Dtc B1835/58 Short In Front Passenger Side Curtain Shield Squib Circuit

Restraints. Camry. Acv40 Gsv40
Supplemental Restraint System. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CURTAIN SHIELD AIRBAG ASSEMBLY (FRONT PASSENGER SIDE CURTAIN SHIELD SQUIB)

CHECK CONNECTOR

CHECK WIRE HARNESS (FRONT PASSENGER SIDE CURTAIN SHIELD SQUIB CIRCUIT)

CHECK CENTER AIRBAG SENSOR ASSEMBLY

DTC B1835/58 Short in Front Passenger Side Curtain Shield Squib Circuit

DTC B1836/58 Open in Front Passenger Side Curtain Shield Squib Circuit

DTC B1837/58 Short to GND in Front Passenger Side Curtain Shield Squib Circuit

DTC B1838/58 Short to B+ in Front Passenger Side Curtain Shield Squib Circuit


DESCRIPTION

The front passenger side curtain shield squib circuit consists of the center airbag sensor assembly and the curtain shield airbag assembly (passenger side).
The circuit instructs the SRS to deploy when deployment conditions are met.
These DTCs are recorded when a malfunction is detected in the front passenger side curtain shield squib circuit.

DTC No.
DTC Detection Condition
Trouble Area
B1835/58
  1. The center airbag sensor assembly receives a line short circuit signal 5 times in the front passenger side curtain shield squib circuit during primary check.
  2. Front passenger side curtain shield squib malfunction
  3. Center airbag sensor assembly malfunction
  1. Floor wire No. 2 (for LHD)
  2. Floor wire (for RHD)
  3. Curtain shield airbag assembly (Front passenger side curtain shield squib)
  4. Center airbag sensor assembly
B1836/58
  1. The center airbag sensor assembly receives an open circuit signal in the front passenger side curtain shield squib circuit for 2 seconds.
  2. Front passenger side curtain shield squib malfunction
  3. Center airbag sensor assembly malfunction
  1. Floor wire No. 2 (for LHD)
  2. Floor wire (for RHD)
  3. Curtain shield airbag assembly (Front passenger side curtain shield squib)
  4. Center airbag sensor assembly
B1837/58
  1. The center airbag sensor assembly receives a short circuit to ground signal in the front passenger side curtain shield squib circuit for 0.5 seconds.
  2. Front passenger side curtain shield squib malfunction
  3. Center airbag sensor assembly malfunction
  1. Floor wire No. 2 (for LHD)
  2. Floor wire (for RHD)
  3. Curtain shield airbag assembly (Front passenger side curtain shield squib)
  4. Center airbag sensor assembly
B1838/58
  1. The center airbag sensor assembly receives a short circuit to B+ signal in the front passenger side curtain shield squib circuit for 0.5 seconds.
  2. Front passenger side curtain shield squib malfunction
  3. Center airbag sensor assembly malfunction
  1. Floor wire No. 2 (for LHD)
  2. Floor wire (for RHD)
  3. Curtain shield airbag assembly (Front passenger side curtain shield squib)
  4. Center airbag sensor assembly

WIRING DIAGRAM


Camry. Acv40 Gsv40.Supplemental Restraint System.Airbag System. Dtc B1835/58 Short In Front Passenger Side Curtain Shield Squib Circuit


INSPECTION PROCEDURE

HINT:
  1. Perform the simulation method by selecting the "check mode" (signal check) with the intelligent tester (CAMRY_ACV40 RM000000XFF00YX.html).
  2. After selecting the "check mode" (signal check), perform the simulation method by wiggling each connector of the airbag system or driving the vehicle on a city or rough road (CAMRY_ACV40 RM000000XFF00YX.html).
1.CHECK CURTAIN SHIELD AIRBAG ASSEMBLY (FRONT PASSENGER SIDE CURTAIN SHIELD SQUIB)


    Camry. Acv40 Gsv40.Supplemental Restraint System.Airbag System. Dtc B1835/58 Short In Front Passenger Side Curtain Shield Squib Circuit

  1. Turn the ignition switch to the LOCK position.

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

  1. Disconnect the connectors from the curtain shield airbag assembly (passenger side).

  1. Connect the white wire side of SST (resistance 2.1 Ω) to connector C.

    CAUTION:
    Never connect a tester to the curtain shield airbag assembly (front passenger side curtain shield squib) for measurement, as this may lead to a serious injury due to airbag deployment.
    NOTICE:
    1. Do not forcibly insert the SST into the terminals of the connector when connecting.
    2. Insert straight the SST into the terminals of the connector.
SST
09843-18061

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

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

  1. Clear the DTCs stored in the memory (CAMRY_ACV40 RM000000XFE0BNX.html).

  1. Turn the ignition switch to the LOCK position.

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

  1. Check for DTCs (CAMRY_ACV40 RM000000XFE0BNX.html).

    OK:
    DTC B1835, B1836, B1837, B1838, or 58 is not output.
    HINT:
    Codes other than DTC B1835, B1836, B1837, B1838, and 58 may be output at this time, but they are not related to this check.


