The driver seat buckle switch circuit consists of the SRSCM, the driver seat inner belt assy. When the buckle switch is unlocked, the driver side airbag and the accident pretensioner will not operate to save parts and reduce repair cost.
The seat buckle switch circuit consists of the SRSCM and seat buckle switch. The above DTCs are recorded when the short to battery is detected in the driver seat buckle switch circuit.
Item
Detecting Condition
Possible Cause
DTC Strategy
? Check current
? Short to battery in switch circuit.
? Faulty driver seat belt switch
? Faulty SRSCM.
Enable Conditions
? Ignition "ON"
Threshold Value
? Buckled : 905 ? > Driver seat belt switch resistance > 1,106 ?
? Buckled : 361 ? > Driver seat belt switch resistance > 442 ?
Diagnostic Time
Qualification
? More than 4 sec
De-Qualification
? More than 9.6 sec
The SRS current measuring can be cause of component malfunction. So the current value is not mentioned in Threshold value to prohibit measuring the current.
Tolerance band : It is unstable band that ECM detects the failure or not to do.
Stauts
Belt switch resistance
Buckled
1,006? ± 10%
Unbuckled
402? ± 10%