Passenger Air bag module (hereinafter referred to PAB) located at passenger side crush pad protects passenger by reducing impact of collision. PAB is consist of air bag, pat cover and inflator. There are power,circuit for ignition, gas generator and diffuser screen in inflator. Air bag reduces impact of collision by fillied up gas. Inflator keeps gas and uses it to deploy air bag on collision.
Never measure resistance of PAB directly, Current of measuring device may cause unexpected air bag deploy.
The SRSCM sets DTC B1353 if the measured resistance value of PAB circuit is less than the threshold value.
*In this case, SRSCM checks if there’s any fault in circuit by sending current for a while
Item | Detecting Condition | Possible Cause | |
DTC Strategy | ● Check Resistance | ● Poor connection of connected part. ● Poor connection between shorting bar and release pin. ● Faulty PAB. ● Faulty SRSCM. | |
Enable Conditions | ● Ignition "ON" | ||
Threshold Value | ● PAB resistance ≤ 1.1Ω | ||
Diagnostic Time | Qualification | ● More than 1 sec | |
De-Qualification | ● More than 2 sec | ||
Test Condition | Resistance |
Ignition ON | 1.6Ω＜ PAB resistance ＜ 4.7Ω |
