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 (air conditioning control assembly).

The passenger airbag ON/OFF indicator indicates the operation condition of the instrument panel passenger airbag assembly and lower No. 2 instrument panel 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

  • The airbag sensor assembly detects a line short, short to ground or B+, or 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 (Air conditioning control assembly)

  • Airbag sensor assembly

 Applies to check mode

WIRING DIAGRAM

B003YI7E01

CAUTION / NOTICE / HINT

Note


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

    Click here

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

Tech Tips


  • Perform the simulation method by selecting check mode (Signal Check) using the GTS.

    Click here

  • 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 road or rough road.

    Click here

PROCEDURE


  1. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CONDITION


    1. Turn the power switch on (IG).

    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
      ON/OFF Indicator illumination is always "ON". A
      ON/OFF Indicator illumination is always "OFF". B

    B

    CHECK CONNECTORS Click here

    A

  2. CHECK CONNECTORS


    1. Turn the power switch off.

    2. Disconnect the cable from the negative (-) auxiliary battery terminal.

      CAUTION:

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

    3. Check that the connectors are properly connected to the airbag sensor assembly, air conditioning control 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, air conditioning control assembly and instrument panel junction block assembly.

    5. Check that the terminals of the connectors are not 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


    1. Connect the connector to the air conditioning control assembly and instrument panel junction block assembly.

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

    3. Turn the power switch on (IG).

    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. B003YBQC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly

      Turn the power switch off.

    2. Disconnect the cable from the negative (-) auxiliary battery terminal.

      CAUTION:

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

    3. Connect the connector to the airbag sensor assembly.

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

    5. Clear the DTCs stored in memory.

      Click here


      Body Electrical > SRS Airbag > Clear DTCs

    6. Turn the power switch off.

    7. Turn the power switch on (IG), 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. B003XTJC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control 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 Air Conditioning Control Assembly)

      Turn the power switch off.

    2. Disconnect the cable from the negative (-) auxiliary battery terminal.

      CAUTION:

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

    3. Disconnect the connector from the air conditioning control 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
      K65-13 (PAON) - K65-12 (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. B003Y2IC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Air Conditioning Control Assembly)

      Disconnect the service wire from connector B.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K65-13 (PAON) - K65-12 (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. B003Y2IC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Air Conditioning Control Assembly)

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

    2. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      K65-13 (PAON) - Body ground Power switch on (IG) Below 1 V
      K65-12 (P-AB) - Body ground Power switch on (IG) Below 1 V

    4. Turn the power switch off.

    5. Disconnect the cable from the negative (-) auxiliary battery terminal.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary 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. B003Y2IC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Air Conditioning Control Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K65-13 (PAON) - Body ground Always 1 MΩ or higher
      K65-12 (P-AB) - Body ground Always 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE PASSENGER AIRBAG ON/OFF INDICATOR (AIR CONDITIONING CONTROL ASSEMBLY) Click here

    NG

  9. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)


    1. B003XUYC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      Disconnect the connector from the 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
      4A-46 (PAON) - Body ground Always 1 MΩ or higher
      4A-48 (PAON) - Body ground Always 1 MΩ or higher
      4A-26 (P-AB) - Body ground Always 1 MΩ or higher
      4A-38 (P-AB) - Body ground Always 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    NG

    REPLACE INSTRUMENT PANEL WIRE

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


    1. B003XUYC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      Disconnect the connector from the 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
      4A-46 (PAON) - Other terminals Always 1 MΩ or higher
      4A-48 (PAON) - Other terminals Always 1 MΩ or higher
      4A-26 (P-AB) - Other terminals Always 1 MΩ or higher
      4A-38 (P-AB) - Other terminals Always 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    NG

    REPLACE INSTRUMENT PANEL WIRE

  11. CHECK INSTRUMENT PANEL WIRE (SHORT)


    1. B003XUYC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      Disconnect the connector from the 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
      4A-46 (PAON) - 4A-26 (P-AB) Always 1 MΩ or higher
      4A-48 (PAON) - 4A-38 (P-AB) Always 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    NG

    REPLACE INSTRUMENT PANEL WIRE

  12. CHECK INSTRUMENT PANEL WIRE (OPEN)


    1. B003YBGC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control 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)

      Disconnect the connector from the instrument panel junction block 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
      4A-46 (PAON) - 4A-26 (P-AB) Always Below 1 Ω

    3. Disconnect the service wire from connector B.

    4. B003Y3UC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control 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 Air Conditioning Control Assembly)

      Using a service wire, connect terminals 13 (PAON) and 12 (P-AB) of connector E.

