Driver Airbag (DAB) Module and 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 the airbag in a frontal collision. The SRSCM determines when the driver airbag (DAB) deploys.

Components and Component Location

Components

Repair Procedures

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 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.

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.

   

   

Removal

1. 1

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

2. 2

   Disconnect the negative battery terminal and wait at least three minutes before starting work.

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

   Disconnect the airbag connector (A) and the horn connector (B).

   

5. 5

   Remove the steering wheel.

   (Refer to Steering System - "Steering Column and Shaft")

6. 6

   Remove the upper steering column cover (A).

   

7. 7

   Loosen the screws and remove the lower cover (A).

   

8. 8

   Disconnect the clock spring connector (A) from the horn wire harness connector (B) in the clock spring.

   

9. 9

   Remove the clock spring (A).

   

Installation

1. 1

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

2. 2

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

3. 3

   The clock spring factory setting is neutral.

   1. If the white cable is visible through the neutral check window, the clock 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

4. 4

   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.

      

5. 5

   Install the steering column cover and the steering wheel.

   (Refer to Steering System - "Steering Column and Shaft")

6. 6

   Connect the driver airbag module (DAB) connector and the horn connector, then install the driver airbag module (DAB) on the steering wheel.

7. 7

   Connect the negative battery cable.

8. 8

   After installing the airbag, check that the system operates correctly:

   • Turn the ignition ON; the SRS indicator should illuminate for about six seconds, then go off.

   • Check that the horn button operates.