DTC B1783: Front Left Occupant Detection Sensor Collision Detection

Diagnosis start condition: 

When the ignition voltage is 10 - 16 V.

DTC detecting condition: 

Load sensor detects a collision.

Trouble symptom: 

Occupant judgment of airbag control module stops.

1. CHECK AIRBAG SYSTEM OPERATION  .

   Check the operation status of the airbag system.

   Is there any airbag system operated?

   Yes  : Replace the seat assembly. Ref. to SEATS>FRONT SEAT

   Perform inspection referring to inspection part after collision. Ref. to AIRBAG SYSTEM>INSPECTION LOCATIONS AFTER A COLLISION>INSPECTION

   No  : Go to  2.

2. PERFORM [Rezeroing]  .

   Perform [Rezeroing]. Ref. to AIRBAG (DIAGNOSTICS)>REZERO 

   Is [Rezeroing] completed?

   Yes  : Go to  3.

   No  : Perform operation according to an error code displayed when [Rezeroing] fails. Ref. to AIRBAG (DIAGNOSTICS)>REZERO>LIST 

3. CHECK AIRBAG CONTROL MODULE  .
   1. Using the Subaru Select Monitor, perform the clear memory of [Airbag]. Ref. to COMMON (DIAGNOSTICS)>CLEAR MEMORY
   2. Execute the inspection mode. Ref. to AIRBAG (DIAGNOSTICS)>INSPECTION MODE 
   3. Read the DTC of [Airbag] using the Subaru Select Monitor. Ref. to AIRBAG (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) 

   Is DTC B1783, B1784, B1785 or B1786 displayed? (Current code)

   Yes  : Replace the airbag control module. Ref. to AIRBAG SYSTEM>AIRBAG CONTROL MODULE>REMOVAL

   No  : Currently, it is normal.