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Home >> Acura >> 2017 >> MDX Base >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (SRS) - Diagnostics (3 Of 3) (Except Hybrid) >> DTC Troubleshooting >> DTC B00C2-87

DTC B00C2-87

DTC B00C2-87  : No Signal From the Front Passenger's Weight Sensor (rear inner side)

DTC Description DTC
B00C2-87 No signal from the front passenger's weight sensor (rear inner side)  

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
    B00C2-87 No signal from the front passenger's weight sensor (rear inner side)  

    Is DTC B00C2-87 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. Open wire check (SWSP line)

    -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 connectors.

    SRS unit connector B (39P)
    Front passenger's weight sensor (rear inner side) 3P connector (on the front passenger's seat wire harness)

    - 4. Measure the resistance between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      SRS unit connector B (39P)
      Front passenger's weight sensor (rear inner side) 3P connector (on the front passenger's seat wire harness): disconnected
    Test point 1 SRS unit connector B (39P) No. 26 - Refer to: SRS Unit Connector for Inputs and Outputs (2017 2018 2019 2020)
    Test point 2 Front passenger's weight sensor (rear inner side) 3P connector (female terminals) No. 1 (on the front passenger's seat wire harness):
    GHH328336Courtesy of HONDA, U.S.A., INC.

    Is there 1.0 Ω or less?

    YES 

    The SWSP wire is OK. Go to step 3.

    NO 

    Open in the floor wire harness or the front passenger's seat wire harness; replace the faulty harness, then clear the DTC.

  3. Open wire check (SWSG line)

    -1. Measure the resistance between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      SRS unit connector B (39P)
      Front passenger's weight sensor (rear inner side) 3P connector (on the front passenger's seat wire harness): disconnected
    Test point 1 SRS unit connector B (39P) No. 28 - Refer to: SRS Unit Connector for Inputs and Outputs (2017 2018 2019 2020),
    Test point 2 Front passenger's weight sensor (rear inner side) 3P connector (female terminals) No. 3 (on the front passenger's seat wire harness):
    GHH328338Courtesy of HONDA, U.S.A., INC.

    Is there 1.0 Ω or less?

    YES 

    The SWSG wire is OK. Go to step 4.

    NO 

    Open in the floor wire harness or the front passenger's seat wire harness; replace the faulty harness, then clear the DTC.

  4. Open wire check (SWSS line)

    -1. Measure the resistance between test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
    SRS unit connector B (39P): disconnected
      Front passenger's weight sensor (rear inner side) 3P connector (on the front passenger's seat wire harness): disconnected
    Test point 1 SRS unit connector B (39P) No. 30 - Refer to: SRS Unit Connector for Inputs and Outputs (2017 2018 2019 2020),
    Test point 2 Front passenger's weight sensor (rear inner side) 3P connector (female terminals) No. 2 (on the front passenger's seat wire harness):
    GHH328340Courtesy of HONDA, U.S.A., INC.

    Is there 1.0 Ω or less?

    YES 

    Go to step 5.

    NO 

    Open in the floor wire harness or the front passenger's seat wire harness; replace the faulty harness, then clear the DTC.

  5. Front passenger's weight sensor check

    -1. Substitute a known-good front passenger's weight sensors as an assembly.

    - 2. Reconnect the following connectors.

    SRS unit connector B (39P)
    Front passenger's weight sensor (front inner side) 3P connector (on the front passenger's seat wire harness)
    Front passenger's weight sensor (rear inner side) 3P connector (on the front passenger's seat wire harness)
    Front passenger's weight sensor (front outer side) 3P connector (on the front passenger's seat wire harness)
    Front passenger's weight sensor (rear outer side) 3P connector (on the front passenger's seat wire harness)

    - 3. Reconnect the negative cable to the 12 volt battery.

    - 4. Clear the DTCs with the HDS.

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

    - 6. Check for DTCs with the HDS.

    DTC Description DTC
    B00C2-87 No signal from the front passenger's weight sensor (rear inner side)  

    Is DTC B00C2-87 indicated?

    YES 

    The front passenger's weight sensor is OK. Faulty SRS unit or poor connection at SRS unit connector B (39P) and the SRS unit. Check the connection; if the connection is OK, check for any authorized service information related to the DTCs or symptoms you are troubleshooting or replace the SRS unit - Refer to: SRS Unit Removal and Installation (2017 2018 2019 2020), .

    NO 

    Faulty front passenger's weight sensor. Replace the front passenger's weight sensors as an assembly - Refer to: Front Passenger's Weight Sensor Removal and Installation (2017 2018 2019 2020), .