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Home >> Lexus >> 2004 >> GX 470 V8-4.7L (2UZ-FE) >> Repair and Diagnosis >> Restraints and Safety Systems >> Repairs and Inspections Required After a Collision >> Service and Repair >> Air Bag Systems

Air Bag Systems

ON-VEHICLE INSPECTION





1. HORN BUTTON ASSEMBLY (VEHICLE NOT INVOLVED IN COLLISION)
(a) Perform a diagnostic system check. (See Diagnostic Strategies.)
(b) With the horn button assembly installed on the vehicle, perform a visual check. If there are any defects as mentioned below, replace the horn button assembly with a new one:
Cuts, minute cracks or marked discoloration on the horn button assembly top surface or in the grooved portion.

2. HORN BUTTON ASSEMBLY (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS NOT DEPLOYED)
(a) Perform a diagnostic system check (See Diagnostic Strategies).





(b) With the horn button assembly removed from the vehicle, perform a visual check. If there are any defects as mentioned below, replace the horn button assembly or steering wheel assembly with a new one:
- Cuts, minute cracks or marked discoloration on the horn button assembly top surface or in the grooved portion
- Cracks or other damage to the connectors
- Deformation of the steering wheel assembly





- Deformation of the horn button contact plate of the horn button assembly





- There should be no interference between the horn button assembly and steering wheel assembly, and the clearance should be uniform all the way around when the new horn button assembly is installed on the steering wheel assembly.

CAUTION: For removal and installation procedures of the horn button assembly, be sure to follow the correct procedure.





3. INSTR PNL PASS L/DOOR AIRBAG ASSEMBLY (VEHICLE NOT INVOLVED IN COLLISION)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
(b) With the instr pnl pass l/door airbag assembly installed on the vehicle, perform a visual check. If there are any defects as mentioned below, replace the instrument panel with a new one:
Cuts, minute cracks or marked discoloration on the instrument panel around the instr pnl pass l/door airbag assembly.








4. INSTR PNL PASS L/DOOR AIRBAG ASSEMBLY (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS NOT DEPLOYED)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
(b) With the instr pnl pass l/door airbag assembly removed from the vehicle, perform a visual check. If there are any defects as mentioned below, replace the instr pnl pass l/door airbag assembly, instrument panel or instrument panel reinforcement with a new one:
- Cuts, minute cracks or marked discoloration on the instr pnl pass l/door airbag assembly
- Cracks or other damage to the wire harness or connector
- Deformation or cracks on the instrument panel or instrument panel reinforcement

CAUTION: For removal and installation procedures of the instr pnl pass l/door airbag assembly, be sure to follow the correct procedure.





5. FRONT SEAT AIRBAG ASSEMBLY (VEHICLE NOT INVOLVED IN COLLISION)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
(b) With the front seat airbag assembly installed on the vehicle, perform a visual check. If there are any defects as mentioned below, replace the front seat back assembly with a new one:
Cuts, minute cracks or marked discoloration on the front seat back assembly around the front seat airbag assembly.





6. FRONT SEAT AIRBAG ASSEMBLY (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS NOT DEPLOYED)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
(b) With the front seat airbag assembly removed from the vehicle, perform a visual check. If there are any defects as mentioned below, replace the front seat airbag assembly with a new one:
- Cuts, minute cracks or marked discoloration on the front seat airbag assembly
- Cracks or other damage to the wire harness or connector

CAUTION: For removal and installation procedures of the front seat airbag assembly, be sure to follow the correct procedure.





7. CURTAIN SHIELD AIRBAG ASSEMBLY (VEHICLE NOT INVOLVED IN COLLISION)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
(b) With the curtain shield airbag assembly installed on the vehicle, perform a visual check. If there are any defects as mentioned below, replace the front pillar garnish or roof headlining assembly with a new one:
Cuts, minute cracks or marked discoloration on the front pillar garnish and roof headlining assembly around the curtain shield airbag assembly.





