DTC B104B, B104C, B104D, B2856, B2886, B2887

id080200809100


System Malfunction Location

DTC

System Malfunction Location

M-MDS display
B104B
Driver-side air bag sensor assembly incorrect
B104C
Passenger-side air bag sensor assembly incorrect
B104D
Crash zone sensor assembly incorrect
B2856
Crash zone sensor system communication data error
B2886
Passenger-side side air bag sensor system communication data error
B2887
Driver-side side air bag sensor system communication data error


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 SAS control module detects an error of impact magnitude set in the sensor, which occurs due to installation mismatch of the crash zone sensor or side air bag sensors.

Possible Causes

•  Crash zone sensor misinstalled with wrong sensor
•  Driver-side side air bag sensor misinstalled with wrong sensor
•  Passenger-side side air bag sensor misinstalled with wrong sensor
•  SAS control module malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
INSPECT EACH SENSOR FOR INSTALLATION POSITION
Warning
•  Handling the air bag system components improperly can accidentally deploy the air bag modules and pre-tensioner seat belts, which may seriously injure you. Read the service warnings and cautions before handling the air bag system components.
•  Turn the ignition switch to the LOCK position.
•  Disconnect the negative battery cable and wait for 1 min or more.
•  Verify that the crash zone sensor or side air bag sensor is installed in the correct position.
•  Is each sensor installed correctly?
Yes
Go to the next step.
No
Install the each sensor correctly, then go to the next step.
2
PERFORM SAS CONTROL MODULE DTC INSPECTION
•  Connect the negative battery cable.
•  Turn the ignition switch to the ON position.
•  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 DTCs present?
Yes
Replace the SAS control module.
(See SAS CONTROL MODULE REMOVAL/INSTALLATION.)
No
DTC troubleshooting completed.