Toyota Sienna Service Manual: Driver Side Seat Belt Warning Light does not Operate
DESCRIPTION
When turning the ignition switch to the ON position, the combination meter assembly communicates with the supplemental restraint system by the multiplex communication system. Unless the driver side seat belt is fastened, the combination meter assembly will turn on the seat belt warning light for driver side. If the driver side seat belt is fastened, then the combination meter assembly will turn off the driver side seat belt warning light.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK MULTIPLEX COMMUNICATION SYSTEM
- Check if the MULTIPLEX communication DTC is output
Result
2 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position.
- Enter the following menus: DIAGNOSIS / OBD/MOBD / METER / ACTIVE TEST.
- Check the operation by referring to the value(s) in the table below.
METER:
OK: Warning light condition (ON/OFF) can be switched by "ACTIVE TEST".
3 CHECK DTC
- Check if DTC B0126 is output
Result
REPLACE CENTER AIR BAG SENSOR ASSEMBLY
Engine Coolant Temperature Receiver Gauge Malfunction
DESCRIPTION
The meter CPU receives engine coolant temperature signals from the ECM via
the multiplex
communication lines. The meter CPU displays engine coolant temperature that is
calculated bas ...
Operating Light Control Rheostat does not Change Light Brightness
DESCRIPTION
The meter CPU receives signals for adjusting illumination on the meter from
this circuit. The meter CPU
detects the illumination level selected by the user according to the position of ...
Other materials:
Installation
1. Connect inlet sub-assembly
(a) Connect the inlet hose to the radiator.
(b) Install the inlet sub-assembly to the radiator with the
bolt.
Torque: 7.1 N*m (72 kgf*cm, 63 in.*lbf)V
2. Install no. 2 Radiator support
(A) install the no. 2 Radiator support to the radiator with
the 2 ...
Check and replace ecu
NOTICE: • The connector should not be disconnected from
the ECU. Perform the inspection from the
backside of the connector on the wire harness
side.
• When no measuring condition is specified,
perform the inspection with the engine stopped
and the ignition switch on.
• Che ...
Throttle / Pedal Position Sensor / Switch "A/B"
Circuit
DTC P0120 Throttle / Pedal Position Sensor / Switch "A"
Circuit
DTC P0122 Throttle / Pedal Position Sensor / Switch "A"
Circuit Low Input
DTC P0123 Throttle / Pedal Position Sensor / Switch "A"
Circuit High Input
DTC P0220 Throttle / Pedal Position Sensor / Switch ...
