Kia Sportage 2008 Manual page 167

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(2) Is the measured resistance within specification?
► Go to next step.
► Repair or replace the wiring harness between the CAB and the SRSCM.
5. CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
(1) Install the DAB module and connect the DAB connector.
(2) Connect the connectors of the PAB, SAB, CAB, BPT, BUPT, FIS and SIS.
(3) Connect the SRSCM connector.
(4) Connect the negative (­) terminal to the battery.
(5) Connect a Hi­Scan(Pro) to the data link connector.
(6) Turn the ignition switch to ON.
(7) Clear the DTC stored in the SRSCM memory with the Hi­Scan(Pro).
(8) Turn the ignition switch to LOCK and wait for at least 30 seconds.
(9) Turn the ignition switch to ON and wait for at least 30 seconds.
(10) Check the vehicle again with the Hi­Scan(Pro).
Does the above DTC(s) go off?
► Problem is intermittent or was repaired and SRSCM memory was not cleared.
►Replace the SRSCM with a new one, and then check the vehicle again. At this time, if the vehicle normally
operates with a new SRSCM, the fault may be the SRSCM(Replace SRSCM).
Restraint > Troubleshooting > B1478
DTC Description
The CAB squib circuit consists of the SRSCM and CAB. It causes the SRS to deploy when the SRS deployment
conditions are satisfied. The above DTC is recorded when the CAB resistance too high or low is detected in the CAB
squib circuit.
DTC Detecting Condition
DTC
B1473
• Too high or low resistance between CAB high(+) and CAB low (­)
B1474
• Curtain Airbag (CAB) Malfunction
B1477
• SRSCM Malfunction
B1478
Specification
CAB resistance : 1.5 ≤ R ≤ 5.7 Ω
Schematic Diagram
https://www.kiatechinfo.com/viewer/toc_print.asp?vehicletype=Passenger&mfrcode=KM&area=KM...
Condition Probable cause
• Open or short circuit on
wiring harness
• Curtain Airbag (CAB)
squib
• SRSCM
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