DTC B10FD:11/B10FD:13/B10FD:87/B10FD:96


id080200847100

System malfunction location

•  B10FD:11: Driver-side side air bag sensor circuit short to body ground or power supply
•  B10FD:13: Driver-side side air bag sensor circuit open circuit or resistance high
•  B10FD:87: Signal reception error from driver-side side air bag sensor
•  B10FD:96: Driver-side side air bag sensor internal malfunction
Detection condition
Warning
•  Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection according to only the detection conditions may cause injury due to an operating error, or damage the system. When performing an inspection, always follow the inspection procedure.
•  Wiring harness between the driver-side side air bag sensor and SAS control module has a malfunction
•  Driver-side side air bag sensor has a malfunction
Fail-safe function
Not applicable
Possible cause
•  Driver-side side air bag sensor connector malfunction
•  Short circuit to power supply or body ground in the wiring harness between the driver-side side air bag sensor and SAS control module
•  Open circuit in the wiring harness between the driver-side side air bag sensor and SAS control module
•  Driver-side side air bag sensor malfunction
•  SAS control module malfunction


Diagnostic Procedure

Step

Inspection

Action

1
INSPECT DRIVER-SIDE SIDE AIR BAG SENSOR CONNECTOR
Warning
•  Handling the component parts improperly can accidentally operate (deploy) the air bag module, which may seriously injure you. Read the service warnings/cautions and the workshop manual before handling the air bag system components.
•  Switch the ignition off.
•  Remove the driver-side B-pillar lower trim.
•  Disconnect the driver-side side air bag sensor connector.
•  Inspect the driver-side side air bag sensor connector. (Corrosion, damage, and disconnected pins)
•  Is there any malfunction of the driver-side side air bag sensor connector?
Yes
Replace the malfunctioning part, then go to Step 5.
No
Go to the next step.
2
INSPECT DRIVER-SIDE SIDE AIR BAG SENSOR CIRCUIT FOR SHORT TO GROUND
•  Remove the column cover.
•  Disconnect the clock spring connector.
•  Remove the glove compartment.
•  Disconnect the passenger-side air bag module connector.
•  Disconnect the driver and passenger-side front seat connector.
•  Remove the B-pillar lower trim.
•  Disconnect the driver and passenger-side pre-tensioner seat belt connector.
•  Remove the headliner.
•  Disconnect the driver and passenger-side curtain air bag module connector.
•  Disconnect the all SAS control module connectors.
•  Inspect for continuity between the following terminals (wiring harness-side) and body ground:
―  SAS control module terminal 1O (Type A)/1AD (Type B)
―  SAS control module terminal 1N (Type A)/1AF (Type B)
Note
•  Inspect for continuity while shaking the wiring harness between the SAS control module and driver-side side air bag sensor.
•  Is there continuity?
Yes
Refer to the wiring diagram and verify whether or not there is a common connector between SAS control module terminal and driver-side side air bag sensor terminal.
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
•  Replace the malfunctioning part.
If there is no common connector:
•  Replace the wiring harness which has a short to ground.
Go to Step 5.
No
Go to the next step.
3
INSPECT DRIVER-SIDE SIDE AIR BAG SENSOR CIRCUIT FOR OPEN CIRCUIT
•  Driver-side side air bag sensor and SAS control module connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side):
―  Driver-side side air bag sensor terminal A—SAS control module terminal 1O (Type A)/1AD (Type B)
―  Driver-side side air bag sensor terminal B—SAS control module terminal 1N (Type A)/1AF (Type B)
Note
•  Inspect for continuity while shaking the wiring harness between the SAS control module and driver-side side air bag sensor.
•  Is there continuity?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between SAS control module terminal and driver-side side air bag sensor terminal.
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
•  Replace the malfunctioning part.
If there is no common connector:
•  Replace the wiring harness which has an open circuit.
Go to Step 5.
4
INSPECT DRIVER-SIDE SIDE AIR BAG SENSOR CIRCUIT FOR SHORT TO POWER SUPPLY
•  Driver-side side air bag sensor and SAS control module connectors are disconnected.
•  Switch the ignition ON (engine off or on).
•  Measure the voltage at the following terminals (wiring harness-side):
―  SAS control module terminal 1O (Type A)/1AD (Type B)
―  SAS control module terminal 1N (Type A)/1AF (Type B)
Note
•  Measure the voltage while shaking the wiring harness between the SAS control module and driver-side side air bag sensor.
•  Is the voltage 0 V?
Yes
Replace the driver-side side air bag sensor, then go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between SAS control module terminal and driver-side side air bag sensor terminal.
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.
•  Replace the malfunctioning part.
If there is no common connector:
•  Replace the wiring harness which has a short to power supply.
Go to the next step.
5
PERFORM SAS CONTROL MODULE DTC INSPECTION
•  Switch the ignition off.
•  Disconnect the negative battery cable and wait for 1 min or more.
•  Connect the SAS control module connectors.
•  Reconnect all disconnected connectors.
•  Switch the ignition ON (engine off or on).
•  Clear the DTC for the SAS control module using the M-MDS.
•  Perform the DTC inspection for the SAS control module using the M-MDS.
•  Are the same DTCs present?
Yes
Replace the SAS control module.
No
DTC troubleshooting completed.