AIRBAG SYSTEM, Diagnostic DTC:B1660/43

DTC Code DTC Name
B1660/43 Passenger Airbag ON/OFF Indicator Circuit Malfunction

DESCRIPTION

The passenger airbag ON/OFF indicator circuit consists of the airbag sensor assembly and passenger airbag ON/OFF indicator.

The passenger airbag ON/OFF indicator indicates the operation condition of the instrument panel passenger without door airbag assembly.

DTC B1660/43 is stored when a malfunction is detected in the passenger airbag ON/OFF indicator circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Test Mode / Check Mode
B1660/43 Passenger Airbag ON/OFF Indicator Circuit Malfunction

Any of the following conditions is met:


  • The airbag sensor assembly detects a line short in the passenger airbag ON/OFF indicator circuit.

  • The airbag sensor assembly detects a short to ground in the passenger airbag ON/OFF indicator circuit.

  • The airbag sensor assembly detects a short to B+ in the passenger airbag ON/OFF indicator circuit.

  • The airbag sensor assembly detects an open in the passenger airbag ON/OFF indicator circuit.

  • Passenger airbag ON/OFF indicator malfunction

  • Airbag sensor assembly malfunction

  • Instrument panel wire

  • Instrument panel junction block assembly

  • Passenger airbag ON/OFF indicator (Clock assembly)

  • Airbag sensor assembly

 Does not apply to test/check mode
DTC Detection Conditions:
Vehicle Condition
Pattern 1 Pattern 2 Pattern 3 Pattern 4 Pattern 5 Pattern 6
Diagnosis Condition Ignition switch ON ○ ○ ○ ○ ○ ○
Malfunction Status The airbag sensor assembly detects a line short in the passenger airbag ON/OFF indicator circuit ○ - - - - -
The airbag sensor assembly detects a short to ground in the passenger airbag ON/OFF indicator circuit - ○ - - - -
The airbag sensor assembly detects a short to B+ in the passenger airbag ON/OFF indicator circuit - - ○ - - -
The airbag sensor assembly detects an open in the passenger airbag ON/OFF indicator circuit - - - ○ - -
Passenger airbag ON/OFF indicator malfunction - - - - ○ -
Airbag sensor assembly malfunction - - - - - ○
Detection Time - - - - - -
Number of Trips 1 trip 1 trip 1 trip 1 trip 1 trip 1 trip

Tech Tips

DTC will be output when conditions for either of the patterns in the table above are met.

WIRING DIAGRAM

B008KSWE03

CAUTION / NOTICE / HINT

Note


  • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Click here

  • Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE


  1. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CONDITION


    1. Turn the ignition switch ON.

    2. Check the passenger airbag ON/OFF indicator operation.

      Tech Tips

      Refer to the normal condition of the passenger airbag ON/OFF indicator.

      Click here

      Result
      Result Proceed to
      Passenger airbag ON/OFF indicator illumination is always on. A
      Passenger airbag ON/OFF indicator illumination is always off. B

    B

    CHECK CONNECTORS Click here

    A

  2. CHECK CONNECTORS


    1. Turn the ignition switch off.

    2. 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.

    3. Check that the connectors are properly connected to the airbag sensor assembly, passenger airbag ON/OFF indicator (clock assembly) and instrument panel junction block assembly.

      OK
      The connectors are properly connected.

      Tech Tips

      If the connectors are not properly connected, reconnect the connectors and proceed to the next inspection.

    4. Disconnect the connectors from the airbag sensor assembly, passenger airbag ON/OFF indicator (clock assembly) and instrument panel junction block assembly.

    5. Check that the terminals of the connectors are not deformed or damaged.

      OK
      The terminals are not deformed or damaged.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  3. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CONDITION


    1. Connect the connector to the passenger airbag ON/OFF indicator (clock assembly) and instrument panel junction block assembly.

    2. Connect the cable to the negative (-) battery terminal.

    3. Turn the ignition switch ON.

    4. Check the passenger airbag ON/OFF indicator operation.

      OK
      The passenger airbag ON/OFF indicator does not come on.
      Result
      Proceed to
      OK
      NG

    NG

    CHECK WIRE HARNESS (OPEN) Click here

    OK

  4. CHECK DTC


    1. B008LU2C01
      *A w/o Dual-stage SRS
      *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Passenger Airbag ON/OFF Indicator (Clock Assembly)

      Turn the ignition switch off.

    2. 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.

