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:
Power easy access system
The seat is automatically adjusted to allow the driver to enter and exit
the vehicle easily.
When all of the following have
been performed, the driver’s seat
is automatically adjusted to a
position that allows driver to enter
and exit the vehicle easily.
The shift lever has been sh ...
Fuel Pump Control Circuit
DESCRIPTION
The FUEL PUMP relay switches the fuel pump speed according to the engine
conditions. The fuel pump
operates when the ECM receives the starter-operating signal (STA) and
crankshaft-rotating signal (NE).
The FUEL PUMP relay is turned ON while the engine is idling or operating at l ...
Short in Side Squib RH Circuit
DTC B0110/43 Short in Side Squib RH Circuit
DESCRIPTION
The side squib RH circuit consists of the center airbag sensor assembly and
the front seat side airbag
assembly RH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0110/43 is recorded when a short cir ...