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Trouble In Passenger Airbag ON/OFF Indicator








SUPPLEMENTAL RESTRAINT SYSTEM: 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 informs a passenger of the front passenger airbag assembly and front seat side airbag assembly condition (activated/not activated) with the passenger airbag ON/OFF indicator.
HINT: Approximately 6 seconds after the ignition switch is turned on (IG), the passenger airbag ON/OFF indicator will be on/off depending on the conditions listed below.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK SRS WARNING LIGHT
(a) Turn the ignition switch on (IG), and check the SRS warning light condition.
HINT: If this trouble occurs, the SRS warning light is off. If the light is on, a DTC is output. Troubleshoot for the output DTC.

OK:
After the primary check period, the SRS warning light goes off.
HINT: The primary check is performed for approximately 6 seconds after the ignition switch is turned on (IG).

NG -- GO TO DTC CHART
OK -- Continue to next step.
2. PERFORM ZERO POINT CALIBRATION
(a) Turn the ignition switch off.
(b) Connect Techstream to the DLC3.
(c) Turn the ignition switch on (IG).
(d) Using Techstream, perform "zero point calibration" Programming and Relearning.
OK:
"Zero Point calibration is complete." is displayed.
NG -- RETIGHTEN FRONT SEAT ASSEMBLY RH BOLT
OK -- Continue to next step.
3. PERFORM SENSITIVITY CHECK
(a) Using Techstream, perform "sensitivity check" Programming and Relearning.
Standard:
27 to 33 kg (59.52 to 72.75 lb)
NG -- RETIGHTEN FRONT SEAT ASSEMBLY RH BOLT
OK -- END
4. RETIGHTEN FRONT SEAT ASSEMBLY RH BOLT
(a) Turn the ignition switch off.
(b) Loosen the 4 installation bolts of the front seat assembly RH.
(c) Tighten the 4 installation bolts of the front seat assembly RH to the specified torque.
Torque: 37 Nm (377 kgf-cm, 27 ft-lbf)
NEXT -- Continue to next step.
5. PERFORM ZERO POINT CALIBRATION
(a) Connect Techstream to the DLC3.
(b) Turn the ignition switch on (IG).
(c) Using Techstream, perform "zero point calibration" Programming and Relearning.
OK:
"Zero Point Calibration is complete." is displayed.
NG -- READ VALUE USING PASSENGER SIDE BUCKLE SWITCH
OK -- Continue to next step.
6. PERFORM SENSITIVITY CHECK
(a) Using Techstream, perform "sensitivity check" Programming and Relearning.
Standard:
27 to 33 kg (59.52 to 72.75 lb)
NG -- READ VALUE USING PASSENGER SIDE BUCKLE SWITCH
OK -- END
7. READ VALUE USING PASSENGER SIDE BUCKLE SWITCH
(a) Turn the ignition switch on (IG).
(b) Using Techstream, read the "Data List" Scan Tool Testing and Procedures.
(1) Read the display when the passenger side buckle switch is operated.

Occupant Detection:





OK:
Tester display changes correctly in accordance with the operation of the buckle switch.
NG -- CHECK CONNECTORS
OK -- Continue to next step.
8. CHECK CONNECTORS
(a) Turn the ignition switch off.
(b) Disconnect the negative (-) terminal cable from the battery.
(c) Disconnect the connectors from the occupant classification ECU and the 4 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.
9. REPLACE OCCUPANT CLASSIFICATION ECU
(a) Replace the occupant classification ECU Removal.
NEXT -- Continue to next step.
10. PERFORM ZERO POINT CALIBRATION
(a) Connect the negative (-) terminal cable to the battery.
(b) Connect Techstream to the DLC3.
(c) Turn the ignition switch on (IG).
(d) Using Techstream, perform "zero point calibration" Programming and Relearning.
OK:
"Zero Point Calibration is complete." is displayed.
NEXT -- Continue to next step.
11. PERFORM SENSITIVITY CHECK
(a) Using Techstream, perform "sensitivity check" Programming and Relearning.
Standard:
27 to 33 kg (59.52 to 72.75 lb)
NEXT -- END
12. CHECK CONNECTORS
(a) Turn the ignition switch off.
(b) Disconnect the negative (-) terminal cable from the battery.
(c) Disconnect the connectors from the occupant classification ECU and the 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.
13. REPLACE FRONT SEAT INNER BELT ASSEMBLY RH
(a) Replace the front seat inner belt assembly RH Removal.
NEXT -- Continue to next step.
14. PERFORM ZERO POINT CALIBRATION
(a) Connect the negative (-) terminal cable to the battery.
(b) Connect Techstream to the DLC3.
(c) Turn the ignition switch on (IG).
(d) Using Techstream, perform "zero point calibration" Programming and Relearning.
OK:
"Zero Point Calibration is complete." is displayed.
NEXT -- Continue to next step.
15. PERFORM SENSITIVITY CHECK
(a) Using Techstream, perform "sensitivity check" Programming and Relearning.
Standard:
27 to 33 kg (59.52 to 72.75 lb)
NEXT -- END
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