Description
The SRS is a safety device which, when used in conjunction with the seat belt, is designed to protect the driver by
operating only when the car receives a frontal impact exceeding a certain set limit.
The system is composed of left and right dash sensors, the SRS control unit (including the cowl sensor), the cable reel
and
assembly.
DASH SENSOR
\
SRS UNIT
DASH
I
\
CABLE REEL
ASSEMBLY
OPERATION:
As shown in the diagram below, the left and right dash sensors are connected in parallel. The parallel set of sensors are
connected in series by the
inflator circuit and the car battery. In addition, a backup power unit is connected in
parallel with the car battery. The backup power unit and the cowl sensor are located inside the SRS control unit.
The SRS operational sequence is as follows:
The cowl sensor activates, and one or both dash sensors activate.
(2) Electrical energy is supplied to the
inflator by the battery, or the backup power unit if the battery voltage is
too low.
deployment.
At least the cowl and one dash sensor must be activated simultaneously for at least 0.002 seconds in order for the
to be deployed.
SRS UNIT
Self-diagnosis system
A self-diagnosis circuit is built into the SRS control unit; when the ignition switch is turned ON, the SRS light comes on
and goes out after about 6 seconds if the system is operating normally. If the light does not come on, or does not go out
after 6 seconds, or if it comes on while driving, this indicates an abnormality in the system. It must be inspected and
repaired as soon as possible.
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Summary of Contents for Acura NSX 1991
Page 1: ... j s _ _ ...
Page 3: ......
Page 22: ...Special Tools Individual tool lists are located at the front of each section ...
Page 23: ...Specifications Standards and Service Limits 3 2 Design Specifications 3 l 1 ...
Page 39: ...Body Specifications m I 1 175 46 3 Unit mm in ...
Page 40: ...Maintenance Lubrication Points 4 2 Maintenance Schedule 4 4 ...
Page 42: ... 13 I 0 4 3 ...
Page 60: ...Engine Removal Installation ...
Page 81: ...lr I 6 7 ...
Page 191: ... n EilEli3 A A A Cl51 c4 BLU 1 TACHO METER CONNECTOR Cl61 C478 C488 REDlYEL YELlRED J A GlOl ...
Page 193: ... PGM FI 1 IDLE CONTROL 1 FUEL SUPPLY 1 EMISSION CONTROL II 17 ...
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Page 219: ... cont d II 43 ...
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Page 477: ...14 95 ...
Page 482: ...Illustrated Index L Side Cover 14 100 ...
Page 484: ...Illustrated Index Transmission Housing 14 102 ...
Page 486: ...Illustrated Index Torque Converter Housing Valve Body ...
Page 527: ...3 Assemble the transmission in the following numbered sequence Replace cont dl ...
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Page 698: ...9 Nom 0 9 kg m 7 lb ft REAR 9 Nom 0 9 kg m 7 lb ft ...
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Page 888: ...Frame Repair Chart 20 62 ...
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Page 937: ...22 49 ...
Page 950: ...Blower 22 62 ...
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Page 1003: ... JND WIRE EN NE GROUND WIRE B ...
Page 1005: ... lzl A ENGINE W I R E H A R N E S S cont d 23 l 9 ...
Page 1007: ... rl p173 5 Cl34 Cl32 Ti03 23 21 ...
Page 1009: ...C2bl c262 I C203 cont d 23 23 ...
Page 1011: ... rl SUB RELAY BOX A cont d 23 25 ...
Page 1013: ...FRONT COMPAR 23 27 J ...
Page 1015: ...e RIGHT RETRACTOR SUB HARNESS I LEFT RETRACTOR SUB HARNESS I ...
Page 1019: ...C466 C465 C468 C464 c473 FLOOR WlFiE HARNESS co d 23 33 ...
Page 1021: ... ITI RETRACTABLE HEADLIGHT CONTROL UNIT i FLOOR WIRE HARNESS 23 35 ...
Page 1023: ...MAIN FUSE BOX I 23 37 ...
Page 1027: ...DRIVER S DOOR WIRE HARNESS PASSENGER S DOOR WIRE 23 41 ...
Page 1029: ...SRS CONTROL UN FUEL TANK WIRES 23 43 ...
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Page 1275: ...1 ACTUATOR ASSEMBLY SPEED SENSOR 23 l 33 ...
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