Toyota Tacoma manuals

Toyota Corolla Repair Manual: Precaution

Caution

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Notice

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1. Srs connectors

  1. 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 goldplated terminals.

  1.  Terminal twinlock mechanism: each connector has a twopiece 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.

Hint:

Hint

: the type of connector is shown in the diagram on the previous page.

  1.  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.

Hint:

Hint

: the connectors shown in this illustration are connectors, 1, 2, 3 and 4 in step 1.

  1.  Half connection prevention mechanism: if the connector is not completely connected, the connector is disconnected due to the spring operation to the extent that no continuity exists.

  1. Connector lock mechanism: locking the connector lock button securely connects the connector.

  1. 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 safing 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 into the driver airbag and front passenger airbag rapidly increases the pressure inside the bags, breaking open the horn button assy and instrument panel. Bag inflation then ends, and the bags deflate as the gas is discharged through discharge holes at the bags rear or side.

2. Disconnection of connector front seat airbag assy

  1. Place a finger on the slider.
  2.  slide the slider to release lock.
  3.  disconnect the connector.

3. Connection of connector for front seat airbag assy

3. Connection of connector for front seat airbag assy

  1.  align a lock part of male connector and a slider of female connector in the same direction as shown in the illustration, fit in them without rubbing.
  2.  be sure to insert until they are locked. After fitting in, pull them slightly to check that they are locked.

    (When locked, make sure that the outer returns to its original position and sound at the time of fitting in can be heard.)

Hint

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4. Disconnection of airbag front sensor and side airbag sensor

4. Disconnection of airbag front sensor and side airbag sensor

  1.  while holding both flank sides of the outer, slide the outer in the direction shown by an arrow.
  2.  release the lock of the connectors, then disconnect the connectors.

Hint

: be sure to hold both flank sides of the outer. If holding the top and bottom sides, it will obstruct disconnection.

5. Connection of connectors for airbag front sensor and side airbag sensor

5. Connection of connectors for airbag front sensor and side airbag sensor

  1.  align the male connector (on the side of sensor) with female connector in the same direction as shown in the illustration and fit them in without rubbing.
  2.  as they are fitted in, the outer slides rearward. Press it until the outer returns to its original position again.

    If fitting stops half way, connectors will separate.

  3.  be sure to insert until they are locked. After fitting in, pull them slightly to check that they are locked.

    (When locked, make sure that the outer returns to its original position and sound at the time of fitting in can be heard.)

Hint

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Onvehicle inspection

Supplemental restraint systems
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Onvehicle inspection
1. Horn button assy (vehicles not involved in collision) Check the diagnostic system . visually check the following item with the horn button assy (with airbag) installed in the vehicle. ...

Other materials:

Using the steering wheel switches
The steering wheel switches can be used to operate a connected cellular phone. Operating a telephone using the steering wheel switches ■ Steering wheel switches on the right hand side 1 Off hook switch Make a call Receive a call Display Phone screen 2 On hook switch End a cal ...

Vehicle information
This screen can be used to display the fuel consumption. Trip Information or Past Record screen Press CAR to display the Trip Information or Past Record screen. Fuel consumption ■ Trip information If the Trip Information screen does not appear, select Trip Information. 1 Av ...

Circuit description
This circuit turns on the magnetic clutch inside the actuator during cruise control operation according to the signal from the ecu. If a malfunction occurs in the actuator or speed sensor, etc. During cruise control operation, the rotor shaft between the motor and control plate is released. ...

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