B1665/17

DTC Code	DTC Name
B1665/17	Front Floor Airbag Sensor Malfunction

DESCRIPTION

for LHD:

The front passenger side - side collision sensor circuit (to determine deployment of the front seat side airbag assembly RH and curtain shield airbag assembly RH) is composed of the center airbag sensor assembly, side airbag sensor RH (for front side), rear airbag sensor RH, side airbag sensor RH (for rear side) and front floor airbag sensor.

for RHD:

The driver side - side collision sensor circuit (to determine deployment of the front seat side airbag assembly RH and curtain shield airbag assembly RH) is composed of the center airbag sensor assembly, side airbag sensor RH (for front side), rear airbag sensor RH, side airbag sensor RH (for rear side) and front floor airbag sensor.

The front floor airbag sensor detects impacts to the vehicle and sends signals to the center airbag sensor assembly to determine if the airbag should be deployed.

DTC B1665/17 is recorded when a malfunction is detected in the front floor airbag sensor.

DTC No.	DTC Detection Condition	Trouble Area
B1665/17	Front floor airbag sensor malfunction Center airbag sensor assembly malfunction	Front floor airbag sensor Center airbag sensor assembly

WIRING DIAGRAM

Refer to DTC B1622/81 Click here.

INSPECTION PROCEDURE

PROCEDURE

CHECK FRONT FLOOR AIRBAG SENSOR

Turn the engine switch off.
Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
Interchange the rear floor airbag sensor with the front floor airbag sensor and connect the connectors.
Connect the cable to the negative (-) battery terminal.
Turn the engine switch on (IG), and wait for at least 60 seconds.
Clear the DTCs stored in the memory Click here.
Turn the engine switch off.
Turn the engine switch on (IG), and wait for at least 60 seconds.

Check for DTCs Click here.

Result

Result	Proceed to
DTC B1665/17 is output.	A
DTC B1675/18 is output.	B
DTCs B1665/17 and B1675/18 are not output.	C

Tech Tips

Codes other than DTCs B1665/17 and B1675/18 may be output at this time, but they are not related to this check.

B

REPLACE FRONT FLOOR AIRBAG SENSOR Click here

C

USE SIMULATION METHOD TO CHECK Click here

A

REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here

AIRBAG SYSTEM, Diagnostic DTC:B1665/17