AIRBAG SYSTEM, Diagnostic DTC:B0133/62

DTC Code DTC Name
B0133/62 Short to B+ in Front Pretensioner Squib RH Circuit

DESCRIPTION

The P/T squib (RH) circuit consists of the airbag ECU assembly and seat belt pretensioner (RH).

It causes the SRS to deploy when the SRS deployment conditions are satisfied.

DTC B0133/62 is recorded when a B+ short is detected in the P/T squib (RH) circuit.

DTC No. DTC Detecting Condition Trouble Area
B0133/62

  • Short circuit in seat belt pretensioner (RH) wire harness (to B+)

  • P/T squib (RH) malfunction

  • Airbag ECU assembly malfunction

  • Seat belt pretensioner (RH)

  • Airbag ECU assembly

  • Wire harness

WIRING DIAGRAM

Click here.

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK P/T SQUIB(RH) CIRCUIT (AIRBAG ECU ASSEMBLY-FRONT SEAT OUTER BELT ASSEMBLY RH)


    1. A01KIQ4E01
      Text in Illustration
      *1 P/T Squib (RH)
      *2 Airbag ECU Assembly

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

    2. Disconnect the connector between the airbag ECU assembly and the seat belt pretensioner (RH).

    3. Connect negative (-) terminal cable to the battery, and turn the ignition switch to ON.

    4. For the connector (on the seat belt pretensioner side) between the seat belt pretensioner (RH) and the airbag ECU assembly, measure the voltage between PR+ and body ground.

      OK
      Voltage: Below 1 V

    NG

    CHECK COWL WIRE (AIRBAG ECU ASSEMBLY-FRONT SEAT OUTER BELT ASSEMBLY RH) Click here

    OK

  2. CHECK AIR BAG ECU ASSEMBLY

    SST
    09843-18040

    1. A01KH7SE01
      Text in Illustration
      *1 P/T Squib (RH)
      *2 Airbag ECU Assembly
      *3 DLC3
      *a DTC B0133/62

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

    2. Connect the connector to the airbag ECU assembly.

    3. Using SST, connect PR+ and PR- of the connector (on the seat belt pretensioner side) between the seat belt pretensioner (RH) and the airbag ECU assembly.

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

    5. Turn the ignition switch to ON and wait at least for 20 seconds.

    6. Clear the DTC stored in memory Click here.

    7. Turn the ignition switch to LOCK, and wait at least for 20 seconds.

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

    9. Check the DTC Click here.

      OK
      DTC B0133/62 is not output.

      Tech Tips

      Codes other than code B0133/62 may be output at this time, but they are not relevant to this check.


    NG

    REPLACE AIR BAG ECU ASSEMBLY

    OK

  3. CHECK P/T SQUIB (RH)

    SST
    09843-18040

    1. A01KFCTE01
      Text in Illustration
      *1 P/T Squib (RH)
      *2 Airbag ECU Assembly
      *3 DLC3
      *a DTC B0133/62

      Turn ignition switch to LOCK.

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

    3. Connect the seat belt pretensioner (RH) connector.

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

    5. Turn the ignition switch to ON, and wait at least for 20 seconds.

    6. Clear the DTC stored in memory Click here.

    7. Turn the ignition switch to LOCK, and wait at least for 20 seconds.

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

    9. Check the DTC Click here.

      OK
      DTC B0133/62 is not output.

      Tech Tips

      Codes other than code B0133/62 may be output at this time, but they are not relevant to this check.


    NG

    REPLACE FRONT SEAT OUTER BELT ASSEMBLY RH

    OK

  4. USE SIMULATION METHOD TO CHECK


    NG

    CHECK P/T SQUIB(RH) CIRCUIT (AIRBAG ECU ASSEMBLY-FRONT SEAT OUTER BELT ASSEMBLY RH) Click here

    OK

    REPLACE ALL SRS COMPONENTS INCLUDING THE WIRE HARNESS

  5. CHECK COWL WIRE (AIRBAG ECU ASSEMBLY-FRONT SEAT OUTER BELT ASSEMBLY RH)


    1. A01KGR4E01
      Text in Illustration
      *1 P/T Squib (RH)
      *2 Cowl Wire
      *3 Airbag ECU Assembly

      Disconnect the connectors of the cowl wire and floor wire.

    2. For the cowl wire connector (on the seat belt pretensioner side), measure the voltage between PR+ and body ground.

      OK
      Voltage: Below 1 V

    NG

    REPAIR OR REPLACE COWL WIRE

    OK

  6. CHECK FLOOR WIRE (AIRBAG ECU ASSEMBLY-FRONT SEAT OUTER BELT ASSEMBLY RH)


    1. A01KIGWE01
      Text in Illustration
      *1 P/T Squib (RH)
      *2 Floor Wire
      *3 Airbag ECU Assembly

      For the floor wire connector (on the seat belt pretensioner side), measure the voltage between PR+ and body ground.

      OK
      Voltage: Below 1 V

    NG

    REPAIR OR REPLACE FLOOR WIRE

    OK

  7. USE SIMULATION METHOD TO CHECK


    NG

    CHECK P/T SQUIB(RH) CIRCUIT (AIRBAG ECU ASSEMBLY-FRONT SEAT OUTER BELT ASSEMBLY RH) Click here

    OK

    REPLACE ALL SRS COMPONENTS INCLUDING THE WIRE HARNESS