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 B1333 if there is any fault in Passenger side front impact sensor
Item | Detecting Condition | Possible cause | |
DTC Strategy |
•
Check Data |
•
Poor connection of connected part.
•
Faulty PFIS.
•
Faulty SRSCM. | |
Enable Conditions |
•
Ignition "ON" | ||
Threshold Value |
•
PFIS send defect code
•
PFIS output is not expected value | ||
Diagnostic Time | Qualification |
•
Ini(Start Up):100 ms (500μs x 20)
•
Steady:1s (10ms x 100) | |
De-Qualification |
•
Ini(Start Up):IGN off -> on
•
Steady:IGN off -> on | ||
