2007-2012 Mitsubishi Eclipse Spyder Service & Repair Manual

52B-1 GROUP 52B SUPPLEMENTAL RESTRAINT SYSTEM (SRS) CONTENTS GENERAL DESCRIPTION. . . . . . . . . 52B-3 SERVICE PRECAUTIONS . . . . . . . . . 52B-26 SRS AIR BAG DIAGNOSIS . . . . . . . . 52B-29 INTRODUCTION TO DIAGNOSIS . . . . . . . 52B-29 TROUBLESHOOTING STRATEGY . . . . . . 52B-29 DIAGNOSTIC FUNCTION . . . . . . . . . . . . . 52B-29 SRS WARNING LIGHT CHECK . . . . . . . . . 52B-31 PASSENGER SEAT BELT WARNING LIGHT CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52B-31 PASSENGER AIR BAG OFF INDICATOR LIGHT CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52B-31 DIAGNOSTIC TROUBLE CODE CHART . . 52B-32 DIAGNOSTIC TROUBLE CODE PROCEDURES. . . . . . . . . . . . . . . . . . . . . . 52B-38 SYMPTOM CHART. . . . . . . . . . . . . . . . . . . 52B-373 SYMPTOM PROCEDURES . . . . . . . . . . . . 52B-374 DATA LIST REFERENCE TABLE . . . . . . . . 52B-384 ACTUATOR TEST REFERENCE TABLE . . 52B-385 FAIL-SAFE FUNCTION . . . . . . . . . . . . . . . . 52B-385 ACCURACY TESTING OF OCCUPANT CLASSIFICATION SENSOR . . . . . . . . . . . . 52B-385 SPECIAL TOOLS . . . . . . . . . . . . . . . . 52B-386 TEST EQUIPMENT . . . . . . . . . . . . . . . 52B-387 POST-COLLISION DIAGNOSIS . . . . . 52B-388 INDIVIDUAL COMPONENT SERVICE . . . . . . . . . . . . . . . . . . . . . . . 52B-394 Continued on next page WARNING • Carefully read and observe the information in the SRS SERVICE PRECAUTIONS prior to any service. • For information concerning diagnosis or maintenance, always observe the procedures in the SRS Diagnosis or the SRS Maintenance sections, respectively. • If any SRS components are removed or replaced in connection with any service procedures, be sure to follow the procedures in the INDIVIDUAL COMPONENT SERVICE section for the comportments involved. • If you have any questions about the SRS, please contact the MMNA Tech Line. Battery posts, terminals and related accessories contain lead and lead compounds. WASH HANDS AFTER HANDLING. WARNING

52B-2 ON-VEHICLE SERVICE . . . . . . . . . . . 52B-395 ACCURACY CHECK OF OCCUPANT CLASSIFICATION SENSOR . . . . . . . . . . . 52B-395 FRONT IMPACT SENSORS . . . . . . . 52B-402 REMOVAL AND INSTALLATION . . . . . . . . 52B-402 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . 52B-404 SRS CONTROL UNIT (SRS-ECU). . . 52B-405 REMOVAL AND INSTALLATION . . . . . . . . 52B-405 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . 52B-407 AIR BAG MODULE(S) AND CLOCK SPRING . . . . . . . . . . . . . . . . . . . . . . . 52B-408 REMOVAL AND INSTALLATION . . . . . . . . 52B-408 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . 52B-414 SIDE IMPACT SENSOR . . . . . . . . . . 52B-417 REMOVAL AND INSTALLATION . . . . . . . . 52B-417 INSPECTION . . . . . . . . . . . . . . . . . . . . . . . 52B-419 CURTAIN AIR BAG MODULE(S) . . . . 52B-420 REMOVAL AND INSTALLATION . . . . . . . . 52B-420 INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 52B-423 SEAT BELTS WITH PRE-TENSIONER . . . . . . . . . . . . . . . . 52B-424 REMOVAL AND INSTALLATION . . . . . . . . 52B-424 INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 52B-427 SEAT SLIDE SENSOR . . . . . . . . . . . . 52B-428 REMOVAL AND INSTALLATION . . . . . . . . 52B-428 INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 52B-430 OCCUPANT CLASSIFICATION SENSOR . . . . . . . . . . . . . . . . . . . . . . . 52B-431 REMOVAL AND INSTALLATION . . . . . . . . 52B-431 INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . 52B-431 AIR BAG MODULE AND SEAT BELT PRE-TENSIONER DISPOSAL PROCEDURES . . . . . . . . . . . . . . . . . . 52B-432 SPECIFICATIONS . . . . . . . . . . . . . . . 52B-454 FASTENER TIGHTENING SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . 52B-454

