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. 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 B1351 if the measured resistance value of PAB circuit is more 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 >1k? (Fault definitely detected)
? Tolerance band : 100?= Rs = 1k? (Fault may or may not be detected)
Diagnostic Time
Qualification
? More than 4 sec
De-Qualification
? More than 8 sec
Test Condition
Resistance
Ignition ON
1.6?< PAB resistance < 4.84?