
- If the DTC reoccur, proceed to B.
4 PROBLEM SYMPTOMS TABLE
- When problem is not listed on problem symptoms table, proceed to A.
- When problem is listed on problem symptoms table, proceed to B.
5 PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM
- Terminals of ECU
- Operation check
6 ADJUST, REPAIR OR REPLACE
7 CONFIRMATION TEST
END
Parts location
...
Operation check
1. NOTICE WHEN CHECKING THE FOLLOWING
Power door lock/unlock function:
The wireless door lock control function operates
only when the following 3 conditions are met:
No key is inse ...
Other materials:
Removal
1. Remove front wheel
2. Remove front wiper arm head cap
Hint:
(see page ww-3)
3. Remove fr wiper arm rh
HINT:
(See page WW-3)
4. Remove fr wiper arm lh
HINT:
(See page WW-3)
5. Remove cowl top ventilator louver subassembly
Hint:
(see page ww-3)
6. Remove windshield wiper motor & li ...
If the engine will not
start
If the engine will not start even though correct starting procedures
are being followed (, 228), consider each of the following
points:
The engine will not start even though the starter motor operates
normally.
One of the following may be the cause of the problem:
There may not be sufficien ...
Back Sonar Sensor RH Circuit
DESCRIPTION
An ultrasonic sensor consists of a sensor portion that transmits and receives
ultrasonic waves and a preamplifier
that amplifies them. The ultrasonic sensor outputs the ultrasonic waves and
sends the received
signals to the clearance warning ECU.
WIRING DIAGRAM
INSPECTION PR ...
