DTC    B1635/24    Front Passenger Side Rear Airbag Sensor Circuit Malfunction

DTC    B1637/82    Lost Communication with Passenger Side Rear Airbag Sensor

for Preparation Click here


DESCRIPTION

for DTC B1635/24:
The passenger side - side airbag sensor (for rear side) consists of the safing sensor, the diagnostic circuit, the lateral deceleration sensor, etc.
If the center airbag sensor assembly receives signals from the lateral deceleration sensor, it determines whether the SRS should be activated.
DTC B1635/24 is recorded when a malfunction is detected in the passenger side - side airbag sensor (for rear side) circuit.
for DTC B1637/82:
The circuit for the passenger side - side collision sensor (to determine deployment of the curtain shield airbag (passenger side) is composed of the center airbag sensor assembly, passenger side - side airbag sensor (for front side) and passenger side - side airbag sensor (for rear side).
The passenger side - side airbag sensor (for front side) and passenger side - side airbag sensor (for rear side) detect impacts to the vehicle and send signals to the center airbag sensor assembly to determine if the airbag should be deployed.
DTC B1637/82 is recorded when a malfunction is detected in the circuit for the passenger side - side collision sensor (for rear side) (to determine deployment of the curtain shield airbag (passenger side).

DTC No.
DTC Detection Condition
Trouble Area
B1635/24
B1637/82
When one of following conditions is met:
  1. Passenger side - side airbag sensor (for rear side) malfunction
  2. Center airbag sensor assembly malfunction
  1. Passenger side - side airbag sensor (for rear side)
  2. Center airbag sensor assembly

WIRING DIAGRAM


C195582E03


C195582E04


INSPECTION PROCEDURE

1.CHECK PASSENGER SIDE - SIDE AIRBAG SENSOR (FOR REAR SIDE)
C195583E01

  1. Turn the ignition switch off.

  1. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

  1. Interchange the driver side - side airbag sensor (for rear side) with passenger side - side airbag sensor (for rear side) and connect the connectors to them.

  1. Connect the cable to the negative battery terminal, and wait for at least 2 seconds.

  1. Turn the ignition switch to ON, and wait for at least 60 seconds.

  1. Clear the DTCs stored in the memory (Click here).

  1. Turn the ignition switch off.

  1. Turn the ignition switch to ON, and wait for at least 60 seconds.

  1. Check for DTCs (Click here).
    Result 
    Result
    		Proceed to
    DTC B1630/23, B1632/81, B1635/24 and B1637/82 are not output
    		A
    DTC B1630/23 or B1632/81 is output
    		B
    DTC B1635/24 or B1637/82 is output
    		C
    Text in Illustration 
    *1
    		Driver Side - Side Airbag Sensor (for Rear Side)
    *2
    		Passenger Side - Side Airbag Sensor (for Front Side)

    HINT:
    DTCs other than B1630/23, B1632/81, B1635/24 and B1637/82 may be output at this time, but they are not related to this check.

  1. Turn the ignition switch off.

  1. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

  1. Return the driver side - side airbag sensor (for rear side) and passenger side - side airbag sensor (for rear side) to their original positions and connect the connectors to them.



A
USE SIMULATION METHOD TO CHECK (Click here)

B
REPLACE PASSENGER SIDE - SIDE AIRBAG SENSOR (FOR REAR SIDE) (Click here)
C

REPLACE CENTER AIRBAG SENSOR ASSEMBLY (Click here)