airbag SSANGYONG MUSSO 2003 Service Manual

SUPPLEMENTAL RESTRAINT SYSTEM(SRS) 8B-7
DIAGNOSIS
DESCRIPTION Air bag control unit continuously controls system function as follows during ignition ON or driving.
- Recognition of collision
- Internal diagnosis
- External diagnosisIf recognize or detect defects, warning lamp will turn on. If there is danger of improper deployment, the system will enter overall shutdown status and the air bag will not inflate. Air bag control unit will store detected internal and external defects in the EEPROM. System Control
Battery Voltage Check
Battery voltage will be monitored continuously. If voltage is out of normal operating range, all system diagnosis will stop and warning lamp turn on. Battery Voltage (V)< 8.7
9 - 16
> 16.3
Function
System diagnosis stops and warning lamp turns on Normal operation range
System diagnosis stops and warning lamp turns on
Squib Diagnosis It checks not only high (4.50.5) or low (1.40.5) resistance but also short resistance (1- 10k) status between the battery and ground to indicate defects in squib line by blinking warning lamp. Air bag control unit (AC4) can measure squib resistance.
Warning Lamp Turning On Air bag control unit detects system defects during ignition ON or driving and displays following 2 warning lamps.
- Warning lamp ON: internal defects of the air bag control unit
- Warning lamp blinking: higher resistance than standard in the squib line or short at the battery or ground, Safety Function Check It checks defects during operation of the arming sensor If the sensor is shorted for more than 2 seconds, the module will enter overall shutdown mode.
Temperature Sensor
Function of the temperature sensor will be monitored continuously. If there is fault due to defective sensor or short, the lamp will turn on and program will take calibration temperature (25) of collision conditions. Power Supply Airbag control unit operates in 9-16v and the characteristic of the system has backup condenser to supply the power for max.150ms if there is power defect during collision.

SUPPLEMENTAL RESTRAINT SYSTEM(SRS) 8B-19
Air Bag Horn (Relay) Remote Control (Electronic Circuit)
CLOCK SPRING
General SpecificationVoltage
Rating Operating VoltageCurrent Rating Air Bag Circuit Resistance Isolating ResistanceRotating Range DC 12V
DC 6 - 18V
10 - 30mA(6A,0.1second)
200 - 220mA
15mA
0.16 - 0.38 (-40°C - 85°C)
5M
2.7 - 3.1 Rotation from neutral Position to Both Sides
Notice
Clock spring can not be repaired.
Do not disassemble or modify.
To adjust to the center position, rotate clockwise until it stops and then rotate it counterclockwise 2.3 ± 0.2revolutions and align marks. If not, airbag system can
not work normally and driver can be injured seriously.

INSTRUMENTATION/DRIVER INFORMATION 9E-3
COMBINATION METER
COMPONENT LOCATOR
1. Speedometer
2. Odometer
3. Trip odometer
4. Tachometer
5. Coolant temperature gauge
6. Fuel gauge
7. Low fuel level warning light
8. Turn signal indicator (left)
9. Turn signal indicator (right)
10. Outside rearview mirror & tailgate heating switch
11. Reset button
12. Auto shift indicator*
13. Door open warning light
14. TCS indicator (equipped with ABD)*
21. ABS warning light* 22. EBD warning light*
23. ECS / SPORT warning light*
24. 4 - wheel warning light*
25. 4 - wheel high indicator
26. 4 - wheel low indicator
27. WINTER indicator
28. POWER indicator
29. High beam indicator
15. Alternator warning light
16. Engine oil pressure warning light
17. Brake system warning light
18. Glow indicator light (For Diesel engine)
19. Airbag warning light*
20. Seat belt reminder