Trouble In Passenger Airbag ON/OFF Indicator
SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM: Trouble in Passenger Airbag ON/OFF Indicator
- Trouble in Passenger Airbag ON/OFF Indicator
DESCRIPTION
The occupant classification system detects the front passenger seat condition. It then displays the front passenger airbag, front passenger side knee airbag and front seat belt pretensioner RH condition (activated/not activated) using the passenger airbag ON/OFF indicator.
HINT
Approximately 6 seconds after the power switch is turned on (IG), the passenger airbag ON/OFF indicator will indicate ON/OFF depending on the conditions listed below.
INSPECTION PROCEDURE
NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work Service Precautions.
PROCEDURE
1. CHECK SRS WARNING LIGHT
(a) Turn the power switch on (IG), and check the SRS warning light condition.
HINT
If passenger airbag ON/OFF indicator trouble occurs, the SRS warning light dose not illuminate. If the light comes on, a DTC is stored. Troubleshoot for the DTC.
OK:
After the primary check period, the SRS warning light goes off.
Result:
HINT
The primary check is performed for approximately 6 seconds after the power switch is turned on (IG).
B -- GO TO AIRBAG SYSTEM Separate Type Yaw Rate Sensor
C -- GO TO AIRBAG SYSTEM Built-in Type Yaw Rate Sensor
A -- Continue to next step.
2. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK
(a) Using the Techstream, perform Zero Point Calibration and Sensitivity Check Programming and Relearning.
OK:
"Zero Point Calibration is complete." and "Sensitivity Check is complete." are displayed.
NG -- RETIGHTEN FRONT SEAT ASSEMBLY RH BOLT
OK -- END
3. RETIGHTEN FRONT SEAT ASSEMBLY RH BOLT
(a) Loosen the 4 installation bolts of the front seat assembly RH.
(b) Tighten the 4 installation bolts of the front seat assembly RH to the specified torque Installation for Manual Seat, Installation for Power Seat).
NEXT -- Continue to next step.
4. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK
(a) Using the Techstream, perform Zero Point Calibration and Sensitivity Check Programming and Relearning.
OK:
"Zero Point Calibration is complete." and "Sensitivity Check is complete." are displayed.
NG -- READ VALUE USING TECHSTREAM
OK -- END
5. READ VALUE USING TECHSTREAM
(a) Using the Techstream, read Data List Scan Tool Testing and Procedures.
(1) Read the display when the passenger side buckle switch is operated.
Occupant Detection
OK:
The Techstream display changes correctly in accordance with the operation of the buckle switch.
NG -- CHECK CONNECTORS
OK -- Continue to next step.
6. CHECK CONNECTORS
(a) Turn the power switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal.
(c) Disconnect the connectors from the occupant detection ECU and 2 rear occupant classification sensors.
(d) Check that the terminals of the connectors are not damaged.
OK:
The terminals are not deformed or damaged.
NG -- REPLACE FRONT SEAT WIRE RH
OK -- Continue to next step.
7. REPLACE OCCUPANT DETECTION ECU
(a) Connect the connectors to the 2 rear occupant classification sensors.
(b) Replace the occupant detection ECU Removal.
(c) Connect the cable to the negative (-) auxiliary battery terminal.
NEXT -- Continue to next step.
8. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK
(a) Using the Techstream, perform Zero Point Calibration and Sensitivity Check Programming and Relearning.
NEXT -- END
9. CHECK CONNECTORS
(a) Turn the power switch off.
(b) Disconnect the cable from the negative (-) auxiliary battery terminal.
(c) Disconnect the connectors from the occupant detection ECU and front seat inner belt assembly RH.
(d) Check that the terminals of the connectors are not damaged.
OK:
The terminals are not deformed or damaged.
NG -- REPLACE FRONT SEAT WIRE RH
OK -- Continue to next step.
10. REPLACE FRONT SEAT INNER BELT ASSEMBLY RH
(a) Connect the connector to the occupant detection ECU.
(b) Replace the front seat inner belt assembly RH Removal.
(c) Connect the cable to the negative (-) auxiliary battery terminal.
NEXT -- Continue to next step.
11. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK
(a) Using the Techstream, perform Zero Point Calibration perform Zero Point Calibration and Sensitivity Check Programming and Relearning.
NEXT -- END