Front Side Impact Sensor(FSIS) is located in both side of center pillar detects broad collision.
When SIS delivers collision signal to SRSCM, SRSCM checks if safing sensor located in SRSCM detects collusion.
and if both SIS and safing sensor detects collision simultaneously, SRSCM operates side air bag and curtain air bag.
If you strike or spin the SRSCM at the IG “ON” state, the seat-belt pretensioner, curtain-airbag or side-airbag could be unfolded and bring on danger. Handle it with care.
The SRSCM sets DTC B1405 if there is short to power harness in PSIS harness.
Item | Detecting Condition | Possible cause | |
DTC Strategy |
•
Check voltage |
•
Short to power in PSIS harness.
•
Faulty PSIS.
•
Faulty SRSCM. | |
Enable Conditions |
•
Ignition "ON" | ||
Threshold Value |
•
PSIS no acceleration data, and line voltage >11V | ||
Diagnostic Time | Qualification |
•
More than 1000ms (250ms x 4) | |
De-Qualification |
•
More than 400ms (50ms x 8) | ||
