Dtc B1810/53 Short In Driver Side Squib 2Nd Step Circuit

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK STEERING PAD (DRIVER SIDE SQUIB 2ND STEP)

CHECK CONNECTOR

CHECK DRIVER SIDE SQUIB 2ND STEP CIRCUIT

CHECK CENTER AIRBAG SENSOR ASSEMBLY

CHECK INSTRUMENT PANEL WIRE

CHECK SPIRAL CABLE

DTC B1810/53 Short in Driver Side Squib 2nd Step Circuit

DTC B1811/53 Open in Driver Side Squib 2nd Step Circuit

DTC B1812/53 Short to GND in Driver Side Squib 2nd Step Circuit

DTC B1813/53 Short to B+ in Driver Side Squib 2nd Step Circuit


DESCRIPTION

The driver side squib 2nd step circuit consists of the center airbag sensor assembly, the spiral cable, and the steering pad.
The circuit instructs the SRS to deploy when deployment conditions are met.
These DTCs are recorded when a malfunction is detected in the driver side squib 2nd step circuit.

DTC No.
DTC Detecting Condition
Trouble Area
B1810/53
  1. The center airbag sensor assembly receives a line short circuit signal 5 times in the driver side squib 2nd step circuit during primary check.
  2. Driver side squib 2nd step malfunction
  3. Spiral cable malfunction
  4. Center airbag sensor assembly malfunction
  1. Instrument panel wire
  2. Spiral cable
  3. Steering pad (Driver side squib 2nd step)
  4. Center airbag sensor assembly
B1811/53
  1. The center airbag sensor assembly receives an open circuit signal in the driver side squib 2nd step circuit for 2 seconds.
  2. Driver side squib 2nd step malfunction
  3. Spiral cable malfunction
  4. Center airbag sensor assembly malfunction
  1. Instrument panel wire
  2. Spiral cable
  3. Steering pad (Driver side squib 2nd step)
  4. Center airbag sensor assembly
B1812/53
  1. The center airbag sensor assembly receives a short circuit to ground signal in the driver side squib 2nd step circuit for 0.5 seconds.
  2. Driver side squib 2nd step malfunction
  3. Spiral cable malfunction
  4. Center airbag sensor assembly malfunction
  1. Instrument panel wire
  2. Spiral cable
  3. Steering pad (Driver side squib 2nd step)
  4. Center airbag sensor assembly
B1813/53
  1. The center airbag sensor assembly receives a short circuit to B+ signal in the driver side squib 2nd step circuit for 0.5 seconds.
  2. Driver side squib 2nd step malfunction
  3. Spiral cable malfunction
  4. Center airbag sensor assembly malfunction
  1. Instrument panel wire
  2. Spiral cable
  3. Steering pad (Driver side squib 2nd step)
  4. Center airbag sensor assembly

WIRING DIAGRAM


Camry. Acv40 Gsv40.Supplemental Restraint System.Airbag System. Dtc B1810/53 Short In Driver Side Squib 2Nd Step Circuit


INSPECTION PROCEDURE

HINT:
  1. Perform the simulation method by selecting "check mode" (signal check) with the intelligent tester (CAMRY_ACV40 RM000000XFF00YX.html).
  2. After selecting "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 STEERING PAD (DRIVER SIDE SQUIB 2ND STEP)


    Camry. Acv40 Gsv40.Supplemental Restraint System.Airbag System. Dtc B1810/53 Short In Driver Side Squib 2Nd Step 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 steering pad.

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

    CAUTION:
    Never connect the tester to the steering pad (driver side squib 2nd step) 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 the DTCs (CAMRY_ACV40 RM000000XFE0BNX.html).

    OK:
    DTC B1810, B1811, B1812, B1813, or 53 is not output.
    HINT:
    Codes other than DTC B1810, B1811, B1812, B1813, and 53 may be output at this time, but they are not related to this check.


OK
REPLACE STEERING PAD (CAMRY_ACV40 RM000000UW807CX.html)
NG


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 E.

  1. Check that the spiral cable connectors (on the steering pad side) are not damaged.

    OK:
    The lock button is not disengaged, or the claw of the lock is not deformed or damaged.


