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 turned from the LOCK position to ON position, and then goes off automatically.
If there is a malfunction in the SRS, the SRS warning light comes on to inform the driver of a problem.
When terminals TC and CG of the DLC3 are connected, the DTC is displayed by blinking of the SRS warning light.
The SRS is equipped with a voltage-increase circuit (DC-DC converter) in the center airbag sensor assembly in case the source voltage drops.
When the battery voltage drops, the voltage-increase circuit (DC-DC converter) functions to increase the voltage of the SRS to normal voltage.
A malfunction in this circuit is not recorded in the center airbag sensor assembly. The SRS warning light automatically goes off when the source voltage returns to normal.
The signal to illuminate the SRS warning light is transmitted from the center airbag sensor assembly to the combination meter assembly through the multiplex communication system.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK MULTIPLEX COMMUNICATION SYSTEM
HINT: The center airbag sensor assembly of this system is connected to the multiplex communication system.
Therefore, before starting troubleshooting, make sure to check that there is no trouble in the multiplex communication system.
OK: The Multiplex communication system DTC is not output.
REPAIR CIRCUITS INDICATED BY OUTPUT DTCS
2 CHECK BATTERY
Standard voltage: 11 to 14 V
CHECK AND REPLACE BATTERY OR CHARGING SYSTEM
3 CHECK CONNECTORS
OK: The connectors are properly connected
CONNECT CONNECTORS
4 CHECK WIRE HARNESS (SOURCE VOLTAGE OF CENTER AIRBAG SENSOR ASSEMBLY)
Standard voltage
Standard resistance
REPAIR OR REPLACE WIRE HARNESS
5 CHECK WIRE HARNESS (SOURCE VOLTAGE OF COMBINATION METER ASSEMBLY)
Standard voltage
Standard resistance
REPAIR OR REPLACE WIRE HARNESS
6 CHECK SRS WARNING LIGHT
OK: After the primary check period, SRS warning light goes off for approximately 10 seconds, and remains on. HINT: The primary check period shows approximately 6 seconds after the ignition switch is turned to the ON position.
REPLACE COMBINATION METER ASSEMBLY
REPLACE CENTER AIRBAG SENSOR ASSEMBLY
Short to GND in Front Pretensioner Squib LH
Circuit
DTC B0137/71 Short to GND in Front Pretensioner Squib LH
Circuit
DESCRIPTION
The front pretensioner squib LH circuit consists of the center airbag sensor
assembly and the front seat
outer belt assembly LH.
This circuit instructs the SRS to deploy when deployment conditions are met.
DTC B ...
On-vehicle inspection
1. CONNECT INTELLIGENT TESTER
(a) Connect the intelligent tester to the DLC3.
(b) Start the engine and run at idle.
(c) Select the ACTIVE TEST mode on the intelligent
tester.
HINT:
Please refer to the intelligent tester operator's
manual for further details.
2. INSPECT ACTUATOR MOTOR ...
Installation
1. INSTALL COMBINATION METER ASSEMBLY
Connect the connectors.
Install the combination meter assembly with the 4
screws.
2. INSTALL INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY
Install the instrument cluster finish panel subassembly
with the 4 clips.
3. C ...