The seat belt buckle switch (Driver side/LH) circuit consists of the SRSCM(Airbag control module) and front Driver seat inner belt assy. In event of accident, Pretensioner and passenger’s side airbags will not operate when the buckle switch are unlocked, to save parts and reduce repair cost.
DTC B1511 is recorded when a malfunction is detected in the seat belt buckle switch (LH) circuit.(Open or short to battery)
Item
Detecting Condition
Possible Cause
DTC Strategy
? Detect system voltage
? Front Driver seat belt buckle assy
? Wiring harness
? SRSCM (Airbag Control Module)
Enable Conditions
? Ignition "ON", Engine "ON"
Threshold Value
? Open or Short to battery(RSB+ =10KO)
Diagnostic Time
Qualification
? 2 sec remaining
De-Qualification
?10 sec remaining
Test Condition
Voltage (V)
Ignition ON