Toyota Sienna Service Manual: Terminals of ECU
1. CENTER AIRBAG SENSOR ASSEMBLY (w/ Side Airbag)
2. CENTER AIRBAG SENSOR ASSEMBLY (w/o Side Airbag)
Problem symptoms table
HINT:
Proceed to the troubleshooting for each circuit in the table
below.
AIRBAG SYSTEM
Symptom
Suspected Area
The SRS warning light goes off after the primary
check, ...
Diagnosis system
1. CHECK DLC3
The ECU uses ISO 15765-4 for communication.
The terminal arrangement of the DLC3 complies
with SAE J1962 and matches the ISO 15765-4
format.
NOTICE:
*: Before mea ...
Other materials:
Wiper switch
COMPONENTS
REMOVAL
1. REMOVE STEERING COLUMN COVER
2. REMOVE WINDSHIELD WIPER SWITCH ASSEMBLY
Disconnect the connector.
Using a screwdriver, disengage the claw and pull
out the windshield wiper switch assembly.
NOTICE:
The claw will be broken if pressed hard.
HINT ...
Short in Front Passenger Side Squib 2nd Step
Circuit
DTC B1185/57 Short in Front Passenger Side Squib 2nd Step
Circuit
DESCRIPTION
The front passenger side squib 2nd step circuit consists of the center airbag
sensor assembly and the
front passenger airbag assembly.
The circuit instructs the SRS to deploy when deployment conditions are met.
...
Precaution
1. NOTES FOR CLEARANCE SONAR SYSTEM
Under the following conditions, the sensor of the
clearance sonar may not operate properly:
Foreign matter such as snow or mud gets on the
sensor (the detection function will return to
normal when the foreign matter is no longer
prese ...