      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
      4A-48 (PAON) - 4A-38 (P-AB) Always Below 1 Ω

    6. Disconnect the service wire from connector E.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    NG

    REPLACE INSTRUMENT PANEL WIRE

  13. CHECK CONNECTORS


    1. Turn the power switch off.

    2. Disconnect the cable from the negative (-) auxiliary battery terminal.

      CAUTION:

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

    3. Check that the connectors are properly connected to the airbag sensor assembly, air conditioning control 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, air conditioning control assembly and instrument panel junction block assembly.

    5. Check that the terminals of the connectors are not 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. B003XTJC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control 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 Air Conditioning Control Assembly)

      Connect the connector to the instrument panel junction block 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
      K65-13 (PAON) - K65-12 (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. B003Y2IC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Air Conditioning Control Assembly)

      Disconnect the service wire from connector B.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K65-13 (PAON) - K65-12 (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. B003Y2IC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Air Conditioning Control Assembly)

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

    2. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      K65-13 (PAON) - Body ground Power switch on (IG) Below 1 V
      K65-12 (P-AB) - Body ground Power switch on (IG) Below 1 V

    4. Turn the power switch off.

    5. Disconnect the cable from the negative (-) auxiliary battery terminal.

      CAUTION:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary 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. B003Y2IC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Air Conditioning Control Assembly)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K65-13 (PAON) - Body ground Always 1 MΩ or higher
      K65-12 (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. B003Y2IC02
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Air Conditioning Control Assembly)

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

    2. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      K65-8 (IG+) - Body ground Power switch on (IG) 11 to 14 V

    4. Turn the power switch off.

    5. Disconnect the cable from the negative (-) auxiliary battery terminal.

      CAUTION:

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

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE WIRE HARNESS OR AUXILIARY BATTERY

    OK

  19. CHECK PASSENGER AIRBAG ON/OFF INDICATOR


    1. B003XYCC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Airbag Sensor Assembly)

      Connect the connector to the air conditioning control assembly.

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

    3. Turn the power switch on (IG).

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

      OK
      Terminal Connection Condition Specified Condition
      K51-23 (PAON) - Body ground Power switch on (IG) "ON" comes on
      K51-17 (P-AB) - Body ground Power switch on (IG) "OFF" comes on

    5. Turn the power switch off.

    6. Disconnect the cable from the negative (-) auxiliary battery terminal.

      CAUTION:

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

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PASSENGER AIRBAG ON/OFF INDICATOR (AIR CONDITIONING CONTROL ASSEMBLY) Click here

    OK

  20. CHECK DTC


    1. B003YBQC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly

      Connect the connector to the airbag sensor assembly.

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

    3. Clear the DTCs stored in memory.

      Click here


      Body Electrical > SRS Airbag > Clear DTCs

    4. Turn the power switch off.

    5. Turn the power switch on (IG), 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. B003XUYC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      Disconnect the connector from the 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
      4A-46 (PAON) - Body ground Always 1 MΩ or higher
      4A-48 (PAON) - Body ground Always 1 MΩ or higher
      4A-26 (P-AB) - Body ground Always 1 MΩ or higher
      4A-38 (P-AB) - Body ground Always 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    NG

    REPLACE INSTRUMENT PANEL WIRE

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


    1. B003XUYC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      Disconnect the connector from the 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
      4A-46 (PAON) - Other terminals Always 1 MΩ or higher
      4A-48 (PAON) - Other terminals Always 1 MΩ or higher
      4A-26 (P-AB) - Other terminals Always 1 MΩ or higher
      4A-38 (P-AB) - Other terminals Always 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    NG

    REPLACE INSTRUMENT PANEL WIRE

  23. CHECK INSTRUMENT PANEL WIRE (SHORT)


    1. B003XUYC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control Assembly
      *4 Instrument Panel Wire
      *a

      Front view of wire harness connector

      (to Instrument Panel Junction Block Assembly)

      Disconnect the connector from the 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
      4A-46 (PAON) - 4A-26 (P-AB) Always 1 MΩ or higher
      4A-48 (PAON) - 4A-38 (P-AB) Always 1 MΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    NG

    REPLACE INSTRUMENT PANEL WIRE

  24. CHECK INSTRUMENT PANEL WIRE (OPEN)


    1. B003YBGC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control 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)

      Disconnect the connector from the instrument panel junction block 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
      4A-46 (PAON) - 4A-26 (P-AB) Always Below 1 Ω

    3. Disconnect the service wire from connector B.

    4. B003Y3UC01
      *1 Instrument Panel Junction Block Assembly
      *2 Airbag Sensor Assembly
      *3 Air Conditioning Control 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 Air Conditioning Control Assembly)

      Using a service wire, connect terminals 13 (PAON) and 12 (P-AB) of connector E.

      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
      4A-48 (PAON) - 4A-38 (P-AB) Always Below 1 Ω

    6. Disconnect the service wire from connector E.

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    NG

    REPLACE INSTRUMENT PANEL WIRE