Toyota Sienna Service Manual: 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, but then comes on. | SRS Warning Light Remains ON |
| When the ignition switch is turned to the ON position, the SRS warning light sometimes remains on even after approximately 6 seconds. | SRS Warning Light Remains ON |
| The SRS warning light always comes on even when no DTC is output. | SRS Warning Light Remains ON |
| When the ignition switch is turned to the ON position, the SRS warning light does not come on. | SRS Warning Light does not Come ON |
| Although the SRS warning light operates normally, a DTC or a normal system code is not displayed. | Diagnosis Circuit |
| Although terminals TC and CG are not connected, a DTC or normal system code is displayed. | Diagnosis Circuit |
How to proceed with
troubleshooting
HINT:
*: Use the intelligent tester.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS
Confirm problem symptoms
3 CHECK MULTIPLEX COMMUNICATION SYSTEM*
Check if the multiplex com ...
Terminals of ECU
1. CENTER AIRBAG SENSOR ASSEMBLY (w/ Side
Airbag)
2. CENTER AIRBAG SENSOR ASSEMBLY (w/o Side
Airbag)
...
Other materials:
Fuel pump resistor
Components
REMOVAL
1. REMOVE FUEL PUMP RESISTOR
(a) Disconnect the connector.
(b) Remove the nut and fuel pump resistor.
INSPECTION
1. INSPECT FUEL PUMP RESISTOR
(a) Inspect fuel pump resistor.
(1) Using an ohmmeter, measure the resistance
between the terminals.
Standard resi ...
Half Connection in Center Airbag Sensor
Assembly Connectors
DTC B1135/24 Half Connection in Center Airbag Sensor
Assembly Connectors
DESCRIPTION
The center airbag sensor assembly connector has a mechanism that electrically
detects half connection.
The center airbag sensor assembly monitors the voltage applied to the
disconnection detection pins and ...
Vehicle lift and support locations
1. NOTICE ABOUT VEHICLE CONDITION WHEN
JACKING UP VEHICLE
(a) The vehicle must be unloaded before jacking up/
lifting up the vehicle. Never jack up/lift up a heavily
loaded vehicle.
(b) When removing heavy parts such as the engine and
transmission, the center of gravity of the vehicle
may s ...