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DTC B1226:55 OR B1227:55 [SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM)]

DTC B1226:55 OR B1227:55 [SAS CONTROL MODULE (TWO-STEP DEPLOYMENT CONTROL SYSTEM)]

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Note
•  The SRS air bag system can be identified by whether or not the seat track position sensor is present.
―  Standard deployment control system: Without seat track position sensor
―  Two-step deployment control system: With seat track position sensor

Outline

System malfunction location

B1226:55:Configuration setting error (driver-side pressure sensor structural malfunction)

B1227:55:Configuration setting error (passenger-side pressure sensor 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
•  Not applicable
Possible cause
•  SAS control module configuration setting not implemented
•  SAS control module configuration setting invalid
•  SAS control module malfunction
System wiring diagram
•  Not applicable
Connector diagram
•  Not applicable

Diagnostic Procedure

Step

Inspection

Results

Action
1
VERIFY SPECIFICATION FOR INSTALLED PART
•  Verify the installation condition of the parts related to the DTC.
•  Is a part which is not for the vehicle specification installed?
Yes
Repair the part installation correctly, then go to the next step.
No
Go to the next step.
2
PERFORM SAS CONTROL MODULE CONFIGURATION
•  Perform the SAS control module configuration using the M-MDS.
•  Clear the DTC for the SAS control module using the M-MDS.
•  Perform the DTC inspection for the SAS control module using the M-MDS.
•  Are the same Pending DTCs present?
Yes
Perform the repair completion verification.
No
DTC troubleshooting completed.
Repair completion verification
PERFORM SAS CONTROL MODULE DTC INSPECTION
•  Clear the DTC for the SAS control module using the M-MDS.
•  Perform the DTC inspection for the SAS control module using the M-MDS.
•  Are the same Pending DTCs present?
Yes
Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error.
(See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [(E)].)
If the CAN communication is normal, perform the diagnosis from Step 1.
•  If the malfunction recurs, replace the SAS control module.
No
DTC troubleshooting completed.