DTC B1128:55/B1129:55

id080200822900

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

•  Parts which have not been set to SAS control module are assembled

Fail-safe function

Not applicable

Possible cause

•  SAS control module configuration setting not implemented

•  SAS control module configuration setting invalid

•  Driver or passenger-side curtain air bag module assembly incorrect

•  SAS control module malfunction

System wiring diagram

Not applicable

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 • Parts which have not been set to SAS control module are assembled
Fail-safe function	Not applicable
Possible cause	• SAS control module configuration setting not implemented • SAS control module configuration setting invalid • Driver or passenger-side curtain air bag module assembly incorrect • SAS control module malfunction
System wiring diagram	Not applicable

Diagnostic Procedure

Step

Inspection

Action

1

PERFORM SAS CONTROL MODULE CONFIGURATION (AS-BUILT DATA USE)

•  Perform the SAS control module configuration using the M-MDS.
(See SAS CONTROL MODULE CONFIGURATION (USING AS-BUILT DATA).)

•  Clear the DTC for the SAS control module using the M-MDS.
(See CLEARING DTC.)

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

•  Are the same DTCs present?

Yes

Go to the next step.

No

DTC troubleshooting completed.

2

INSPECT CURTAIN AIR BAG MODULE

•  Verify that the driver or passenger-side curtain air bag module is correctly installed.

•  Is the driver or passenger-side curtain air bag module correctly installed?

Yes

Go to the next step.

No

Correctly install the driver or passenger-side curtain air bag module.

Then go to the next step.

3

PERFORM SAS CONTROL MODULE DTC INSPECTION

•  Clear the DTC for the SAS control module using the M-MDS.
(See CLEARING DTC.)

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

•  Are the same DTCs present?

Yes

Replace the SAS control module.

(See SAS CONTROL MODULE REMOVAL/INSTALLATION.)

No

DTC troubleshooting completed.

Step	Inspection		Action
1	PERFORM SAS CONTROL MODULE CONFIGURATION (AS-BUILT DATA USE) • Perform the SAS control module configuration using the M-MDS. (See SAS CONTROL MODULE CONFIGURATION (USING AS-BUILT DATA).) • Clear the DTC for the SAS control module using the M-MDS. (See CLEARING DTC.) • Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION.) • Are the same DTCs present?	Yes	Go to the next step.
1		No	DTC troubleshooting completed.
2	INSPECT CURTAIN AIR BAG MODULE • Verify that the driver or passenger-side curtain air bag module is correctly installed. • Is the driver or passenger-side curtain air bag module correctly installed?	Yes	Go to the next step.
2		No	Correctly install the driver or passenger-side curtain air bag module. Then go to the next step.
3	PERFORM SAS CONTROL MODULE DTC INSPECTION • Clear the DTC for the SAS control module using the M-MDS. (See CLEARING DTC.) • Perform the DTC inspection for the SAS control module using the M-MDS. (See DTC INSPECTION.) • Are the same DTCs present?	Yes	Replace the SAS control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
3		No	DTC troubleshooting completed.