OK
REPLACE CURTAIN SHIELD AIRBAG ASSEMBLY (PASSENGER SIDE) (CAMRY_ACV40 RM000000UXG06MX.html)
OK


2.CHECK CONNECTOR

  1. Turn the ignition switch to the LOCK position.

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

  1. Disconnect the SST from connector C.

  1. Check that the wire harness connectors (on the curtain shield airbag assembly (passenger side) side) are not damaged.

    OK:
    The lock button is not disengaged, or the claw of the lock is not deformed or damaged.
Result:
Result
Proceed to
OK
A
NG (for LHD)
B
NG (for RHD)
C


B
REPAIR OR REPLACE FLOOR WIRE NO. 2

C
REPAIR OR REPLACE FLOOR WIRE
A


3.CHECK WIRE HARNESS (FRONT PASSENGER SIDE CURTAIN SHIELD SQUIB CIRCUIT)


    Camry. Acv40 Gsv40.Supplemental Restraint System.Airbag System. Dtc B1835/58 Short In Front Passenger Side Curtain Shield Squib Circuit

  1. Disconnect the connectors from the center airbag sensor assembly.

  1. Check for a short to B+ in the circuit.

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

    2. Turn the ignition switch to the ON position.

    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage:
      for LHD:
      Tester connection
      		Condition
      		Specified condition
      O16-1 (ICR+) - Body ground
      		Ignition switch ON
      		Below 1 V
      O16-2 (ICR-) - Body ground
      		Ignition switch ON
      		Below 1 V
      for RHD:
      Tester connection
      		Condition
      		Specified condition
      N21-1 (ICL+) - Body ground
      		Ignition switch ON
      		Below 1 V
      N21-2 (ICL-) - Body ground
      		Ignition switch ON
      		Below 1 V
Result:
Result
Proceed to
OK
A
NG (for LHD)
B
NG (for RHD)
C

  1. Check for an open in the circuit.

    1. Turn the ignition switch to the LOCK position.

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

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance:
      for LHD:
      Tester connection
      		Condition
      		Specified condition
      O16-1 (ICR+) - O16-2 (ICR-)
      		Always
      		Below 1 Ω
      for RHD:
      Tester connection
      		Condition
      		Specified condition
      N21-1 (ICL+) - N21-2 (ICL-)
      		Always
      		Below 1 Ω
Result:
Result
Proceed to
OK
A
NG (for LHD)
B
NG (for RHD)
C

  1. Check for a short to ground in the circuit.

    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance:
      for LHD:
      Tester connection
      		Condition
      		Specified condition
      O16-1 (ICR+) - Body ground
      		Always
      		1 MΩ or higher
      O16-2 (ICR-) - Body ground
      		Always
      		1 MΩ or higher
      for RHD:
      Tester connection
      		Condition
      		Specified condition
      N21-1 (ICL+) - Body ground
      		Always
      		1 MΩ or higher
      N21-2 (ICL-) - Body ground
      		Always
      		1 MΩ or higher
Result:
Result
Proceed to
OK
A
NG (for LHD)
B
NG (for RHD)
C

  1. Check for a short in the circuit.

    1. Release the activation prevention mechanism built into connector B (CAMRY_ACV40 RM000000XFD0BDX.html).

    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance:
      for LHD:
      Tester connection
      		Condition
      		Specified condition
      O16-1 (ICR+) - O16-2 (ICR-)
      		Always
      		1 MΩ or higher
      for RHD:
      Tester connection
      		Condition
      		Specified condition
      N21-1 (ICL+) - N21-2 (ICL-)
      		Always
      		1 MΩ or higher
Result:
Result
Proceed to
OK
A
NG (for LHD)
B
NG (for RHD)
C


B
REPAIR OR REPLACE FLOOR WIRE NO. 2

C
REPAIR OR REPLACE FLOOR WIRE
A


4.CHECK CENTER AIRBAG SENSOR ASSEMBLY


    Camry. Acv40 Gsv40.Supplemental Restraint System.Airbag System. Dtc B1835/58 Short In Front Passenger Side Curtain Shield Squib Circuit

  1. Connect the connectors to the curtain shield airbag assembly (passenger side) and the center airbag sensor assembly.

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

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

  1. Clear the DTCs stored in the memory (CAMRY_ACV40 RM000000XFE0BNX.html).

  1. Turn the ignition switch to the LOCK position.

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

  1. Check for DTCs (CAMRY_ACV40 RM000000XFE0BNX.html).

    OK:
    DTC B1835, B1836, B1837, B1838, or 58 is not output.
    HINT:
    Codes other than DTC B1835, B1836, B1837, B1838, and 58 may be output at this time, but they are not related to this check.


NG
REPLACE CENTER AIRBAG SENSOR ASSEMBLY (CAMRY_ACV40 RM000000UWV065X.html)
OK

USE SIMULATION METHOD TO CHECK (CAMRY_ACV40 RM000000XFD0BDX.html)