Dtc B1635/24 Rear Airbag Sensor Lh Circuit Malfunction

Vehicle Interior. Yaris. Ncp93, 131
Supplemental Restraint Systems. Yaris. Ncp93, 131

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK NO. 2 SIDE AIRBAG SENSOR ASSEMBLY LH

DTC B1635/24 Rear Airbag Sensor LH Circuit Malfunction

DTC B1637/82 Lost Communication with Rear Airbag Sensor LH


DESCRIPTION

The No. 2 side airbag sensor assembly LH consists of the safing sensor, the diagnostic circuit, the lateral deceleration sensor, etc.
If the airbag sensor assembly receives signals from the lateral deceleration sensor, it determines whether the SRS should be activated.
DTC B1635/24 or B1637/82 is recorded when a malfunction is detected in the No. 2 side airbag sensor assembly LH circuit.

DTC No.
DTC Detection Condition
Trouble Area
B1635/24
B1637/82
When one of following conditions is met:
  1. No. 2 side airbag sensor assembly LH malfunction
  2. Airbag sensor assembly malfunction
  1. No. 2 side airbag sensor assembly LH
  2. Airbag sensor assembly

WIRING DIAGRAM


Yaris. Ncp93, 131.Supplemental Restraint Systems.Airbag System (For Sedan). Dtc B1635/24 Rear Airbag Sensor Lh Circuit Malfunction


INSPECTION PROCEDURE

1.CHECK NO. 2 SIDE AIRBAG SENSOR ASSEMBLY LH

  1. Turn the ignition switch off.

  1. Disconnect the cable from the negative (-) battery terminal.

    CAUTION:
    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.


    Yaris. Ncp93, 131.Supplemental Restraint Systems.Airbag System (For Sedan). Dtc B1635/24 Rear Airbag Sensor Lh Circuit Malfunction

  1. Interchange the No. 2 side airbag sensor assembly LH with No. 2 side airbag sensor assembly RH and connect the connectors to them.

    Text in Illustration
    *1
    		No. 2 Side Airbag Sensor Assembly RH
    *2
    		Side Airbag Sensor Assembly LH

  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 (YARIS_NCP93 RM000000XFE0F4X.html).

  1. Turn the ignition switch off.

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

  1. Check for DTCs (YARIS_NCP93 RM000000XFE0F4X.html).

    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
    (for 5 Door)
    		B
    DTC B1630/23 or B1632/81 is output
    (for 3 Door)
    		C
    DTC B1635/24 or B1637/82 is output
    		D
    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.

    CAUTION:
    Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

  1. Return the No. 2 side airbag sensor assembly LH and the No. 2 side airbag sensor assembly RH to their original positions and connect the connectors to them.



B
REPLACE NO. 2 SIDE AIRBAG SENSOR ASSEMBLY LH (YARIS_NCP93 RM000001IBD02AX.html)

C
REPLACE NO. 2 SIDE AIRBAG SENSOR ASSEMBLY LH (YARIS_NCP93 RM000001IBD02BX.html)

D
REPLACE AIRBAG SENSOR ASSEMBLY (YARIS_NCP93 RM000000V6U02AX.html)
A

USE SIMULATION METHOD TO CHECK (YARIS_NCP93 RM00000135202EX.html)