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.

Wiring Diagram:

INSPECTION PROCEDURE

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

Step 1-3:

Step 3 (Continued)-5:

Step 5 (Continued)-7:

Step 7 (Continued)-10:

Step 11-12:

Step 13-14:

Step 15-16:

Step 17-19:

Step 20-21:

Step 22:

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Step 24:

Step 25: