Every air bag module has its firing circuit to deploy air bag according to signal of SRSCM.
SRSCM checks every air bag module when ignition "ON". Once any fault is detected, it is erased only by scantool.
The SRSCM sets DTC B1395 if there’s any short circuit in harness of every firing circuit to one another.
Item | Detecting Condition | Possible cause | |
DTC Strategy | ● Check current(PWM type) | ● short circuit in squib harness. ● SRSCM. | |
Enable Conditions | ● Ignition "ON" | ||
Threshold Value | ● Only check during start-up phase | ||
Diagnostic Time | Qualification | ● More than 1 sec | |
De-Qualification | ● N/A |