DTC B1761: Occupant Detection Sensor Mat Liquid Coating

Diagnosis start condition: 

Ignition voltage is 8 V to 16 V.

DTC detecting condition: 

• Occupant detection sensor is spattered with fluid.
• Occupant detection sensor is faulty.
• Occupant detection control module is faulty.

1. CHECK AIRBAG WARNING LIGHT. 

   Check whether or not the airbag warning light illuminate.

   Does it Illuminate?

   Yes:  Go to  2.

   No:  Read the DTC, and if DTC B1761 is recorded as a past malfunction, Go to  3.

2. CHECK STATUS OF PASSENGER'S SEAT. 

   Check if the passenger's seat cushion is wet.

   Is it wet?

   Yes:  Go to  3.

   No:  Go to  4.

3. DRY PASSENGER'S SEAT. 

   Dry the passenger's seat well naturally.

   Is it dry?

   Yes:  Go to  4.

   No:  After drying well, Go to  4.

4. CHECK DTC. 

   Read the DTC of the occupant detection system. Refer to OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)>READ DIAGNOSTIC TROUBLE CODE (DTC)>OPERATION>OCCUPANT DETECTION SYSTEM .

   Are any DTCs displayed?

   Yes:  When DTC B1761 is displayed again, replace the occupant detection system (passenger's & frame assembly). Refer to SEATS>FRONT SEAT>DISASSEMBLY>PASSENGER'S SEAT .

   When any other DTC is displayed, perform the diagnosis for the displayed DTC.

   No:  Clear the memory. Refer to OCCUPANT DETECTION SYSTEM (DIAGNOSTICS)>CLEAR MEMORY MODE>OPERATION>OCCUPANT DETECTION SYSTEM .