DTC Lookup

B1213 DTC

Communication error with seat weight sensor control module (no response or error data received)

Component Connector
Component Connector
Component Connector
Component Connector
Component Connector
Component Connector
Component Connector
Component Connector
Component Connector
Component Connector

Possible Causes

  • injury or damage the system due to a mis-operation. When performing an

SAS

B1213:00 [SAS]

SM3342156

id9902k0813600

Details On DTCs

System malfunction location

Communication error with seat weight sensor control module (no response or error data received)
Detection condition
Determination condition
Warning
•Detection conditions are for understanding the DTC outline before performing an inspection. Performing an inspection only under the detection conditions may cause injury or damage the system due to a mis-operation. When performing an inspection, always follow the diagnostic procedure.
•The SAS control module detects a passenger-side buckle switch error with the seat weight sensor control module (no response or error data received).
Precondition
•Not applicable
Determination period
•Not applicable
Fail-safe
•Not applicable
Vehicle status when DTCs are output
•Not applicable
Possible cause
•DTCs are stored in the SAS control module.
―Communication error between passenger-side buckle switch and seat weight sensor control module
―Communication error between seat weight sensor control module and SAS control module
•SAS control module malfunction

System Wiring Diagram

•Not applicable

Function Explanation (DTC Detection Outline)

•Not applicable

Repeatability Verification Procedure

•Not applicable

Function Inspection Using M-MDS

•Not applicable

Troubleshooting Diagnostic Procedure

Step

Inspection

Results

Action
1
PURPOSE: VERIFY SAS CONTROL MODULE DTCs
•Clear the DTC recorded in the memory. (See CLEARING DTC.)
•Perform the DTC inspection for the SAS control module. (See DTC INSPECTION.)
•Is any of the following DTCs displayed?
―B00A0:09
―B0052:09
―B0052:11
―B0052:14
Yes
Repair or replace the malfunctioning location according to the applicable DTC troubleshooting.
No
Go to the next step.
Repair completion verification 1
PURPOSE: VERIFY IF VEHICLE IS REPAIRED
•Install/connect the part removed/disconnected during the troubleshooting procedure.
•Clear the DTC recorded in the memory. (See CLEARING DTC.)
•Perform the DTC inspection for the SAS control module. (See DTC INSPECTION.)
•Is the same DTC displayed?
Yes
Refer to the CAN (controller area network) malfunction diagnosis flow to inspect for a CAN communication error.
If the CAN communication is normal, perform the diagnosis from Step 1 again.
•If the malfunction is not resolved, replace the SAS control module, then go to the next step. (Refer to [SAS CONTROL MODULE REMOVAL/INSTALLATION] in workshop manual.)
No
Go to the next step.
Repair completion verification 2
PURPOSE: VERIFY IF OTHER DTCs ARE DISPLAYED
•Perform the DTC inspection. (See DTC INSPECTION.)
•Are other DTCs displayed?
Yes
Repair or replace the malfunctioning location according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.