    3. Connect the connector to the airbag sensor assembly.

    4. Connect the cable to the negative (-) battery terminal.

    5. Clear the DTCs stored in memory.

      Click here


      Body Electrical > SRS Airbag > Clear DTCs

    6. Turn the ignition switch off.

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

    8. Check for DTCs.

      Click here


      Body Electrical > SRS Airbag > Trouble Codes
      OK
      DTC B1660/43 is not output.

      Tech Tips

      Codes other than DTC B1660/43 may be output at this time, but they are not related to this check.

      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

  5. CHECK WIRE HARNESS (OPEN)


    1. Turn the ignition switch off.

      B008LNVC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *5 Service Wire - -
      *a

      Front view of wire harness connector

      (to Airbag Sensor Assembly)

      		 *b

      Front view of wire harness connector

      (to Passenger Airbag ON/OFF Indicator (Clock Assembly))

    2. 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.

    3. Disconnect the connector from the passenger airbag ON/OFF indicator (clock assembly).

    4. Using a service wire, connect terminals 23 (PAON) and 17 (P-AB) of connector B.

      Note

      Do not forcibly insert the service wire into the terminals of the connector when connecting the wire.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F81-4 (PAON) - F81-3 (P-AB) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    CHECK INSTRUMENT PANEL WIRE (OPEN) Click here

    OK

  6. CHECK WIRE HARNESS (SHORT)


    1. Disconnect the service wire from connector B.

      B008M0XC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Passenger Airbag ON/OFF Indicator (Clock Assembly))

      		 - -

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F81-4 (PAON) - F81-3 (P-AB) Always 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    CHECK INSTRUMENT PANEL WIRE (SHORT) Click here

    OK

  7. CHECK WIRE HARNESS (SHORT TO B+)


    1. Connect the cable to the negative (-) battery terminal.

      B008M0XC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Passenger Airbag ON/OFF Indicator (Clock Assembly))

      		 - -

    2. Turn the ignition switch ON.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      F81-4 (PAON) - Body ground ignition switch ON Below 1 V
      F81-3 (P-AB) - Body ground ignition switch ON Below 1 V

    4. Turn the ignition switch off.

    5. 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.

      Result
      Proceed to
      OK
      NG

    NG

    CHECK INSTRUMENT PANEL WIRE (SHORT TO B+) Click here

    OK

  8. CHECK WIRE HARNESS (SHORT TO GROUND)


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

      B008M0XC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Passenger Airbag ON/OFF Indicator (Clock Assembly))

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      F81-4 (PAON) - Body ground Always 1 MΩ or higher
      F81-3 (P-AB) - Body ground Always 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE PASSENGER AIRBAG ON/OFF INDICATOR (CLOCK ASSEMBLY) Click here

    NG

  9. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)


    1. Disconnect the connector from the instrument panel junction block assembly.

      B008LMOC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      		 - -

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3A-8 (PAON) - Body ground Always 1 MΩ or higher
      3A-29 (PAON) - Body ground Always 1 MΩ or higher
      3A-46 (P-AB) - Body ground Always 1 MΩ or higher
      3A-51 (P-AB) - Body ground Always 1 MΩ or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    B

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    C

    REPLACE INSTRUMENT PANEL WIRE

  10. CHECK INSTRUMENT PANEL WIRE (SHORT TO B+)


    1. Disconnect the connector from the instrument panel junction block assembly.

      B008LMOC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      		 - -

    2. Connect the cable to the negative (-) battery terminal.

    3. Turn the ignition switch ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      3A-8 (PAON) - Body ground Ignition switch ON Below 1 V
      3A-29 (PAON) - Body ground Ignition switch ON Below 1 V
      3A-46 (P-AB) - Body ground Ignition switch ON Below 1 V
      3A-51 (P-AB) - Body ground Ignition switch ON Below 1 V

    5. Turn the ignition switch off.

    6. 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.

