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Home >> Acura >> 2017 >> MDX Base >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (SRS) - Diagnostics (2 Of 3) (Except Hybrid) >> DTC Troubleshooting >> DTC B007A-12 (2017 2018 2019 2020)

DTC B007A-12 (2017 2018 2019 2020)

DTC B007A-12  : Short to Power in the Front Passenger's Seat Belt Outer Lap Tensioner

Special Tools Required 

-SRS Inflator Simulator 07SAZ-TB4011A 

-SRS Simulator Lead M 070AZ-SNAA400 

DTC Description DTC
B007A-12 Short to power in the front passenger's seat belt outer lap tensioner  

DTC (SRS)

  1. Problem verification

    -1. Clear the DTCs with the HDS.

    - 2. Turn the vehicle to the ON mode, then wait for 10 seconds.

    - 3. Check for DTCs with the HDS.

    DTC Description DTC
    B007A-12 Short to power in the front passenger's seat belt outer lap tensioner  

    Is DTC B007A-12 indicated?

    YES 

    The failure is duplicated. Go to step 2.

    NO 

    Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, troubleshoot the DTC.

  2. Front passenger's seat belt outer lap tensioner check

    -1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Disconnect the negative cable from the battery, then wait at least 3 minutes.

    - 3. Disconnect the front passenger's seat belt outer lap tensioner 2P connector (A) on the floor wire harness.

    GHH328217Courtesy of HONDA, U.S.A., INC.

    - 4. Connect the terminals of SRS simulator lead M to the SRS inflator simulator (2 Ω connectors), then connect SRS simulator lead M to the front passenger's seat belt outer lap tensioner 2P connector on the floor wire harness.

    - 5. Reconnect the negative cable to the battery.

    - 6. Clear the DTCs with the HDS.

    - 7. Turn the vehicle to the ON mode, then wait for 10 seconds.

    - 8. Check for DTCs with the HDS.

    DTC Description DTC
    B007A-12 Short to power in the front passenger's seat belt outer lap tensioner  

    Is DTC B007A-12 indicated?

    YES 

    Go to step 3.

    NO 

    Short to power in the front passenger's seat belt outer lap tensioner; replace the front passenger's seat belt outer lap tensioner , then clear the DTC.

  3. Shorted wire check (RLAP P+, RLAP P- lines to power)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    - 2. Disconnect the negative cable from the battery, then wait at least 3 minutes.

    - 3. Disconnect the following connector.

    SRS unit connector B (39P)

    - 4. Disconnect SRS simulator lead M from the front passenger's seat belt outer lap tensioner 2P connector on the floor wire harness.

    - 5. Reconnect the negative cable to the battery.

    - 6. Turn the vehicle to the ON mode.

    - 7. Measure the voltage between test points 1 and 2.

    Test condition Vehicle ON mode
    SRS unit connector B (39P): disconnected
    Right front seat belt outer lap tensioner 2P connector (on the floor wire harness): disconnected
    Test point 1 SRS unit connector B (39P) No. 22 - Refer to: SRS Unit Connector for Inputs and Outputs (2017 2018 2019 2020),
    Test point 2 Body ground
    Test point 1 SRS unit connector B (39P) No. 23 - Refer to: SRS Unit Connector for Inputs and Outputs (2017 2018 2019 2020)
    Test point 2 Body ground

    Is there 0.2 V or less?

    YES 

    The RLAP P+ and RLAP P- wires are OK. Faulty SRS unit or poor connection at SRS unit connector B (39P) and the SRS unit. Check the connection between the connector and the SRS unit. If the connection is OK, replace the SRS unit - Refer to: SRS Unit Removal and Installation (2017 2018 2019 2020) . If the DTC does not clear, replace the floor wire harness.

    NO 

    Short to power in the floor wire harness; replace the floor wire harness, then clear the DTC.