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SRC_SRS_AIRBAG_CONTROL_SYSTEM(安全气囊).pdf

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SRC_SRS_AIRBAG_CONTROL_SYSTEM 安全气囊
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SRC-1 RESTRAINTS C D E F G I J K L M SECTION SRC A B SRC N O P CONTENTS SRS AIRBAG CONTROL SYSTEM BASIC INSPECTION ................................ .... 3 DIAGNOSIS AND REPAIR WORK FLOW .... ..... 3 Work Flow ........................................................... ......3 INTERMITTENTS INCIDENT ......................... ..... 5 Inspection Procedure ......................................... ......5 Trouble Diagnosis with CONSULT-III ................. ......5 FUNCTION DIAGNOSIS ........................... .... 6 SRS AIR BAG SYSTEM ................................. ..... 6 SRS Configuration .............................................. ......6 SRS Component Parts Location ......................... ......7 Driver Air Bag Module ......................................... ......7 Front Passenger Air Bag Module ........................ ......8 Front Side Air Bag ............................................... ......8 Side Curtain Air Bag ............................................ ......8 Front Seat Belt Pre-tensioner with Load Limiter . ......8 Direct-connect SRS Component Connectors ...... ......9 OCCUPANT CLASSIFICATION SYSTEM ..... ....10 System Diagram .................................................. ....10 Occupant Classification System (OCS) .............. ....10 PASSENGER SEAT BELT WARNING SYS- TEM ................................................................ ....12 System Diagram .................................................. ....12 System Description ............................................. ....12 Component Parts Location .................................. ....12 ON BOARD DIAGNOSTIC (OBD) SYSTEM .. ....13 Trouble Diagnosis Introduction ........................... ....13 SRS Operation Check ......................................... ....13 Trouble Diagnosis without CONSULT-III ............ ....15 CONSULT-III Function (AIR BAG) ...................... ....15 Self-Diagnosis Function (Without CONSULT-III) ....15 COMPONENT DIAGNOSIS ...................... ...17 B1049 – B1052, B1054 – B1057 DRIVER AIR- BAG MODULE ............................................... ....17 Description ........................................................... ....17 DTC Logic ............................................................ ....17 Diagnosis Procedure (Component diagnosis) ... ....18 B1065 – B1068, B1070 – B1073 PASSEN- GER AIRBAG MODULE ...................................20 Description ........................................................... ....20 DTC Logic ............................................................ ....20 Diagnosis Procedure (Component diagnosis) ... ....21 B1134 – B1137 SIDE AIRBAG MODULE LH ...23 Description ........................................................... ....23 DTC Logic ............................................................ ....23 Diagnosis Procedure (Component diagnosis) ... ....24 B1129 – B1132 SIDE AIRBAG MODULE RH ...26 Description ........................................................... ....26 DTC Logic ............................................................ ....26 Diagnosis Procedure (Component diagnosis) ... ....27 B1198 – B1201 SIDE CURTAIN AIR BAG MODULE LH (FRONT) ......................................29 Description ........................................................... ....29 DTC Logic ............................................................ ....29 Diagnosis Procedure (Component diagnosis) ... ....30 B1193 – B1196 SIDE CURTAIN AIR BAG MODULE RH (FRONT) .....................................32 Description ........................................................... ....32 DTC Logic ............................................................ ....32 Diagnosis Procedure (Component diagnosis) ... ....33 B1150 – B1153 SIDE CURTAIN AIR BAG MODULE LH (REAR) ........................................35 Description ........................................................... ....35 DTC Logic ............................................................ ....35 Diagnosis Procedure (Component diagnosis) ... ....36 B1145 – B1148 SIDE CURTAIN AIR BAG MODULE RH (REAR) .......................................38 Description ........................................................... ....38 DTC Logic ............................................................ ....38SRC-2 Diagnosis Procedure (Component diagnosis) ... ... 39 B1086 – B1089 SEAT BELT PRE-TENSION- ER LH .............................................................. ... 41 Description ........................................................... ... 41 DTC Logic ............................................................ ... 41 Diagnosis Procedure (Component diagnosis) ... ... 42 B1081 – B1084 SEAT BELT PRE-TENSION- ER RH ............................................................. ... 44 Description ........................................................... ... 