      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    B

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    C

    REPLACE INSTRUMENT PANEL WIRE

  11. CHECK INSTRUMENT PANEL WIRE (SHORT)


    1. Disconnect the connector from the instrument panel junction block assembly.

      B008LMOC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      		 - -

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3A-8 (PAON) - 3A-46 (P-AB) Always 1 MΩ or higher
      3A-29 (PAON) - 3A-51 (P-AB) Always 1 MΩ or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    B

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    C

    REPLACE INSTRUMENT PANEL WIRE

  12. CHECK INSTRUMENT PANEL WIRE (OPEN)


    1. Disconnect the connector from the instrument panel junction block assembly.

      B008LBSC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *5 Service Wire - -
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      		 *b

      Front view of wire harness connector

      (to Airbag Sensor Assembly)

      Tech Tips

      The service wire has already been inserted into connector B.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3A-8 (PAON) - 3A-46 (P-AB) Always Below 1 Ω

    3. Disconnect the service wire from connector B.

    4. Using a service wire, connect terminals 3 (PAON) and 4 (P-AB) of connector E.

      B008LNMC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *5 Service Wire - -
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      		 *b

      Front view of wire harness connector

      (to Passenger Airbag ON/OFF Indicator (Clock Assembly))

      Note

      Do not forcibly insert the service wire into the terminals of the connector when connecting the wire.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3A-29 (PAON) - 3A-51 (P-AB) Always Below 1 Ω

    6. Disconnect the service wire from connector E.

      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    B

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    C

    REPLACE INSTRUMENT PANEL WIRE

  13. CHECK CONNECTORS


    1. Turn the ignition switch off.

    2. 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.

    3. Check that the connectors are properly connected to the airbag sensor assembly, passenger airbag ON/OFF indicator (clock assembly) and instrument panel junction block assembly.

      OK
      The connectors are properly connected.

      Tech Tips

      If the connectors are not properly connected, reconnect the connectors and proceed to the next inspection.

    4. Disconnect the connectors from the airbag sensor assembly, passenger airbag ON/OFF indicator (clock assembly) and instrument panel junction block assembly.

    5. Check that the terminals of the connectors are not deformed or damaged.

      OK
      The terminals are not deformed or damaged.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  14. CHECK WIRE HARNESS (OPEN)


    1. Connect the connector to the instrument panel junction block assembly.

      B008LNVC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *5 Service Wire - -
      *a

      Front view of wire harness connector

      (to Airbag Sensor Assembly)

      		 *b

      Front view of wire harness connector

      (to Passenger Airbag ON/OFF Indicator (Clock Assembly))

    2. Using a service wire, connect terminals 23 (PAON) and 17 (P-AB) of connector B.

      Note

      Do not forcibly insert the service wire into the terminals of the connector when connecting the wire.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F81-4 (PAON) - F81-3 (P-AB) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    CHECK INSTRUMENT PANEL WIRE (OPEN) Click here

    OK

  15. CHECK WIRE HARNESS (SHORT)


    1. Disconnect the service wire from connector B.

      B008M0XC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Passenger Airbag ON/OFF Indicator (Clock Assembly))

      		 - -

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F81-4 (PAON) - F81-3 (P-AB) Always 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    CHECK INSTRUMENT PANEL WIRE (SHORT) Click here

    OK

  16. CHECK WIRE HARNESS (SHORT TO B+)


    1. Connect the cable to the negative (-) battery terminal.

      B008M0XC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Passenger Airbag ON/OFF Indicator (Clock Assembly))

      		 - -

    2. Turn the ignition switch ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F81-4 (PAON) - Body ground Ignition switch ON Below 1 V
      F81-3 (P-AB) - Body ground Ignition switch ON Below 1 V

    4. Turn the ignition switch off.

    5. 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.

      Result
      Proceed to
      OK
      NG

    NG

    CHECK INSTRUMENT PANEL WIRE (SHORT TO B+) Click here

    OK

  17. CHECK WIRE HARNESS (SHORT TO GROUND)


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

      B008M0XC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Passenger Airbag ON/OFF Indicator (Clock Assembly))

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      F81-4 (PAON) - Body ground Always 1 MΩ or higher
      F81-3 (P-AB) - Body ground Always 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND) Click here

    OK

  18. CHECK PASSENGER AIRBAG ON/OFF INDICATOR (SOURCE VOLTAGE)


    1. Connect the cable to the negative (-) battery terminal.

      B008M0XC03
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3 Passenger Airbag ON/OFF Indicator (Clock Assembly) *4 Instrument Panel Wire
      *a Front view of wire harness connector (to Passenger Airbag ON/OFF Indicator (Clock Assembly)) - -

    2. Turn the ignition switch ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      F81-7 (B) - Body ground Ignition switch ON 11 to 14 V

    4. Turn the ignition switch off.

    5. 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.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE WIRE HARNESS OR BATTERY

    OK

  19. CHECK PASSENGER AIRBAG ON/OFF INDICATOR


    1. Connect the connector to the passenger airbag ON/OFF indicator (clock assembly).

      B008MBJC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3 Passenger Airbag ON/OFF Indicator (Clock Assembly) *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Airbag Sensor Assembly)

