Toyota Sienna Service Manual: Terminals of ECM
1. CHECK ECM
Problem symptoms table
HINT:
Use the table below to help determine the cause of the
problem symptom. The likely causes of the problem are
indicated in descending order. Check each suspected area
in order. Re ...
Diagnosis system
1. CHECK DLC3
The ECU uses the ISO 15765-4 for communication
protocol. The terminal arrangement of the DLC3
complies with SAE J1962 and matches the ISO
15765-4 format.
NOTICE: ...
Other materials:
Diagnosis system
1. CHECK DLC3
The ECU uses the ISO 15765-4 for communication
protocol. The terminal arrangement of the DLC3
complies with SAE J1962 and matches the ISO
15765-4 format.
NOTICE:
*: Before measuring the resistance, leave the
vehicle as is for at least 1 minute and do not
ope ...
Customize parameters
HINT:
The following items can be customized.
NOTICE:
After confirming whether the items requested by the
customer are applicable or not for customization,
perform customize operations.
Be sure to record the current settings before
customizing.
When troubleshooting, ...
Problem symptoms table
POWER WINDOW CONTROL SYSTEM (W/O JAM PROTECTION)
Symptom
Suspected Area
All power windows do not operate
PWR fuse
Power window relay (Marking: P/W)
Ignition switch
Power window regulator master switch
Power window regulator motor assembly
...
