background image

02-3

AIR BAG SYSTEM

korando 2010.10

8810-00

1. SPECIFICATION

Operating voltage

9 to 16 V

Voltage for system diagnosis and SDM self diagnosis

9 to 16 V

Ignition voltage for side air bag and pretensioner

9 to 16 V

Communication voltage for front impact sensor 

9 to 16 V

Communication voltage for side impact sensor

9 to 16 V

Operating temperature 

-40℃ to 85℃

Storage temperature 

-40℃ to 90℃

Ignition temperature 

-30℃ to 85℃

Over voltage protection

       24 V

2. MAJOR REPLACEMENT PARTS AFTER AIR BAG 
    DEPLOYMENT

1) In Case of Front Air Bag Deployment

Air bag unit and its wiring (including connector), seat belt pretensioner and its wiring (including 
connector), whole front air bags, instrument panel, front impact sensor and other damaged 
components

2) In Case of Curtain Air Bag Deployment

Deployed curtain air bag, air bag unit and its wiring (including connector), impact G sensor 
assembly for curtain air bag, damaged trim, seat and roof headlining

Summary of Contents for korando C200

Page 1: ...ge temperature 40 to 90 Ignition temperature 30 to 85 Over voltage protection 24 V 2 MAJOR REPLACEMENT PARTS AFTER AIR BAG DEPLOYMENT 1 In Case of Front Air Bag Deployment Air bag unit and its wiring including connector seat belt pretensioner and its wiring including connector whole front air bags instrument panel front impact sensor and other damaged components 2 In Case of Curtain Air Bag Deploy...

Page 2: ...ed or dropping impact onto the road surface with a large angle occurs The air bag seldom deploys when A collision to diagonal direction not a front collision occurs or the vehicle tips over A weak collision which the sensor cannot detect occurs under the activation requirements A collision against narrow objects such as a telegraph pole or a tree occurs The vehicle falls into a drainage or a puddl...

Page 3: ... are installed in both roof side rails Curtain air bag The side air bags are installed in the outer sides of the driver s and passenger s seats to minimize occupants side injuries in case of a side impact Side air bag Driver seat Passenger seat Side airbags and curtain air bags operate independently from the front airbag system ...

Page 4: ...ts including the steering wheel air bag mounting area and harness Incorrect inspection could cause a problem with an air bag and seat belt pretensioner and they cannot protect occupants properly Inspection and repair service should be done only by a qualified technician An infant or a child should not be seated on the front seat alone or on an adult s lap An infant or a child could be severely inj...

Page 5: ...n the dash board You can severely injured when the air bag inflates It is normal that a loud noise dust and smoke occur when the air bag and seat belt pretensioner operate The gas come out of air bag seat belt pretensioner activation is non toxic nitrogen gas However if this gas occurs irritation to your skin eyes nose and so on wash it out with clean water Seek medical help if symptoms develop Th...

Page 6: ... unit should be packaged in an air tight container to prevent any damage Please do not connect a tester to any air bag connector or single item to measure the supplied power or resistance The detonator may explode due to a sudden extra power supplied by the tester Disconnect the negative battery cable before installing or removing the part related to the air bag 1 2 3 4 When turning on the ignitio...

Page 7: ......

Page 8: ...02 10 korando 2010 10 8810 00 AIR BAG SYSTEM Driver side air bag Seat belt pretensioner SDM unit BCM Driver air bag module Passenger air bag module 1 SYSTEM CONFIGURATION ...

Page 9: ...02 11 AIR BAG SYSTEM korando 2010 10 8810 00 Inflatable curtain air bag module Side air bag sensor assembly Front impact sensor assembly Air bag warning lamp instrument cluster Height adjuster ...

Page 10: ...loy Side air bag module passenger side Not deploy Deploy Inflatable curtain air bag module driver side Deploy Not deploy Inflatable curtain air bag module passenger side Not deploy Deploy Impact area Front side Driver s air bag Deploy Passenger s air bag Deploy Seat belt pretensioner driver side Deploy Seat belt pretensioner passenger side Deploy When the ignition switch is turned to ON SDM starts...

Page 11: ...eration rate that each collision G sensor reads the air bag unit sends out about 2 to 4 or higher Amp current This current generates some heat which fires the detonator in the inflator This table shows the basic inner resistance of the air bag related module and the basic instant current necessary for a firing 1 Deployment Firing Loop Items Driver side or LH Passenger side or RH Front air bag 0 03...

Page 12: ...her crash out is delayed until the current 200 ms crash out is completed The tolerance at the time of signaling is 5 The signal repeats increasing for 390 ms and decreasing for 10 ms before crash At the time of crash the switch is closed and the signal is kept low condition for 200 ms At the time of crash the crash out signal is changed to the low condition for 200 ms immediately to indicate the c...

Page 13: ...ngs are the specifications of the electrical interface The load resistance of the SDM should be 590 ohms or higher It may not be possible to operate the collision occurrence circuit normally if the resistance value does not reach this specified value Items Minimum Average Maximum Remark Driving current current value when the transistor is turned on 12 31 mA 19 6 mA 30 mA Depending on the battery v...

Page 14: ...al operation Checks the FIS condition and sends the result as OK or NOK and also sends the severe level of the crash Same as FIS Voltage The FIS hardware reset performed under 5 V communication voltage low Same as FIS Fault The fault is found in the current ignition cycle but the fault is deactivated in the next ignition cycle Multiple faults can be found and deactivated in the same ignition cycle...

Page 15: ... cycle and the SDM is running without any active fault right after starting in the ignition cycle When there is no active fault and past faults occurred within 10 times The warning lamp is operated as shown below every time the vehicle is started if the SDM is running without any active fault in the entire time and past faults in the previous ignition cycle occurred within 10 times Battery voltage...

