DTC B2444

id080200807300

System Malfunction Location

• Driver-side side air bag sensor (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.

• The driver-side side air bag sensor monitors the scale of an impact. If the crash event is severe enough for the driver-side side air bag module to operate (deploy), the sensor will signal the SAS control module to operate (deploy) the driver-side side air bag. The SAS control module monitors signals which are not within the specification to the driver-side side air bag sensor. If the SAS control module receives a signal from the driver-side side air bag sensor which indicates improper installation of the sensor, it will store DTC B2444 in memory and output a pattern 48 flash to the air bag system warning light.

Possible Cause

• Driver-side side air bag sensor damage

Diagnostic Procedure

STEP

INSPECTION

ACTION

1

Turn the ignition switch to the LOCK position.

Connect the M-MDS.

Turn the ignition switch to the ON position.

Using the M-MDS, verify the DTCs and record the past malfunction DTCs.

Is the present malfunction DTC B2444 displayed?

Yes

Note

• Indicates a hard malfunction. The malfunction is still present. This malfunction cannot be cleared until it is corrected and the DTC is no longer displayed.

Replace the driver-side side air bag sensor. (See DRIVER-SIDE SIDE AIR BAG SENSOR REMOVAL/INSTALLATION.)

After replacement, go to the next step.

No

Intermittent malfunction. The malfunction is not present at this time.

Replace the driver-side side air bag sensor. (See DRIVER-SIDE SIDE AIR BAG SENSOR REMOVAL/INSTALLATION.)

After replacement, go to the next step.

2

Refer to the past malfunction DTCs recorded during Step 1.

Was any past malfunction DTC displayed during Step 1?

Yes

If any DTC is displayed, refer to the DTC table, and repair the malfunctioning part according to the DTC inspection.

No

DTC inspection completed. Clear all DTCs.

STEP	INSPECTION		ACTION
1	Turn the ignition switch to the LOCK position. Connect the M-MDS. Turn the ignition switch to the ON position. Using the M-MDS, verify the DTCs and record the past malfunction DTCs. Is the present malfunction DTC B2444 displayed?	Yes	Note • Indicates a hard malfunction. The malfunction is still present. This malfunction cannot be cleared until it is corrected and the DTC is no longer displayed. Replace the driver-side side air bag sensor. (See DRIVER-SIDE SIDE AIR BAG SENSOR REMOVAL/INSTALLATION.) After replacement, go to the next step.
1		No	Intermittent malfunction. The malfunction is not present at this time. Replace the driver-side side air bag sensor. (See DRIVER-SIDE SIDE AIR BAG SENSOR REMOVAL/INSTALLATION.) After replacement, go to the next step.
2	Refer to the past malfunction DTCs recorded during Step 1. Was any past malfunction DTC displayed during Step 1?	Yes	If any DTC is displayed, refer to the DTC table, and repair the malfunctioning part according to the DTC inspection.
2		No	DTC inspection completed. Clear all DTCs.