GENERAL DESCRIPTION TSB Revision SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-3 GENERAL DESCRIPTION M1524000100837 NOTE: In this manual, the part names are changed from the names in owner's manual into the following names. . • Driver’s seat position sensor → Seat slide sensor • Passenger’s seat weight sensor → Occupant classification sensor • Seat belt buckle switch → Seat belt switch • Passenger air bag off indicator → Passenger air bag OFF indicator light • Front passenger seat belt warning light → Pas- senger seat belt warning light . WARNING Improper service could result in serious injury of the service personnel or the passenger. . The SRS is designed to supplement the front seat belts. It reduces injury to the driver(s) and the front passenger(s) by deploying air bag(s) in case of a head-on collision. The SRS front air bags form an advanced air bag system together with sensors at the vehicle and sensors attached to the front seats. . Side-airbag systems in the front seats are activated when side impacts exceed criteria to protect the occupants’ upper bodies. . The curtain air bag systems are activated when side impacts applied to the vehicle exceed criteria, to protect the heads of the occupants in the front seats. . The seat belts with pre-tensioner work simulta- neously with the SRS. The seat belt incorporating the pre-tensioner automatically winds the seat belt upon front impact to reduce forward shifting of the driver’s and passenger’s. The seat belt use status controls the activation and deactivation of the pre-tensioner. . The SRS consists of six air bag modules, SRS air bag control unit (SRS-ECU), two front impact sensors, two side impact sensors, SRS warning light, passenger air bag OFF indicator light, passenger seat belt warning light, clock spring, seat belt pre-tensioner, seat belt switch, seat slide sensor, occupant classification sensor and occupant classification-ECU. Air bag modules are located in the center of the steering wheel and above the glove box. Side-airbags are located inside the front seatback assemblies. The curtain air bag module consists of an air bag, an inflator, and the fixing gear relating to those parts, and is installed in the roof side sections (from the driver's and the passenger's front pillars to the rear pillars). Each air bag consists of a folded air bag and an inflator unit. The SRS-ECU placed on the forefront of the floor monitors the system and has a front air bag safing G-sensor, front air bag analog G-sensor and a side-airbag safing G-sensor. The front impact sensor is assembled in the radiator sup- port panel to monitor impact in case of front impact. The side impact sensors inside the center pillars monitor the shock incurred by the sides of the vehicle. The SRS warning light on the combination meter indicates the operational status of the SRS. The clock spring is installed in the steering column. The seat belt pre-tensioner is built into the driver's and passenger's front seat belt retractor. The seat slide sensor is installed at the seat adjuster section of the driver seat in order to detect the driver seat slide position. The occupant classification sensor is installed underneath a rail of the passenger seat to detect the load on the seat. The passenger air bag OFF indicator light is installed to the lower left of the multi-center display, and illuminates when the passenger seat air bag is inactive. The passenger seat belt warning light is installed to the lower right of the multi-center display, and illuminates when the passenger is not wearing the seat belt. The seat belt switch detects whether the seat belt is used. Only authorized service personnel should do work on or around the SRS components. Those service personnel should read this manual carefully before start- ing any such work. .

GENERAL DESCRIPTION TSB Revision SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-4 ON-BOARD DIAGNOSTIC/SRS WARNING LIGHT FUNCTION The diagnosis unit monitors the SRS system and stores data concerning any detected faults in the system. When the ignition switch is in "ON" or "START" position, the SRS warning light should illuminate for about seven seconds and then turn "OFF." That indicates that the SRS system is in operational order. If the SRS warning light does any of the following, immediate inspection by an authorized dealer is needed: 1. The SRS warning light does not illuminate as described above. 2. The SRS warning light stays on for more than seven seconds. 3. The SRS warning light illuminates while driving. If a vehicle's SRS warning light is in any of these three condi- tions, the SRS system must be inspected, diagnosed and ser- viced in accordance with this manual. AC405758 SRS WARNING LIGHT AB

GENERAL DESCRIPTION TSB Revision SUPPLEMENTAL RESTRAINT SYSTEM (SRS) 52B-5 CONSTRUCTION DIAGRAM NOTE: This construction diagram shows the general view of the SRS components. For details, refer to "Schematic(P.52B-9), "Configuration Diagrams(P.52B-12), " and "Circuit Diagram(P.52B-14)". AC406537 AC205757 AC405690 AC405758 AC405787 AC406218 AC405689 VEHICLE IDENTIFICATION CODE CHART PLATE SRS WARNING LIGHT PASSENGER AIR BAG OFF INDICATOR LIGHT PASSENGER SEAT BELT WARNING LIGHT CLOCK SPRING DRIVER'S AIR BAG MODULE SRS-ECU DATA LINK CONNECTOR (FOR SCAN TOOL) PASSENGER'S (FRONT) AIR BAG MODULE FRONT IMPACT SENSOR SIDE-AIRBAG MODULE SIDE IMPACT SENSOR SEAT BELT WITH PRE-TENSIONER SEAT SLIDE SENSOR SEAT BELT SWITCH SRS-ECU OCCUPANT CLASSIFICATION SENSOR SIDE IMPACT SENSOR SIDE-AIRBAG MODULE SEAT BELT WITH PRE-TENSIONER OCCUPANT CLASSIFICATION-ECU CURTAIN AIR BAG MODULE AC

2007-2012 Mitsubishi Eclipse Spyder Service & Repair Manual

You're Reading a Preview

Recently Viewed