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:
Disassembly
1. REMOVE FRONT SEAT SIDE TABLE LEG COVER (w/
Table)
Using a screwdriver, disengage the claws and
remove the seat side table leg cover.
HINT:
Tape the screwdriver tip before use.
2. REMOVE FRONT SEAT SIDE TABLE (w/ Table)
Remove the 4 nuts and seat side table.
Rem ...
Diagnostic trouble code chart
COMMUNICATION DIAGNOSIS:
DVD PLAYER:
CD PLAYER
IN-DASH CD CHANGER
...
Diagnosis system
DESCRIPTION
(a) When troubleshooting OBD II (On-Board
Diagnostics) vehicles, an intelligent tester
(complying with SAE J1987) must be connected to
the DLC3 (Data Link Connector 3) of the vehicle.
Various data in the vehicle's ECM (Engine Control
Module) can be then read.
(b) OBD II regu ...