Driver Airbag (DAB) Module and Clock Spring

Components and Component Location

Components

1. Driver Airbag (DAB) 2. Steering Wheel

3. Clock Spring

Description and Operation

Description

The Driver Airbag (DAB) is installed in the steering wheel and is electrically connected to the SRSCM through the clock spring. It protects the driver by deploying in a frontal collision. The SRSCM determines deployment of the Driver Airbag (DAB).

Never attempt to measure the resistance of the airbag module circuit (squib), even when using the specified tester. If the circuit resistance is measured with a tester, accidental airbag deployment may cause serious injury.

Repair Procedures

Inspection

Driver Airbag (DAB) If any inappropriate parts are found during the following inspection, replace the airbag module with a new one.

Never attempt to measure the resistance of the airbag module circuit (squib), even when using the specified tester. If the circuit resistance is measured with a tester, accidental airbag deployment may cause serious injury.

1. 1
   Inspect the pad cover for dents, cracks, or deformation.
2. 2
   Inspect the airbag module for dents, cracks, or deformation.
3. 3
   Check the hooks and connectors for damage, the terminals for deformation, and the harness for bends.
4. 4
   Inspect the airbag inflator housing for dents, cracks, or deformation.

   

5. 5
   If any unsuitable parts are found during inspection, replace the clock spring with a new one.
6. 6
   Inspect the connectors and protective tube for damage, and terminals for deformation.

   

   

Clock Spring

Removal

1. 1
   Set the front wheels in the straight-ahead position.
2. 2
   Disconnect the negative battery cable and wait at least three minutes before starting work.
3. 3
   Insert a flat-tip tool (Ø5 mm) into the guide hole located at the bottom of the steering wheel and press the DAB retaining pin.

   

4. 4
   Insert a flat-tip tool (Ø5 mm) into the guide hole located at the left/right of the steering wheel and press the DAB retaining pin.

   

   Insert the tool (A) and press the DAB retaining pin (B) in the direction of the arrow as shown in the illustration below.

5. 5
   Release the connector lock (A), then disconnect the DAB connector (C) and horn connector (B).

   

6. 6
   Remove the steering wheel. (Refer to Steering System - "Steering Column and Shaft")
7. 7
   Loosen the steering column shroud panel. (Refer to Body - "Steering Column Shroud Panel")
8. 8
   Disconnect the clock spring connector (A) and horn connector (B), then remove the clock spring.

   

Installation

1. 1
   Set the front wheels in the straight-ahead position.
2. 2
   Turn the ignition off.
3. 3
   Disconnect the negative battery cable from the battery and wait at least three minutes before starting work.
4. 4
   Connect the clock spring harness connector and the horn harness connector to the clock spring.
5. 5
   The clock spring factory setting is neutral.

   1. If the white cable is visible through the neutral position check window at the 10 o'clock mark, the spring is in the neutral position.
   2. If the white cable is not visible through the neutral position check window at the 10 o'clock mark, check the window, then manually adjust the setting to the neutral position.

   Neutral Check Window: Normal	Neutral Check Window: Malfunction
   White cable is visible through the 10 o'clock neutral check window	White cable is not visible through the 10 o'clock neutral check window

6. 6
   Manual Neutral Position Adjustment Procedure of Clock Spring

   1. Press the Auto Lock button at the 6 o'clock position and turn clockwise 3 turns.

      

   2. Press the Auto Lock button at the 6 o'clock position and turn it counterclockwise 3 turns.
   3. If the white cable is visible through the 10 o'clock neutral check window, the spring is set to the neutral position.

      

7. 7
   Install the steering column shroud and the steering wheel. (Refer to Steering System - "Steering Column and Shaft")
8. 8
   Connect the driver airbag module (DAB) connector and the horn connector, then install the driver airbag module (DAB) on the steering wheel.
9. 9
   Connect the negative battery cable.
10. 10
    After installing the airbag, check that the system operates correctly:

    • Turn the ignition ON; the SRS indicator should illuminate for about six seconds and then go off.
    • Check that the horn button operates.