8. CURTAIN SHIELD AIRBAG ASSEMBLY (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS NOT DEPLOYED)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
(b) With the curtain shield airbag assembly removed from the vehicle, perform a visual check. If there are any defects as mentioned below, replace the curtain shield airbag assembly with a new one:
- Cuts, minute cracks or marked discoloration on the curtain shield airbag assembly
- Cracks or other damage to the connector

CAUTION: For removal and installation procedures of the curtain shield airbag assembly, be sure to follow the correct procedure.

9. AIRBAG SENSOR ASSEMBLY CENTER (VEHICLE NOT INVOLVED IN COLLISION)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
10. AIRBAG SENSOR ASSEMBLY CENTER (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS NOT DEPLOYED)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
11. AIRBAG SENSOR ASSEMBLY CENTER (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS DEPLOYED)
(a) Replace the airbag sensor assembly center.

HINT: The airbag sensor assembly center should be replaced after any of the airbags has deployed, as it has been subjected to the impact.

12. AIRBAG SENSOR FRONT (VEHICLE NOT INVOLVED IN COLLISION)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
13. AIRBAG SENSOR FRONT (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS NOT DEPLOYED)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
(b) When the front bumper of the vehicle or its periphery is damaged, check if there is any damage to the airbag sensor front. If there are any defects as mentioned below, replace the airbag sensor front with a new one:
- Cracks, dents or chips in the case
- Cracks or other damage to the connector
- Peeling off of the label or damage to the serial number

14. AIRBAG SENSOR FRONT (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS DEPLOYED)
(a) Replace the airbag sensor front.

HINT: The airbag sensor front on the impacted side should be replaced after the horn button assembly or front passenger airbag assembly has deployed.

15. SIDE AIRBAG SENSOR ASSEMBLY (VEHICLE NOT INVOLVED IN COLLISION)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
16. SIDE AIRBAG SENSOR ASSEMBLY (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS NOT DEPLOYED)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
(b) When the center pillar of the vehicle or its periphery is damaged, check if there is any damage to the side airbag sensor assembly. If there are any defects as mentioned below, replace the side airbag sensor assembly with a new one:
- Cracks, dents or chips in the case
- Cracks or other damage to the connector
- Peeling off of the label or damage to the serial number

17. SIDE AIRBAG SENSOR ASSEMBLY (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS DEPLOYED)
(a) Replace the side airbag sensor assembly.

HINT: The side airbag sensor assembly on the impacted side should be replaced after the front seat airbag assembly and curtain shield airbag assembly have deployed.

18. AIRBAG SENSOR REAR (VEHICLE NOT INVOLVED IN COLLISION)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
19. AIRBAG SENSOR REAR (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS NOT DEPLOYED)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
(b) When the quarter panel of the vehicle or its periphery is damaged, check if there is any damage to the airbag sensor rear. If there are any defects as mentioned below, replace the airbag sensor rear with a new one:
- Cracks, dents or chips in the case
- Cracks or other damage to the connector
- Peeling off of the label or damage to the serial number

20. AIRBAG SENSOR REAR (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS DEPLOYED)
(a) Replace the airbag sensor rear.

HINT: The airbag sensor rear on the impacted side should be replaced after the curtain shield airbag assembly has deployed.

21. SEAT POSITION AIRBAG SENSOR (VEHICLE NOT INVOLVED IN COLLISION)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
22. SEAT POSITION AIRBAG SENSOR (VEHICLE INVOLVED IN COLLISION)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
(b) Even if the airbag was not deployed, perform a visual check for damage to the seat position airbag sensor including the following:
- Cracks, dents or chips in the case
- Cracks or other damage to the connector

23. WIRE HARNESS AND CONNECTOR (VEHICLE NOT INVOLVED IN COLLISION)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
24. WIRE HARNESS AND CONNECTOR (VEHICLE INVOLVED IN COLLISION)
(a) Perform a diagnostic system check (See Diagnostic Strategies).
(b) Check for breaks in all wires of the SRS wire harness and exposed conductors.
(c) Check to see if the SRS wire harness connectors are cracked or chipped.

HINT: The SRS wire harness is integrated with the engine room main wire, instrument panel wire, floor wire and floor wire No.2.
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