DTC B0094:11/B0094:13/B0094:87/B0094:96 [SAS CONTROL MODULE]

id0802g6000400

System malfunction location
•  B0094:11:Crash zone sensor circuit short to body ground
•  B0094:13:Crash zone sensor circuit open circuit or short to power supply
•  B0094:87:Signal reception error from crash zone sensor
•  B0094:96:Crash zone 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 crash zone sensor and SAS control module has a malfunction
•  Crash zone sensor has a malfunction
Fail-safe
Not applicable
Possible cause
•  Crash zone sensor connector malfunction
•  Open circuit in the wiring harness between the following terminals:
―  SAS control module terminal 3AB—crash zone sensor terminal A
―  SAS control module terminal 3X—crash zone sensor terminal B
•  Short circuit to body ground in the wiring harness between the following terminals:
―  SAS control module terminal 3AB—crash zone sensor terminal A
―  SAS control module terminal 3X—crash zone sensor terminal B
•  Short circuit to power supply in the wiring harness between the following terminals:
―  SAS control module terminal 3AB—crash zone sensor terminal A
―  SAS control module terminal 3X—crash zone sensor terminal B
•  Crash zone sensor malfunction
•  SAS control module malfunction


Diagnostic Procedure

Step

Inspection

Action
1
INSPECT CRASH ZONE 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.
•  Disconnect the negative battery cable and wait for 1 min or more. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].)(See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].)
•  Remove the front bumper. (See FRONT BUMPER REMOVAL/INSTALLATION.)
•  Disconnect the crash zone sensor connector. (See CRASH ZONE SENSOR REMOVAL/INSTALLATION.)
•  Inspect the crash zone sensor connector (wiring harness-side). (Corrosion, damage, and disconnected pins)
•  Is there any malfunction of the crash zone sensor connector (wiring harness-side)?
Yes
Replace the malfunctioning part, then go to Step 5.
No
Go to the next step.
2
INSPECT CRASH ZONE SENSOR CIRCUIT FOR SHORT TO GROUND
•  Remove the column cover. (See COLUMN COVER REMOVAL/INSTALLATION.)
•  Disconnect the clock spring connector. (See CLOCK SPRING REMOVAL/INSTALLATION.)
•  Remove the glove compartment. (See GLOVE COMPARTMENT REMOVAL/INSTALLATION.)
•  Disconnect the passenger-side air bag module connector. (See PASSENGER-SIDE AIR BAG MODULE REMOVAL/INSTALLATION.)
•  Disconnect the driver and passenger-side front seat connectors. (See FRONT SEAT REMOVAL/INSTALLATION.)
•  Remove the headliner. (See HEADLINER REMOVAL/INSTALLATION.)
•  Disconnect the driver and passenger-side curtain air bag module connectors. (See CURTAIN AIR BAG MODULE REMOVAL/INSTALLATION.)
•  Remove the B-pillar lower trim. (See B-PILLAR LOWER TRIM REMOVAL/INSTALLATION.)
•  Disconnect the driver and passenger-side pre-tensioner seat belt connectors.
•  Remove the rear console. (See REAR CONSOLE REMOVAL/INSTALLATION.)
•  Disconnect the all SAS control module connectors. (See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
•  Inspect for continuity between the following terminals (wiring harness-side) and body ground:
―  SAS control module terminal 3AB
―  SAS control module terminal 3X
Note
•  Inspect for continuity while shaking the wiring harness between the SAS control module and crash zone 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 crash zone 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 CRASH ZONE SENSOR CIRCUIT FOR OPEN CIRCUIT
•  Crash zone sensor and SAS control module connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side):
―  Crash zone sensor terminal A—SAS control module terminal 3AB
―  Crash zone sensor terminal B—SAS control module terminal 3X
Note
•  Inspect for continuity while shaking the wiring harness between the SAS control module and crash zone 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 crash zone 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 CRASH ZONE SENSOR CIRCUIT FOR SHORT TO POWER SUPPLY
•  Crash zone sensor and SAS control module connectors are disconnected.
•  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].)(See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].)
•  Switch the ignition ON (engine off or on).
•  Measure the voltage at the following terminals (wiring harness-side):
―  SAS control module terminal 3AB
―  SAS control module terminal 3X
Note
•  Measure the voltage while shaking the wiring harness between the SAS control module and crash zone sensor.
•  Is the voltage 0 V?
Yes
Replace the crash zone sensor, then go to the next step. (See CRASH ZONE SENSOR REMOVAL/INSTALLATION.)
No
Refer to the wiring diagram and verify whether or not there is a common connector between SAS control module terminal and crash zone 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.
•  Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].)(See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].)
•  Switch the ignition ON (engine off or on).
•  Clear the DTC for the SAS control module using the M-MDS. (See CLEARING DTC [SAS CONTROL MODULE].)
•  Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION [SAS CONTROL MODULE].)
•  Are the same DTCs present?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the SAS control module.
No
DTC troubleshooting completed.