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Home >> Acura >> 2021 >> ILX >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (SRS) - DTC Diagnostics (2 Of 3) (Except Hybrid) >> DTC Troubleshooting >> DTC B0096-87, B0097-87

DTC B0096-87, B0097-87

DTC B0096-87  : No Signal From the Right Side Impact Sensor (first)

DTC B0097-87  : No Signal From the Right Side Impact Sensor (second)

DTC Description DTC
B0096-87 No signal from the right side impact sensor (first)  
B0097-87 No signal from the right side impact sensor (second)  

DTC (SRS)

  1. DTC check

    -1. Clear the DTCs with the HDS .

    -2. Press the engine start/stop button to select the ON mode, then wait for 10 seconds.

    -3. Check for DTCs with the HDS .

    DTC Description DTC
    B0096-4A Internal failure of the right side impact sensor (first)  
    B0096-87 No signal from the right side impact sensor (first)  
    B0096-92 Internal failure of the right side impact sensor (first)  
    B0097-4A Internal failure of the right side impact sensor (second)  
    B0097-87 No signal from the right side impact sensor (second)  
    B0097-92 Internal failure of the right side impact sensor (second)  

    Are DTCs indicated?

    DTC B0096-87 

    Go to step 2.

    DTC B0097-87 

    Go to step 12.

    DTC B0096-4A or B0096-92 

    Replace the right side impact sensor (first) , then clear the DTC.

    DTC B0097-4A or B0097-92 

    Replace the right side impact sensor (second) , then clear the DTC.

    NO DTC 

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

  2. Connector connection check

    -1. Press the engine start/stop button to select the OFF mode.

    -2. Check the following connector connections.

    SRS unit connector B (39P)
    Right side impact sensor (first) 4P connector (on the floor wire harness)
    Right side impact sensor (second) 2P connector (on the floor wire harness)

    Are the connectors OK?

    YES 

    Go to step 4.

    NO 

    Go to step 3.

  3. System check

    -1. Reset the loose connector connections whichever was the cause of the problem in step 2.

    -2. Clear the DTCs with the HDS .

    -3. Press the engine start/stop button to select the ON mode, then wait for 10 seconds.

    -4. Check for DTCs with the HDS .

    DTC Description DTC
    B0096-87 No signal from the right side impact sensor (first)  

    Is DTC B0096-87 indicated?

    YES 

    Press the engine start/stop button to select the OFF mode, then go to step 4.

    NO 

    The system is OK at this time.

  4. Right side impact sensor (first) substituting

    -1. Substitute a known-good right side impact sensor (first) .

    -2. Reconnect the negative cable to the battery.

    -3. Clear the DTCs with the HDS .

    -4. Press the engine start/stop button to select the ON mode, then wait for 10 seconds.

    -5. Check for DTCs with the HDS .

    DTC Description DTC
    B0096-87 No signal from the right side impact sensor (first)  

    Is DTC B0096-87 indicated?

    YES 

    Go to step 5.

    NO 

    Replace the right side impact sensor (first) , then clear the DTC.

  5. Shorted wire check (RS1+ line to RS1- line)

    -1. Press the engine start/stop button to select the OFF 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)
    Right side impact sensor (first) 4P connector (on the floor wire harness)
    Right side impact sensor (second) 2P connector (on the floor wire harness)

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

    Test condition OFF mode
    SRS unit connector B (39P): disconnected
    Right side impact sensor (first) 4P connector (on the floor wire harness): disconnected
    Right side impact sensor (second) 2P connector (on the floor wire harness): disconnected
    Test circuit RS1+, RS1-
    Test point 1 Right side impact sensor (first) 4P connector No. 2 (on the floor wire harness)
    Test point 2 Right side impact sensor (first) 4P connector No. 3 (on the floor wire harness)
    GHH475365Courtesy of HONDA, U.S.A., INC.

    Is there an open circuit, or at least 1 MΩ?

    YES 

    The RS1+ and RS1- wires are not shorted. Go to step 6.

    NO 

    Short to another wire in the floor wire harness between the SRS unit and the right side impact sensor (first); replace the floor wire harness, then clear the DTC.

  6. Shorted wire check (RS2+ line to RS2- line)

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

    Test condition OFF mode
    SRS unit connector B (39P): disconnected
    Right side impact sensor (first) 4P connector (on the floor wire harness): disconnected
    Right side impact sensor (second) 2P connector (on the floor wire harness): disconnected
    Test circuit RS2+, RS2-
    Test point 1 Right side impact sensor (first) 4P connector No. 1 (on the floor wire harness)
    Test point 2 Right side impact sensor (first) 4P connector No. 4 (on the floor wire harness)
    GHH475366Courtesy of HONDA, U.S.A., INC.

    Is there an open circuit, or at least 1 MΩ?

    YES 

    The RS2+ and RS2- wires are not shorted. Go to step 7.

