B1790

DTC B1790 Center Airbag Sensor Assembly Communication Circuit Malfunction

DESCRIPTION

DTC Detecting Condition:

The center airbag sensor assembly communication circuit consists of the occupant classification ECU and the center airbag sensor assembly.

DTC B1790 is recorded when a malfunction is detected in the center airbag sensor assembly communication circuit.

HINT: When DTC B1650/32 is detected as a result of troubleshooting for the AIRBAG SYSTEM, check the DTCs stored in the occupant classification ECU. When DTC B1790 is output, perform troubleshooting for the DTC.

Wiring Diagram:

Step 1:

Step 1 (Continued)-3:

Step 4:

Step 5:

Step 6-7:

Step 8-9:

Step 10-12:

Step 13:

Step 14:

Step 15:

Step 16:

INSPECTION PROCEDURE

HINT:
- If troubleshooting (wire harness inspection) is difficult to perform, remove the front passenger seat installation bolts to see the undersurface of the seat cushion.
- In the case, hold the seat so that it does not fall down. Holding the seat for a long period of time may cause a problem, such as seat rail deformation. Hold the seat only as necessary.