Kia Sedona (2008 year). Instruction — part 72

Refer to TERMINAL & CONNECTOR INSPECTION.

INSPECTION PROCEDURE

1. PREPARATION

Refer to PREPARATION OF INSPECTION.

2. CHECK CAB RESISTANCE

1. Connect the Dummy and the Dummy Adapter on CAB harness connector.

2. Measure resistance between the terminal 7 (6) and 8 (5) of SRSCM harness connector (B).

Specification (resistance): 1.6-4.7 ohms

Fig. 82: Checking CAB Resistance

3. Is the measured resistance within specification?

YES



Replace the Curtain Airbag (CAB) module.

NO



Check open circuit.

3. CHECK OPEN CIRCUIT

1. Measure resistance between the terminal 1 of CAB harness connector and the terminal 7 (6) of

SRSCM harness connector (B).

2. Measure resistance between the terminal 2 of CAB harness connector and the terminal 8 (5) of

CAUTION: Never attempt to measure the circuit resistance of the airbag module

(squib) even if you are using the specified tester.

2008 Kia Sedona EX

2008 RESTRAINTS Troubleshooting (Airbag) - Sedona

Microsoft

Monday, May 24, 2010 3:55:02 PM

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SRSCM harness connector (B).

Specification (resistance): below 1 ohms

Fig. 83: Checking Open Circuit

3. Is the measured resistance within specification?

YES



Check short circuit.

NO



Repair or replace the wiring harness between the CAB and the SRSCM.

4. CHECK SHORT CIRCUIT

1. Measure resistance between the terminal 1 and 2 of CAB harness connector.

Specification (resistance): infinite

Fig. 84: Checking Short Circuit

2. Is the measured resistance within specification?

2008 Kia Sedona EX

2008 RESTRAINTS Troubleshooting (Airbag) - Sedona

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YES



Go to next step.

NO



Repair or replace the wiring harness between the CAB and the SRSCM.

5. CLEAR THE DTC AND CHECK THE VEHICLE AGAIN

Refer to CLEAR THE DTC AND CHECK THE VEHICLE AGAIN.

DTC B1724 CURTAIN AIRBAG [REAR-DRIVER] CIRCUIT SHORT TOO LOW TO GROUND; DTC
B1728 CURTAIN AIRBAG [REAR-PASSENGER] CIRCUIT SHORT TOO LOW TO GROUND

DTC DESCRIPTION

The CAB squib circuit consists of the SRSCM and CAB. The above DTC is recorded when short to ground is
detected in the CAB squib circuit.

DTC DETECTING CONDITION

DTC DETECTING CONDITION

SCHEMATIC DIAGRAM

DTC

Condition

Probable cause

B1724
B1728



Short to ground between CAB and
SRSCM



Curtain Airbag (CAB) Malfunction



SRSCM Malfunction



Short to ground circuit on wiring
harness



Curtain Airbag (CAB) squib



SRSCM

2008 Kia Sedona EX

2008 RESTRAINTS Troubleshooting (Airbag) - Sedona

Microsoft

Monday, May 24, 2010 3:55:02 PM

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© 2006 Mitchell Repair Information Company, LLC.

Fig. 85: Curtain Airbag - Schematic Diagram

TERMINAL & CONNECTOR INSPECTION

Refer to TERMINAL & CONNECTOR INSPECTION.

INSPECTION PROCEDURE

1. PREPARATION

Refer to PREPARATION OF INSPECTION.

2. CHECK SHORT TO GROUND

1. Measure resistance between the terminal 1 of CAB harness connector and chassis ground.

Specification (resistance): infinite

2008 Kia Sedona EX

2008 RESTRAINTS Troubleshooting (Airbag) - Sedona

Microsoft

Monday, May 24, 2010 3:55:02 PM

Page 94

© 2006 Mitchell Repair Information Company, LLC.