DTC B1197:29/B1197:4A/B1197:87/B1197:96 [SAS CONTROL MODULE (STANDARD DEPLOYMENT CONTROL SYSTEM)]


id0802g7843800

System malfunction location

•  B1197:29, B1197:96:Passenger-side side air bag sensor No.2 internal malfunction
•  B1197:4A:Passenger-side side air bag sensor No.2 ID error (assembly incorrect)
•  B1197:87:Signal reception error from passenger-side side air bag sensor No.2
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.
•  Wiring harness between the passenger-side side air bag sensor No.2 and SAS control module has a malfunction
•  Passenger-side side air bag sensor No.2 has a malfunction
Fail-safe function
Not applicable
Possible cause
•  Passenger-side side air bag sensor No.2 connector malfunction
•  Open circuit in the wiring harness between the following terminals:
―  SAS control module terminal 1Q—passenger-side side air bag sensor No.2 terminal A
―  SAS control module terminal 1O—passenger-side side air bag sensor No.2 terminal B
•  Passenger-side side air bag sensor No.2 assembly incrrect
•  Passenger-side side air bag sensor No.2 malfunction
•  SAS control module malfunction


Diagnostic Procedure

Warning
•  Handling the component parts improperly can accidentally operate (deploy) the air bag modules, pre-tensioner seat belts and active bonnet actuators which may seriously injure you. Read the service warnings/cautions and the workshop manual before handling the air bag system components.
(See AIR BAG SYSTEM SERVICE WARNINGS [TWO-STEP DEPLOYMENT CONTROL SYSTEM].) (See AIR BAG SYSTEM SERVICE CAUTIONS [TWO-STEP DEPLOYMENT CONTROL SYSTEM].) (See ACTIVE BONNET SERVICE WARNINGS.) (See ACTIVE BONNET SERVICE CAUTIONS.)

Step

Inspection

Action

1
INSPECT PASSENGER-SIDE SIDE AIR BAG SENSOR No.2
•  Switch the ignition off.
•  Disconnect the negative battery terminal and wait for 1 min or more.
•  Remove the passenger-side front door trim.
•  Verify that the passenger-side side air bag sensor No.2 is correctly installed.
•  Is the passenger-side side air bag sensor No.2 correctly installed?
Yes
Go to the next step.
No
Correctly install the passenger-side side air bag sensor No.2.
Then go to Step 4.
2
INSPECT PASSENGER-SIDE SIDE AIR BAG SENSOR No.2 CONNECTOR
•  Disconnect the passenger-side side air bag sensor No.2 connector.
•  Inspect the passenger-side side air bag sensor No.2 connector (wiring harness-side). (Corrosion, damage, and disconnected pins)
•  Is there any malfunction of the passenger-side side air bag sensor No.2 connector (wiring harness-side)?
Yes
Replace the malfunctioning part, then go to Step 4.
No
Go to the next step.
3
INSPECT PASSENGER-SIDE SIDE AIR BAG SENSOR No.2 CIRCUIT FOR OPEN CIRCUIT
•  Remove the column cover.
•  Disconnect the clock spring connector.
•  Remove the glove compartment.
•  Disconnect the passenger-side air bag module connectors.
•  Disconnect the driver and passenger-side front seat connectors.
•  Remove the B-pillar lower trim.
•  Disconnect the driver and passenger-side front pre-tensioner seat belt connectors.
•  Remove the trunk side trim.
•  Disconnect the driver and passenger-side rear pre-tensioner seat belt connectors.
•  Remove the headliner.
•  Disconnect the driver and passenger-side curtain air bag module connectors.
•  Disconnect the active bonnet actuator connectors.
•  Disconnect the all SAS control module connectors.
•  Inspect for continuity between the following terminals (wiring harness-side):
―  Passenger-side side air bag sensor No.2 terminal A—SAS control module terminal 1Q
―  Passenger-side side air bag sensor No.2 terminal B—SAS control module terminal 1O
Note
•  Inspect for continuity while shaking the wiring harness between the SAS control module and passenger-side side air bag sensor No.2.
•  Is there continuity?
Yes
Replace the passenger-side side air bag sensor No.2, then go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between SAS control module terminal and passenger-side side air bag sensor No.2 terminal.
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
•  Replace the malfunctioning part.
If there is no common connector:
•  Replace the wiring harness which has an open circuit.
Go to the next step.
4
PERFORM SAS CONTROL MODULE DTC INSPECTION
•  Connect the SAS control module connectors.
•  Reconnect all disconnected connectors.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off or on).
•  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
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the SAS control module.
No
DTC troubleshooting completed.