DTC B1128:55/B1129:55

id080200822900

System Malfunction Location

DTC

System Malfunction Location

M-MDS display

B1128:55

Configuration setting error (driver-side curtain air bag module structural malfunction)

B1129:55

Configuration setting error (passenger-side curtain air bag module structural malfunction)

DTC	System Malfunction Location
B1128:55	Configuration setting error (driver-side curtain air bag module structural malfunction)
B1129:55	Configuration setting error (passenger-side curtain air bag module structural 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.

• SAS control module configuration setting has not been done correctly

Possible Causes

• SAS control module configuration setting not implemented

• SAS control module configuration setting invalid

• Curtain air bag module assembly incorrect

• SAS control module malfunction

Diagnostic Procedure

Step

Inspection

Action

1

PERFORM SAS CONTROL MODULE INSPECTION

•  Perform the configuration for the SAS control module using the M-MDS.
(See SAS CONTROL MODULE CONFIGURATION.)

•  Perform the DTC inspection for the SAS control module using the M-MDS.
(See DTC DISPLAY.)

•  Are the same DTCs present?

Yes

Perform the SAS control module configuration, then go to the next step.

(See SAS CONTROL MODULE CONFIGURATION.)

No

DTC troubleshooting completed.

2

INSPECT SAS CONTROL MODULE

•  Verify that the correct curtain air bag module is assembled.

•  Are the driver-side and passenger-side curtain air bag module installed correctly?

Yes

Go to the next step.

No

Install the driver-side and passenger-side curtain air bag module.

(See CURTAIN AIR BAG MODULE REMOVAL/INSTALLATION [4SD].)

(See CURTAIN AIR BAG MODULE REMOVAL/INSTALLATION [5HB].)

(See CURTAIN AIR BAG MODULE REMOVAL/INSTALLATION [WGN].)

3

PERFORM SAS CONTROL MODULE DTC INSPECTION

•  Perform the DTC inspection for the SAS control module using the M-MDS.
(See DTC DISPLAY.)

•  Are the same DTCs present?

Yes

Replace the SAS control module.

(See SAS CONTROL MODULE REMOVAL/INSTALLATION.)

No

DTC troubleshooting completed.

DTC	System Malfunction Location
M-MDS display	System Malfunction Location
B1128:55	Configuration setting error (driver-side curtain air bag module structural malfunction)
B1129:55	Configuration setting error (passenger-side curtain air bag module structural malfunction)

Step	Inspection		Action
1	PERFORM SAS CONTROL MODULE INSPECTION • Perform the configuration for the SAS control module using the M-MDS. (See SAS CONTROL MODULE CONFIGURATION.) • Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC DISPLAY.) • Are the same DTCs present?	Yes	Perform the SAS control module configuration, then go to the next step. (See SAS CONTROL MODULE CONFIGURATION.)
1		No	DTC troubleshooting completed.
2	INSPECT SAS CONTROL MODULE • Verify that the correct curtain air bag module is assembled. • Are the driver-side and passenger-side curtain air bag module installed correctly?	Yes	Go to the next step.
2		No	Install the driver-side and passenger-side curtain air bag module. (See CURTAIN AIR BAG MODULE REMOVAL/INSTALLATION [4SD].) (See CURTAIN AIR BAG MODULE REMOVAL/INSTALLATION [5HB].) (See CURTAIN AIR BAG MODULE REMOVAL/INSTALLATION [WGN].)
3	PERFORM SAS CONTROL MODULE DTC INSPECTION • Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC DISPLAY.) • Are the same DTCs present?	Yes	Replace the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
3		No	DTC troubleshooting completed.