      		 - -

    2. Connect the cable to the negative (-) battery terminal.

    3. Turn the ignition switch ON.

    4. Check the passenger airbag ON/OFF indicator according to the conditions in the table below.

      OK
      Terminal Connection Switch Condition Specified Condition
      F70-23 (PAON) - Body ground Ignition switch ON "ON" comes on
      F70-17 (P-AB) - Body ground Ignition switch ON "OFF" comes on

    5. Turn the ignition switch off.

    6. 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.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PASSENGER AIRBAG ON/OFF INDICATOR (CLOCK ASSEMBLY) Click here

    OK

  20. CHECK DTC


    1. B008LU2C01
      *A w/o Dual-stage SRS
      *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Passenger Airbag ON/OFF Indicator (Clock Assembly)

      Connect the connector to the airbag sensor assembly.

    2. Connect the cable to the negative (-) battery terminal.

    3. Clear the DTCs stored in memory.

      Click here


      Body Electrical > SRS Airbag > Clear DTCs

    4. Turn the ignition switch off.

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

    6. Check for DTCs.

      Click here


      Body Electrical > SRS Airbag > Trouble Codes
      OK
      DTC B1660/43 is not output.

      Tech Tips

      Codes other than DTC B1660/43 may be output at this time, but they are not related to this check.

      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

  21. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)


    1. Disconnect the connector from the instrument panel junction block assembly.

      B008LMOC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      		 - -

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3A-8 (PAON) - Body ground Always 1 MΩ or higher
      3A-29 (PAON) - Body ground Always 1 MΩ or higher
      3A-46 (P-AB) - Body ground Always 1 MΩ or higher
      3A-51 (P-AB) - Body ground Always 1 MΩ or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    B

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    C

    REPLACE INSTRUMENT PANEL WIRE

  22. CHECK INSTRUMENT PANEL WIRE (SHORT TO B+)


    1. Disconnect the connector from the instrument panel junction block assembly.

      B008LMOC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      		 - -

    2. Connect the cable to the negative (-) battery terminal.

    3. Turn the ignition switch ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      3A-8 (PAON) - Body ground Ignition switch ON Below 1 V
      3A-29 (PAON) - Body ground Ignition switch ON Below 1 V
      3A-46 (P-AB) - Body ground Ignition switch ON Below 1 V
      3A-51 (P-AB) - Body ground Ignition switch ON Below 1 V

    5. Turn the ignition switch off.

    6. 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.

      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    B

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    C

    REPLACE INSTRUMENT PANEL WIRE

  23. CHECK INSTRUMENT PANEL WIRE (SHORT)


    1. Disconnect the connector from the instrument panel junction block assembly.

      B008LMOC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      		 - -

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3A-8 (PAON) - 3A-46 (P-AB) Always 1 MΩ or higher
      3A-29 (PAON) - 3A-51 (P-AB) Always 1 MΩ or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    B

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    C

    REPLACE INSTRUMENT PANEL WIRE

  24. CHECK INSTRUMENT PANEL WIRE (OPEN)


    1. Disconnect the connector from the instrument panel junction block assembly.

      B008LBSC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *5 Service Wire - -
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      		 *b

      Front view of wire harness connector

      (to Airbag Sensor Assembly)

      Tech Tips

      The service wire has already been inserted into connector B.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3A-8 (PAON) - 3A-46 (P-AB) Always Below 1 Ω

    3. Disconnect the service wire from connector B.

    4. Using a service wire, connect terminals 3 (PAON) and 4 (P-AB) of connector E.

      B008LNMC01
      *A w/o Dual-stage SRS *B w/ Dual-stage SRS
      *1 Instrument Panel Junction Block Assembly *2 Airbag Sensor Assembly
      *3

      Passenger Airbag ON/OFF Indicator

      (Clock Assembly)

      		 *4 Instrument Panel Wire
      *5 Service Wire - -
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      		 *b

      Front view of wire harness connector

      (to Passenger Airbag ON/OFF Indicator (Clock Assembly))

      Note

      Do not forcibly insert the service wire into the terminals of the connector when connecting the wire.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3A-29 (PAON) - 3A-51 (P-AB) Always Below 1 Ω

    6. Disconnect the service wire from connector E.

      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    B

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    C

    REPLACE INSTRUMENT PANEL WIRE