DTC B2296

id080200802400

DTC B2296

Crash zone sensor (communication error, internal circuit abnormal)
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.
•  Malfunction in the wiring harness between the crash zone sensor and SAS control module
•  Malfunction in the crash zone sensor circuit
POSSIBLE CAUSE
•  Crash zone sensor connector malfunction
•  Crash zone sensor malfunction
•  Open circuit or short to ground in the wiring harness between the crash zone sensor and SAS control module
•  Open circuit or power supply short in the wiring harness between the crash zone sensor and SAS control module
•  SAS control module malfunction

Diagnostic procedure

Step

Inspection

Action
1
INSPECT CRASH ZONE SENSOR CONNECTOR
•  Turn the ignition switch to the LOCK position.
•  Disconnect the negative battery cable and wait for 1 min or more.
•  Disconnect the crash zone sensor connector.
•  (See CRASH ZONE SENSOR REMOVAL/INSTALLATION.)
•  Inspect the crash zone sensor connector. (Corrosion, damage, and disconnected pins)
•  Is there any malfunction of the crash zone sensor connector?
Yes
Replace the crash zone sensor wiring harness.
No
Go to the next step.
2
INSPECT WIRING HARNESS BETWEEN SAS CONTROL MODULE AND CRASH ZONE SENSOR
•  Disconnect all SAS control module connectors.
•  Inspect the wiring harnesses between SAS control module terminal 1B and crash zone sensor terminal A, SAS control module terminal 1C and crash zone sensor terminal B for the following:
―  Short to body ground
―  Open circuit
•  Is the wiring harness normal?
Yes
Replace the crash zone sensor, then go to the next step.
(See CRASH ZONE SENSOR REMOVAL/INSTALLATION.)
No
Replace the wiring harness between the SAS control module and the crash zone sensor.
3
INSPECT THE WIRING HARNESS BETWEEN THE SAS CONTROL MODULE AND CRASH ZONE SENSOR FOR A SHORT CIRCUIT TO THE POWER SUPPLY
•  Connect the negative battery cable.
•  Turn the ignition switch to the ON position.
•  Measure the voltage of SAS control module connector terminals 1B and 1C.
Note
•  Measure the voltage while shaking the wiring harness between the SAS control module and crash zone sensor.
•  Is the voltage measured?
Yes
Replace the wiring harness between the SAS control module and the crash zone sensor.
No
Replace the crash zone sensor, then go to the next step.
(See CRASH ZONE SENSOR REMOVAL/INSTALLATION.)
4
PERFORM DTC INSPECTION
•  Disconnect the negative battery cable and wait for 1 min or more.
•  Connect the crash zone sensor connector.
•  Connect the SAS control module connectors.
•  Connect the negative battery cable.
•  Perform the DTC inspection for the SAS control module using the M-MDS.
(See DTC DISPLAY.)
•  Are DTCs B2296 displayed?
Yes
Replace the SAS control module.
(See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
No
DTC troubleshooting completed.