Front Impact Sensor(FIS)located at both sides of the front of engine room detects head-on collision. When FIS delivers collision signal to SRSCM, SRSCM checks if safing sensor located in SRSCM detects collusion. and if both FIS and safing sensor detects collision simultaneously, SRSCM operates front air bag.
The SRSCM sets DTC B1335 if PFIS with wrong ID is detected.
Item | Detecting Condition | Possible cause | |
DTC Strategy | ● Check current(PWM type) | ● PFIS with wrong ID. ● Faulty SRSCM. | |
Enable Conditions | ● Ignition "ON" | ||
Threshold Value | ● PFIS sends the "Wrong ID" continously | ||
Diagnostic Time | Qualification | ● Less than 1 sec after SIS/FIS power on. | |
De-Qualification | ● On the Next ACU Ignition cycle. | ||