NG
REPLACE SPIRAL CABLE (CAMRY_ACV40 RM000000UWD06SX.html)
OK


3.CHECK DRIVER SIDE SQUIB 2ND STEP CIRCUIT


    Camry. Acv40 Gsv40.Supplemental Restraint System.Airbag System. Dtc B1810/53 Short In Driver Side Squib 2Nd Step 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:
      Tester Connection
      		Condition
      		Specified Condition
      D2+ - Body ground
      		ignition switch ON
      		Below 1 V
      D2- - Body ground
      		ignition switch ON
      		Below 1 V

  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:
      Tester Connection
      		Condition
      		Specified Condition
      D2+ - D2-
      		Always
      		Below 1 Ω

  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:
      Tester Connection
      		Condition
      		Specified Condition
      D2+ - Body ground
      		Always
      		1 MΩ or higher
      D2- - Body ground
      		Always
      		1 MΩ or higher

  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:
      Tester Connection
      		Condition
      		Specified Condition
      D2+ - D2-
      		Always
      		1 MΩ or higher


NG
Go to step 5
OK


4.CHECK CENTER AIRBAG SENSOR ASSEMBLY


    Camry. Acv40 Gsv40.Supplemental Restraint System.Airbag System. Dtc B1810/53 Short In Driver Side Squib 2Nd Step Circuit

  1. Connect the connectors to the steering pad 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 the DTCs (CAMRY_ACV40 RM000000XFE0BNX.html).

    OK:
    DTC B1810, B1811, B1812, B1813, or 53 is not output.
    HINT:
    Codes other than DTC B1810, B1811, B1812, B1813, and 53 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)

5.CHECK INSTRUMENT PANEL WIRE


    Camry. Acv40 Gsv40.Supplemental Restraint System.Airbag System. Dtc B1810/53 Short In Driver Side Squib 2Nd Step Circuit

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

    1. Restore the released activation prevention mechanism of connector B to the original condition.

    2. Disconnect the instrument panel wire connector from the spiral cable.

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

    4. Turn the ignition switch to the ON position.

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

      Standard voltage:
      Tester Connection
      		Condition
      		Specified Condition
      E16-4 (D2+) - Body ground
      		Ignition switch ON
      		Below 1 V
      E16-3 (D2-) - Body ground
      		Ignition switch ON
      		Below 1 V

  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:
      Tester Connection
      		Condition
      		Specified Condition
      E16-4 (D2+) - E16-3 (D2-)
      		Always
      		Below 1 Ω

  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:
      Tester Connection
      		Condition
      		Specified Condition
      E16-4 (D2+) - Body ground
      		Always
      		1 MΩ or higher
      E16-3 (D2-) - Body ground
      		Always
      		1 MΩ or higher

  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:
      Tester Connection
      		Condition
      		Specified Condition
      E16-4 (D2+) - E16-3 (D2-)
      		Always
      		1 MΩ or higher


NG
REPAIR OR REPLACE INSTRUMENT PANEL WIRE ASSEMBLY
OK


6.CHECK SPIRAL CABLE


    Camry. Acv40 Gsv40.Supplemental Restraint System.Airbag System. Dtc B1810/53 Short In Driver Side Squib 2Nd Step Circuit

  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:
      Tester Connection
      		Condition
      		Specified Condition
      D2+ - Body ground
      		Ignition switch ON
      		Below 1 V
      D2- - Body ground
      		Ignition switch ON
      		Below 1 V

  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:
      Tester Connection
      		Condition
      		Specified Condition
      D2+ - D2-
      		Always
      		Below 1 Ω

  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:
      Tester Connection
      		Condition
      		Specified Condition
      D2+ - Body ground
      		Always
      		1 MΩ or higher
      D2- - Body ground
      		Always
      		1 MΩ or higher

  1. Check for a short in the circuit.

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

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

      Standard resistance:
      Tester Connection
      		Condition
      		Specified Condition
      D2+ - D2-
      		Always
      		1 MΩ or higher


NG
REPLACE SPIRAL CABLE (CAMRY_ACV40 RM000000UWD06SX.html)
OK

USE SIMULATION METHOD TO CHECK (CAMRY_ACV40 RM000000XFD0BDX.html)