44 DTC Logic ............................................................ ... 44 Diagnosis Procedure (Component diagnosis) ... ... 45 B1033 – B1035 CRASH ZONE SENSOR ...... ... 47 Description ........................................................... ... 47 DTC Logic ............................................................ ... 47 Diagnosis Procedure (Component diagnosis) ... ... 48 B1118 – B1120 SATELLITE SENSOR LH ..... ... 50 Description ........................................................... ... 50 DTC Logic ............................................................ ... 50 Diagnosis Procedure (Component diagnosis) ... ... 51 B1113 – B1115 SATELLITE SENSOR RH .... ... 53 Description ........................................................... ... 53 DTC Logic ............................................................ ... 53 Diagnosis Procedure (Component diagnosis) ... ... 54 B1XXX AIR BAG DIAGNOSIS SENSOR UNIT ... 56 Description ........................................................... ... 56 DTC Logic ............................................................ ... 56 Diagnosis Procedure (Component diagnosis) ... ... 57 B1023 PASSENGER AIR BAG OFF INDICA- TOR ................................................................. ... 59 Description ........................................................... ... 59 DTC Logic ............................................................ ... 59 Diagnosis Procedure (Component diagnosis) ... ... 60 B1017 – B1022 OCCUPANT CLASSIFICA- TION SYSTEM ................................................ ... 62 Description ........................................................... ... 62 DTC Logic ............................................................ ... 62 Diagnosis Procedure (Component diagnosis) ... ... 63 B1209 – B1211 COLLISION DETECTION ..... ... 65 Description ........................................................... ... 65 DTC Logic ............................................................ ... 65 Diagnosis Procedure (Component diagnosis) ... ... 65 ECU DIAGNOSIS ....................................... 66 DIAGNOSIS SENSOR UNIT .......................... ... 66 Wiring Diagram .................................................... ... 66 Trouble Diagnosis with CONSULT-III .................. ... 76 Trouble Diagnosis without CONSULT-III ............. ... 80 SYMPTOM DIAGNOSIS ............................ 84 SRS AIR BAG SYSTEM ................................. ... 84 “AIR BAG“ Warning Lamp Does Not Turn Off ..... ... 84 “AIR BAG“ Warning Lamp Does Not Turn On ..... ... 84 PASSENGER SEAT BELT WARNING SYS- TEM ................................................................. ... 86 Seat Belt Warning System Does Not Function .... ... 86 PRECAUTION ............................................ 87 PRECAUTIONS .............................................. ... 87 Precaution for Supplemental Restraint System (SRS) “AIR BAG“ and “SEAT BELT PRE-TEN- SIONER“ .............................................................. ... 87 Precaution for SRS “AIR BAG“ and “SEAT BELT PRE-TENSIONER“ Service ................................. ... 87 Occupant Classification System Precaution ........ ... 87DIAGNOSIS AND REPAIR WORK FLOW SRC-3C D E F G I J K L M A B SRC N O P BASIC INSPECTION DIAGNOSIS AND REPAIR WORK FLOW Work Flow INFOID:0000000001277706 OVERALL SEQUENCE DETAILED WORK FLOW 1.CUSTOMER INFORMATION Get detailed information from the customer about the symptom. >> GO TO 2 2.PRELIMINARY CHECK Perform preliminary check. Refer to SRC-13, “Trouble Diagnosis Introduction“. *1 SRC-13, “Trouble Diagnosis Intro- duction“ *2 SRC-13, “SRS Operation Check“ *3 SRC-15, “CONSULT-III Function (AIR BAG)“ *4 SRC-15, “Self-Diagnosis Function (Without CONSULT-III)“ WHIA0348ESRC-4DIAGNOSIS AND REPAIR WORK FLOW >> GO TO 3 3.TECHNICAL SERVICE BULLETINS Check for technical service bulletins. >> GO TO 4 4.USER MODE Perform self-diagnosis using the “AIR BAG“ warning lamp in User mode. Refer to SRC-13, “SRS Operation Check“. >> GO TO 5 5.SELF-DIAGNOSIS Perform SELF-DIAGNOSIS. Refer to SRC-15, “CONSULT-III Function (AIR BAG)“ (w/CONSULT-III) or SRC- 15, “Self-Diagnosis Function (Without CONSULT-III)“ (w/o CONSULT- III). >> GO TO 6 6.REPLACE PART Replace the malfunctioning part. >> GO TO 7 7.FINAL CHECK Check SRS using Diagnosis mode and User mode. Does Diagnosis mode and User mode indicate SRS normal? YES >> Inspection end. NO >> GO TO 5INTERMITTENTS INCIDENT SRC-5C D E F G I J K L M A B SRC N O P INTERMITTENTS INCIDENT Inspection Procedure INFOID:0000000001277707 INTERMITTENT TROUBLE An intermittent incident may have occured in the past but is not being detected currently. This DTC will not be detected on SELF DIAG [CURRENT], but may be viewed on SELF DIAG [PAST] using CONSULT-III. Trouble Diagnosis with CONSULT-III INFOID:0000000001277708 DIAGNOSTIC PROCEDURE 4 Check SRS Repair History 1.CONSIDER POSSIBILITY THAT SELF-DIAGNOSTIC RESULT WAS NOT ERASED AFTER REPAIR Check repair history of the SRS. Have any previous repairs been made to the SRS? Yes >> Self-diagnostic