B1790

DTC B1790 AIRBAG SENSOR ASSEMBLY CENTER COMMUNICATION CIRCUIT MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detecting Condition:

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

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

HINT: When DTC B1630/32 is detected as a result of troubleshooting for the supplemental restraint system, perform troubleshooting for DTC B1790 of the occupant classification system.

Wiring Diagram:

Step 1-2:

Step 3-5:

Step 6-7:

Step 8-9:

Step 10-13:

Step 14-15:

Step 16-17:

Step 18-21:

Step 22-23:

Step 24-25:

Step 26:

INSPECTION PROCEDURE

HINT:
- If troubleshooting (wire harness inspection) is difficult to perform, remove the front RH seat assembly installation bolts to see the under surface of seat cushion.
- In the above 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.