Passenger Curtain Airbags(PCAB) ,which are inside of left and right sides of headliner, protect driver at a broadside collision. SIS, which are inside of left and right sides of B-pillars, senses impact from collision at this moment. Based on the signal from SIS, SRSCM decides to deploy Curtain Airbag or not.
The PCAB(Passenger curtain airbag) squib circuit consists of the SRSCM, PCAB. If it causes the airbag to deploy when the airbag deployment conditions are satisfied. The above DTCs are recorded when the resistance too high is detected in the PCAB squib circuit.
Item
Detecting Condition
Possible Cause
DTC Strategy
? Check current
? Short PCAB circuit.
? Faulty PCAB.
? Faulty SRSCM.
Enable Conditions
? Ignition "ON"
Threshold Value
? PCAB resistance = 1.1 ?
? Tolerance band : 1.1 ? < Rs < 1.6 ?
Diagnostic Time
Qualification
? More than 1 sec
De-Qualification
? More than 2 sec
Test Condition
DCAB circuit resistance(O)
Ignition OFF
1.9 ? < Rs < 2.7 ?