result “SELF-DIAG [PAST]” (previously stored in the memory) might not be erased after repair. Go to “DIAGNOSTIC PROCEDURE 3“. Refer to SRC-15, “Self-Diagnosis Function (Without CONSULT-III)“. No >> Go to “DIAGNOSTIC PROCEDURE 2“. Refer to SRC-13, “SRS Operation Check“.SRC-6SRS AIR BAG SYSTEM FUNCTION DIAGNOSIS SRS AIR BAG SYSTEM SRS Configuration INFOID:0000000001277709 The air bag deploys if the air bag diagnosis sensor unit is activated while the ignition switch is in the ON or START position. The collision modes for which supplemental restraint systems are activated are different among the SRS sys- tems. For example, the driver air bag module, front passenger air bag module and front seat belt pre-tension- ers are activated in a frontal collision but not in a side collision. SRS configurations for some collision modes are as follows: WHIA0194E SRS configuration Frontal collision Left side collision Right side colli- sion Rollover Driver air bag module x — — — Front passenger air bag module x — — — Front LH seat belt pre-tensioner x — — x Front RH seat belt pre-tensioner x — — x Front LH side air bag module (if equipped) — x — — Front RH side air bag module (if equipped) — — x — LH side curtain air bag module (if equipped) — x — x RH side curtain air bag module (if equipped) — — x xSRS AIR BAG SYSTEM SRC-7C D E F G I J K L M A B SRC N O P SRS Component Parts Location INFOID:0000000001277781 Driver Air Bag Module INFOID:0000000001277782 The driver air bag module is dual stage and located in the steering wheel assembly. It operates with the SRS system in a frontal colli- sion exceeding a specified level. 1. Side curtain air bag modules (If equipped) 2. Front RH side air bag module (If equipped) 3. Front RH seat belt pre-tensioner 4. Belt tension sensor 5. Seat belt buckle switch RH 6. RH side air bag (satellite) sensor (If equipped) 7. Occupant classification system sen- sor 8. Occupant classification system control unit 9. Front passenger air bag off indicator 10. Front passenger air bag module 11. Crash zone sensor 12. Air bag warning lamp 13. Spiral cable 14. Driver air bag module 15. LH side air bag (satellite) sensor (If equipped) 16. Front LH seat belt pre-tensioner 17. Air bag diagnosis sensor unit 18. Front LH side air bag module (If equipped) WHIA0196E WHIA0325ESRC-8SRS AIR BAG SYSTEM Front Passenger Air Bag Module INFOID:0000000001277783 The front passenger air bag module is located behind the instrument panel assembly. It operates with the SRS system in a frontal colli- sion exceeding a specified level. Refer to SRC-10, “Occupant Clas- sification System (OCS)“ for more information. Front Side Air Bag INFOID:0000000001277713 Front side air bag modules are built into the front seatback assem- blies. Vehicles with side air bags are equipped with labels as shown. Side Curtain Air Bag INFOID:0000000001277714 Side curtain air bag modules are located above the vehicle headlining. Vehicles with side curtain air bags are equipped with labels as shown. Front Seat Belt Pre-tensioner with Load Limiter INFOID:0000000001277784 The seat belt pre-tensioner system with load limiter is installed for both the driver's seat and the front passenger's seat. It operates simultaneously with the SRS air bag system in the event of a frontal collision with an impact exceeding a specified level. When the frontal collision with an impact exceeding a specified level occurs, seat belt slack resulting from clothing or other factors is immediately taken up by the pre-tensioner. Vehicle passengers are securely restrained. When passengers in a vehicle are thrown forward in a collision and the restraining force of the seat belt exceeds a specified level, the load limiter permits the specified extension of the seat belt by the twisting of the ELR shaft, and a relaxation of the chest-area seat belt web tension while maintaining force. WHIA0332E WHIA0327E WHIA0041E WHIA0225ESRS AIR BAG SYSTEM SRC-9C D E F G I J K L M A B SRC N O P Direct-connect SRS Component Connectors INFOID:0000000001277785 The following SRS components use direct-connect style harness connectors.  Driver air bag module  Front passenger air bag module  LH side front curtain air bag module  LH side rear curtain air bag module  RH side front curtain air bag module  RH side rear curtain air bag module  Front LH seat belt pre-tensioner  Front RH seat belt pre-tensioner Always pull up to release locking tab prior to removing connector from SRS component. Always push down to lock locking tab after installing connector to SRS component. When locked, the locking tab is level with the con- nector housing. WHIA0103ESRC-10OCCUPANT CLASSIFICATION SYSTEM OCCUPANT CLASSIFICATION SYSTEM System Diagram INFOID:0000000001277717 Occupant Classification System (OCS) INFOID:0000000001277786 The occupant classification system (OCS) identifies different size occupants, out of position occupants, and detects if child seat is present in the front passenger seat. The OCS receives inputs from the occupant classi- ficat
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