B1511
DTC B1511 DRIVER SEAT BUCKLE SWITCH OPEN/SHORT TO BATTERYCIRCUIT DESCRIPTION
This system decides whether the seat position of the driver or passenger are locked and then prevent the belt pretensioner from deploying on crash.
INSPECTION PROCEDURE
1. Preparation
1. Disconnect the negative (-) terminal cable from the battery, and wait at least 30 seconds.
2. Remove the DAB module.
3. Disconnect the connectors of the PAB, left and right side airbags, belt pretensioners and satellite sensors.
4. Disconnect the connector of the SRSCM.
CAUTION: Place the DAB with the front surface facing upward.
2. Check buckle switch sensor circuit (Short to GND/Battery).
[CHECK]
Measure the voltage and resistance of the seat track position sensor high and body ground between the SRSCM connector and the seat track position sensor connector.
Resistance:
Voltage: 0 V
[NG]-> Repair or replace the harness between the SRSCM and the seat belt switch.
[OK]->
3. Check the seat belt switch.
[CHECK]
Check the resistance with the switch on and off.
Buckled: 4.5 mA < I < 5.5 mA (R = 1000 Ohms ± 10%)
Unbuckled: 11.3 mA < I <13.8 mA (R = 400 Ohms ± 10%)
[NG]-> Replace the seat belt switch
[OK]-> From the results of the above inspection the malfunctioning part can now be considered normal.
4. Check the seat buckle switch (Defect).
[PREPARATION]
1. Turn the ignition switch to LOCK.
2. Disconnect the negative (-) terminal cable from the battery, and wait for 30 seconds.
3. Connect the seat buckle switch connector.
4. Connect the negative (-) terminal cable to the battery, and wait for 30 seconds.
[CHECK]
1. Turn the ignition switch to ON, and wait for at least 30 seconds.
2. Clear the malfunction code stored in the memory of the Hi-Scan Pro.
3. Turn the ignition switch to LOCK, and wait for 30 seconds.
4. Turn the ignition switch to ON, and wait for 30 seconds.
5. Using the Hi-Scan Pro, check for DTCs. Them is no DTC.
[HINT]
Codes other than these may be output at this time, but they are not relevant to this check.
[NG]-> Replace the Seat buckle switch.
[OK]-> From the results of the above inspection, the malfunctioning part can now be considered normal.