Side Impact Sensor(SIS) 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.
The SRSCM sets DTC B1401 if there is a short to ground in DSIS harness.
Item | Detecting Condition | Possible Cause | |
DTC Strategy | ● Check current(PWM type) | ● Short to ground in DSIS harness. ● Faulty DSIS. ● Faulty SRSCM. | |
Enable Conditions | ● Ignition "ON" | ||
Threshold Value | ● Rs ＜ 60Ω | ||
Diagnostic Time | Qualification | ● More than 2 sec | |
De-Qualification | ● More than 4 sec | ||
Test Condition | resistance |
Ignition OFF | Rs ＞1kΩ |
