Toyota Sienna Service Manual: SRS Warning Light does not Come ON
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK BATTERY
- Measure the voltage of the battery.
Standard voltage: 11 to 14 V
2 CHECK CONNECTORS
- Turn the ignition switch to the LOCK position.
- Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
- Check that the connectors are properly connected to the center airbag sensor assembly and the combination meter assembly.
OK: The connectors are properly connected.
3 CHECK WIRE HARNESS (SOURCE VOLTAGE OF COMBINATION METER ASSEMBLY)
- Turn the ignition switch to the LOCK position.
- Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
- Disconnect the connector from the combination meter assembly.
- Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
- Turn the ignition switch to the ON position.
- Measure the voltage according to the value(s) in the table below.
Standard voltage
- Turn the ignition switch to the LOCK position.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
4 CHECK SRS WARNING LIGHT
- Turn the ignition switch to the LOCK position.
- Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
- Connect the connector to the combination meter assembly.
- Disconnect the connector from the center airbag sensor assembly.
- Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
- Turn the ignition switch to the ON position.
- Check the SRS warning light condition.
OK: After the primary check period, SRS warning light goes off for approximately 10 seconds, and remains on.
HINT: The primary check period is approximately 6 seconds after the ignition switch is turned to the ON position.
REPLACE CENTER AIRBAG SENSOR ASSEMBLY
SRS Warning Light Remains ON
DESCRIPTION
The SRS warning light is located on the combination meter assembly.
When the SRS is normal, the SRS warning light comes on for approximately 6
seconds after the ignition
switch is t ...
Diagnosis Circuit
DESCRIPTION
DTC output mode is set by connecting terminals TC and CG of the DLC3.
DTCs are displayed by blinking the SRS warning light.
HINT:
When each warning light stays blinking, a g ...
Other materials:
Emergency flashers
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in the road due to a breakdown, etc.
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch
once again.
Emergency flashers
If the emergency flashers are used f ...
Initialization
1. RESET
When the control motor and clutch is replaced:
The power slide door ECU cannot receive a switch
signal from the control motor and clutch. This may
cause the power slide door system to enter fail-safe
mode and DTC (B2224 (LH) or B2223 (RH)) to set,
and also make the syste ...
Diagnostic trouble code chart
HINT:
If a trouble code is displayed during the DTC check, check
the circuit indicated by the DTC. For details of each code,
turn to the page for the respective DTC Code. in the DTC
chart.
Inspect the fuse and relay before investigating the trouble
areas as shown in the table below.
...
