Dqd Id

AlVXri

Disconnect connector between center airbag sensor assembly and spiral cable.

Measure resistance between D+, D- on spiral cable side of connector between spiral cable and steering wheel pad and body ground.

Resistance:

Repair or replace spiral cable.

Repair or replace harness or connector between center airbag sensor assembly and spiral cable.

Diag. Code

Short in Squib Circuit or Front Airbag Sensor Circuit (to +B)

CIRCUIT DESCRIPTION

The squib circuit consists of the center airbag sensor assembly, spiral cable and the steering wheel pad (squib). It causes the airbag to deploy when the airbag deployment conditions are satisfied. The front airbag sensor detects the deceleration force in a frontal collision and is located in the front fender on the left and right sides.

For details of the function of each component, see FUNCTION OF COMPONENTS on page AB-7.

Diagnostic code 12 is recorded when a +B short is detected in the squib circuit or the front airbag sensor circuit.

Code No.

Diagnosis

12

• Squib malfunction.

• Short circuit in front airbag sensor +S wire harness (to +B).

• Open circuit in RH and LH front airbag sensor harness.

• Spiral cable malfunction.

• Center airbag sensor assembly malfunction.

-DIAGNOSTIC CHART

1

Preparation.

2

i Check front airbag sensor circuit. (Measure resistance between terminals

NG

Go to Code 15(See page AB-60).

+SR and -SR, +SL and -SL of center air-bag sensor assembly connector.)

j OK

3

check front airbag sensor circuit. (Measure voltage between terminal +SR or +SL of center airbag sensor assembly connector and body ground.)

NG

r~Repair or replace harness or connector between center airbag sensor assembly

and front airbag sensor (See page AB-21 ).

OK

4

Check squib circuit.

NG

Go to step

:] OK

5

Check center airbag sensor assembly.

NG

Replace center airbag sen

sor assembly.

| OK

6

Check squib.

NG

Replace steering wheel pad.

OK

From the results of the above inspection, the malfunctioning part can now be considered normal. To make sure of this, use the simulation method to check.

7

Check spiral cable.

NG

Repair or replace spiral cable.

OK

Repair or replace harness or connector between center airbag sensor assembly and spiral cable.

Canlar Airbeg Senior Assembly

WIRING DIAGRAM

Stasnnfl Wheel Part

Squibp.

Spiral Cable

Front Airbag Sensor LH

Front Air bag H H

Canlar Airbeg Senior Assembly

P-Owir Sihiroo i

SafJng

Sernsûr

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