Driver Airbag (DAB) Module and Clock Spring

Description and Operation

Description

• Driver Airbag (DAB)

  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 the airbag in a frontal collision. The SRSCM determines deployment of the driver airbag (DAB).

• Clock Spring

  This is the delivery equipment that supplies the operating signal generated by the front and side sensors to the airbag module (gas generator) board through the internal cable.

  It also supplies the operating signal of the remote control switch on the steering wheel and the signal to the corresponding system through the internal cable.

Components and Component Location

Components

Repair Procedures

Removal

1. 1

   Before removing the steering wheel, set the front wheels in the straight-ahead position.

2. 2

   Disconnect the negative battery cable.

3. 3

   While turning the steering wheel left and right, press the parts marked A (3 red dashed circles) under the steering wheel, then remove the airbag module.

   

4. 4

   After disconnecting the horn connector (A) and the airbag module connector (B), remove the airbag module from the steering wheel.

   

5. 5

   Remove the steering wheel.

   (Refer to Steering System - "Steering Wheel")

6. 6

   Loosen the screws (A) and remove the steering column cover.

   

7. 7

   After disconnecting the clock spring connectors (A), remove the clock spring.

   

Installation

1. 1

   Before installing the steering wheel, set the front wheels in the straight-ahead position.

2. 2

   The clock spring factory setting is neutral.

3. 3

   Center the clock spring before installing it on the steering wheel.

   1. Press the automatic lock button located at the 6 o'clock position, and turn it clockwise until it stops.

      

   2. Press the automatic lock button located at the 6 o'clock position, and turn it approximately 3.4 turns counterclockwise to align the neutral mark (A).

      • If the white cable is visible through the 10 o'clock neutral check window, the clock spring is set to the neutral position.

        

4. 4

   Install onto the steering column after confirming that the clock spring is in the neutral range.

5. 5

   Connect the clock spring harness connector and the horn harness connector to the clock spring.

6. 6

   Install the steering column cover and the steering wheel.

7. 7

   Connect the driver airbag (DAB) module connector, then install the driver airbag (DAB) module onto the steering wheel.

8. 8

   Connect the negative battery cable.

9. 9

   After installing the airbag module is complete, turn the steering wheel fully left and right, then check that the steering wheel remote control, airbag system, and horn operate normally.

Inspection

Airbag Module

If any inappropriate parts are found during the following inspection, replace the airbag module with a new one.

1. 1

   Inspect the airbag module for dents, cracks, or deformation.

2. 2

   Check the hooks and connectors for damage, the terminals for deformation, and the binding tape.

3. 3

   Inspect the airbag inflator housing for dents, cracks, or deformation.

Clock Spring

1. 1

   If at least one abnormality is found in the following inspections, replace the clock spring with a new one.

2. 2

   Inspect the connectors and protective tube for damage, and terminals for deformation.

   

   

Troubleshooting

Troubleshooting