Srs Connectors
HINT:
SRS connectors are located as shown in the following illustration.
- H12007
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No. |
item |
Application |
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0) |
Terminal Twin-Lock Mechanism |
Connectors 1,2, 3, 4. 5. 6, 7. 8, 9, 10, 11, 12, 13, 14, 15, 16, 17. 18, 19, 20 |
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m |
Airbag Activation Prevention Mechanism |
Conrmciors 1, 2, 3, 4, 5,6, 8, 19 |
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0) |
Electrical Connection Check Mechanism |
Connectors ?, 2, 3 |
(a) All connectors in the SRS are colored in yellow to distinguish them from other connectors. Connectors having special functions and specifically designed for the SRS are used in the locations shown on the previous page to ensure high reliability. These connectors use durable gold-plated terminals.
(1) Terminal Twin-Lock Mechanism
Each connector has a two-piece component consisting of a housing and a spacer. This design enables the terminal to be locked securely by two locking devices (the retainer and the lance) to prevent terminals from coming out.
(2) Airbag Activation Prevention Mechanism
Each connector contains a short spring plate. When the connector is disconnected, the short spring plate automatically connects positive (+) terminal and negative {-) terminal of the squib.
►When Connector is Connected
When Connector is Disconnected
Housing
►When Connector is Connected
Housing
Short Spring Plate
Housing
Short Spring Plate
Housing
Terminal
Terminal
Squib
Connectors Short Spring Plate
Squib
Connectors Short Spring Plate
When Connector is Disconnected
- Short Spring Plate Contacting Male Terminal
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1 1 i |
Closed Circuit HINT: The type of connector is shown in the diagram on the previous page. Warning Light Warning Light Disconnection 'Defection Pin Airbag Sensor Assembly (3) Electrical Connection Check Mechanism This mechanism electrically checks that connectors are connected correctly and completely. The electrical connection check mechanism is designed so that the disconnection detection pin connects with the diagnosis terminals when the connector housing lock is locked. ►Half Connection »Complete Connection Terminal for Diagnosis »Complete Connection Terminal for Diagnosis
HINT: The illustration shows connectors "1", "2" and "3" in step 11. Power Source Sating Sensor Squibs Fig.2 Deceleration Sensor Z14034(b) When the vehicle is involved in a frontal collision in the hatched area (Fig. 1) and the shock is larger than the predetermined level, the SRS is activated automatically. A sating sensor is designed to go on at a smaller deceleration rate than the airbag sensor. As illustrated in Fig. 2, ignition is caused when current flows to the squib, which happens when a safing sensor and the deceleration sensor go on simultaneously. When a deceleration force acts on the sensors, 2 squibs in the driver airbag and front passenger airbag ignite and generate gas. The gas discharging info the driver airbag and front passenger airbag rapidly increases the pressure inside the bags, breaking open the steering wheel pad and instrument panel. Bag inflation then ends, and the bags deflate as the gas is discharged through discharge holes at the bag's rear or side. Z14034
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Do It Yourself Car Diagnosis
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