Page 16: ... times or more except battery voltage too low Internal fault Impact record Pretensioner fired only If the connector is not connected properly or SDM battery voltage is out of the specified range internally battery voltage for warning lamp the warning lamp is kept ON Warning lamp condition change during operation The warning lamp comes on or off according to the actual fault condition during SDM op...

Page 17: ...02 19 AIR BAG SYSTEM korando 2010 10 8810 00 4 CIRCUIT DIAGRAM ...

Page 18: ...odule Driver Air bag module Passenger Screw Nut Air bag module INF curtain Brkt Icab FRT 1 2 3 6 7 8 11 12 Bolt T screw Truss_M4x0x12 Grommet screw_M4 Sensor assy Side air bag Screw Sensor assy FRT impact Wiring assy Air bag Wiring assy Air bag EXTN 13 14 15 16 17 18 22 23 ...

Page 19: ... by the deceleration from vehicle collision the detonation is fired by the electrical signal of the air bag unit Then the detonation sets off explosives and nitrogen gas is generated At this point the air bag very quickly deploys and the gas is emitted from the relieving hole to absorb impact upon the driver Front side of DAB module Rear side of DAB module 1 Location ...

Page 20: ...ponents Air bag cover Air bag cushion approx 50 liters Retainer ring Air bag housing Inflator approx 195 kP Nut The inflator consists of the detonator explosives and the gas generator It inflates the air bag when the vehicle collides 3 Inflator Circuit ...

Page 21: ...on both seats are made to operate together When the collision G sensor inside the air bag unit sends a collision signal the air bag unit instantaneously applies a high current to the driver s and passenger s air bags and the seat belt pretensioners on both seats fires the detonator in the inflator and inflates the air bag cushions curtain air bags independently operate in case of the side collisio...

Page 22: ...02 24 korando 2010 10 8620 23 AIR BAG SYSTEM 2 Components 3 Inflator Circuit Air bag cover Air bag cushion approx 50 liters Air bag housing Retainer Inflator approx 330 kP Cowl bracket Nut ...

Page 23: ...d The curtain air bags are installed on both sides of the roof side rails and inside the headlinings Each curtain air bag is also composed of the air bag cushion and the inflator that has the detonator explosives and the gas generator Deployed 1 Location ...

Page 24: ...02 26 korando 2010 10 8621 03 AIR BAG SYSTEM 2 Components Curtain air bag mountings 6 points Inflator mountings Inflator Gas guide Air bag cushion Cover curtain air bag Bolt ...

Page 25: ...02 27 AIR BAG SYSTEM korando 2010 10 8621 03 3 Inflator Circuit ...

Page 26: ... Driver side The side air bags are installed in the outer sides of the driver passenger and rear seats to minimize the side impact applied to the occupant The Side air bags and curtain air bags are operated independently from the front air bag system 1 Mounting Location ...

Page 27: ...02 29 AIR BAG SYSTEM korando 2010 10 7400 13 3 Inflator Circuit 2 Components Air bag cover Air bag cushion Deflector Inflator Wiring harness ...

Page 28: ...re applied a seat belt with a pretensioner detects the stopping action and tightens the belt before the wearer is propelled forward This holds the occupant more securely in the seat It is to improve comfort and optimize restrictive performance in case of a collision by adjusting the belt position to the occupant s shoulder Height adjuster Pretensioner Height adjuster 1 Location ...

Page 29: ...ioner reel assembly 2 Reel bracket 3 Upper stay for ring 4 D ring 5 Bending tongue 6 Tongue stopper 7 Mini anchor 8 D bolt 9 Washer 10 Fiber washer 11 Rivet 12 D label 13 Plastic washer 14 Steel washer 15 D bolt 16 Label 17 D bolt 18 Spacer 19 Bush 20 Mini anchor cover ...

Page 30: ...02 32 korando 2010 10 7460 13 AIR BAG SYSTEM 3 Inflator Circuit ...

Page 31: ...s activated mainly by the signal from the front impact sensor assembly The SDM unit assembly compares this signal with its longitudinal lateral G sensor values to inflate the front air bag Front impact sensor assembly LH Front impact sensor assembly RH 1 Mounting Location ...

Page 32: ...02 34 korando 2010 10 8627 03 AIR BAG SYSTEM 2 Front Impact Sensor Connector 3 Front Impact Sensor Circuit Pin No Function 1 Signal 2 Ground ...

Page 33: ...signal from the SDM unit assembly independently from the front air bag system The ignition signals of the side air bag system are supplied from the 2 side air bag sensors installed to the side center of the vehicle body 1 Location Side air bag sensor assembly Side air bag sensor connector Left Right ...

Page 34: ...02 36 korando 2010 10 8627 03 AIR BAG SYSTEM 2 Side Air Bag Sensor Connector 3 Side Air Bag Sensor Circuit Pin No Function 1 Signal 2 Ground ...

Page 35: ...02 37 AIR BAG SYSTEM korando 2010 10 8625 03 SDM unit assembly Connector The SDM unit assembly is mounted under the front of the front console 1 Location Location ...

Page 36: ...rters and supplies the firing voltage for the two firing circuits and the internal operating voltage of the SDM If the internal operating voltage falls below a defined threshold a reset is executed Watchdog The watchdog checks the micro controller μC periodically If there is any fault in the micro controller it will be reset and firing loop will be locked Then the warning lamp will come on Detects...

Page 37: ...measuring the energy reserve capacitor If there is any problem in the energy reserve capacitor it sets a diagnostic trouble code associated with an energy reserve function Orthogonal acceleration sensor The integrated electrical acceleration sensor provides an electrical signal of the vehicle s acceleration along the orthogonal axis and longitudinal axis The electrical signals are proportional to ...

Reviews: