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S R S
S y s t e m Description
98-99 Models
SRS C o m p o n e n t s
The SRS is a safety device w h i c h , w h e n used in conjunction w i t h the seat belt, is designed to help protect the driver
and f r o n t passenger in a frontal impact exceeding a certain set limit. The system consists of the SRS unit, including
safing sensor and impact sensor (A), the cable reel (B), the driver's airbag (C) and the front passenger's airbag (D).
SRS O p e r a t i o n
The m a i n circuit in the SRS unit senses and judges the force of impact and, if necessary, ignites the inflator charges. If
battery voltage is t o o low or power is disconnected due t o the impact, the voltage regulator and the back-up power
circuit respectively will keep voltage at a constant level.
For t h e SRS t o operate:
(1) The impact sensor must activate, and send electric signals to the microprocessor.
(2) The microprocessor must compute the signals, and m u s t send signals to the airbag inflators.
(3) The inflators must ignite and deploy the airbags.
SRS UNIT
Self-diagnosis S y s t e m
A self-diagnosis circuit is built into the SRS unit; w h e n the ignition switch is turned ON (II), the SRS indicator light
comes o n and goes off after about 6 seconds if the system is operating normally.
If the light does not come on, or does not go off after 6 seconds, or if it comes on while driving, it indicates an
abnormality in the system. The system must be inspected and repaired as soon as possible.
For better serviceability, the m e m o r y will store the cause of the malfunction, and the data link circuit passes on the
information f r o m the m e m o r y to the Data Link Connector (DLC). This information can be read w i t h the Honda PGM
Tester connected to the DLC (16P).
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Troubleshooting