    NO 

    Short to another wire in the floor wire harness between the right side impact sensor (first) and the right side impact sensor (second); replace the floor wire harness, then clear the DTC.

  7. Shorted wire check (RS1+, RS1- lines)

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

    Test condition OFF mode
    SRS unit connector B (39P): disconnected
    Right side impact sensor (first) 4P connector (on the floor wire harness): disconnected
    Right side impact sensor (second) 2P connector (on the floor wire harness): disconnected
    Test circuit RS1+
    Test point 1 Right side impact sensor (first) 4P connector No. 3 (on the floor wire harness)
    Test point 2 Body ground
    Test circuit RS1-
    Test point 1 Right side impact sensor (first) 4P connector No. 2 (on the floor wire harness)
    Test point 2 Body ground
    GHH475367Courtesy of HONDA, U.S.A., INC.

    Is there an open circuit, or at least 1 MΩ?

    YES 

    The RS1+ and RS1- wires are not shorted. Go to step 8.

    NO 

    Short to ground in the floor wire harness between the SRS unit and the right side impact sensor (first); replace the floor wire harness, then clear the DTC.

  8. Shorted wire check (RS2+, RS2- lines)

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

    Test condition OFF mode
    SRS unit connector B (39P): disconnected
    Right side impact sensor (first) 4P connector (on the floor wire harness): disconnected
    Right side impact sensor (second) 2P connector (on the floor wire harness): disconnected
    Test circuit RS2+
    Test point 1 Right side impact sensor (first) 4P connector No. 1 (on the floor wire harness)
    Test point 2 Body ground
    Test circuit RS2-
    Test point 1 Right side impact sensor (first) 4P connector No. 4 (on the floor wire harness)
    Test point 2 Body ground
    GHH475368Courtesy of HONDA, U.S.A., INC.

    Is there an open circuit, or at least 1 MΩ?

    YES 

    The RS2+ and RS2- wires are not shorted. Go to step 9.

    NO 

    Short to ground in the floor wire harness between the right side impact sensor (first) and the right side impact sensor (second); replace the floor wire harness, then clear the DTC.

  9. Shorted wire check (RS1+, RS1- lines to power)

    -1. Reconnect the negative cable to the battery.

    -2. Press the engine start/stop button to select the ON mode.

    -3. Measure the voltage between test points 1 and 2.

    Test condition ON mode
    SRS unit connector B (39P): disconnected
    Right side impact sensor (first) 4P connector (on the floor wire harness): disconnected
    Right side impact sensor (second) 2P connector (on the floor wire harness): disconnected
    Test circuit RS1+
    Test point 1 Right side impact sensor (first) 4P connector No. 3 (on the floor wire harness)
    Test point 2 Body ground
    Test circuit RS1-
    Test point 1 Right side impact sensor (first) 4P connector No. 2 (on the floor wire harness)
    Test point 2 Body ground
    GHH475369Courtesy of HONDA, U.S.A., INC.

    Is there 0.2 V or less?

    YES 

    The RS1+ and RS1- wires are not shorted to power. Go to step 10.

    NO 

    Short to power in the floor wire harness between the SRS unit and the right side impact sensor (first); replace the floor wire harness, then clear the DTC.

  10. Shorted wire check (RS2+, RS2- lines to power)

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

    Test condition ON mode
    SRS unit connector B (39P): disconnected
    Right side impact sensor (first) 4P connector (on the floor wire harness): disconnected
    Right side impact sensor (second) 2P connector (on the floor wire harness): disconnected
    Test circuit RS2+
    Test point 1 Right side impact sensor (first) 4P connector No. 1 (on the floor wire harness)
    Test point 2 Body ground
    Test circuit RS2-
    Test point 1 Right side impact sensor (first) 4P connector No. 4 (on the floor wire harness)
    Test point 2 Body ground
    GHH475370Courtesy of HONDA, U.S.A., INC.

    Is there 0.2 V or less?

    YES 

    The RS2+ and RS2- wires are not shorted to power. Go to step 11.

    NO 

    Short to power in the floor wire harness between the right side impact sensor (first) and the right side impact sensor (second); replace the floor wire harness, then clear the DTC.

  11. Open wire check (RS1+, RS1- lines)

    -1. Press the engine start/stop button to select the OFF mode.

    -2. Connect terminals A and B with a jumper wire.

    Terminal A SRS unit connector B (39P) No. 26
    Terminal B SRS unit connector B (39P) No. 27
    GHH475371Courtesy of HONDA, U.S.A., INC.

    -3. Measure the resistance between test points 1 and 2.

    Test condition OFF mode
    SRS unit connector B (39P): disconnected
    Right side impact sensor (first) 4P connector (on the floor wire harness): disconnected
    Right side impact sensor (second) 2P connector (on the floor wire harness): disconnected
    SRS unit connector B (39P) terminals No. 26 and No. 27: jumped
    Test circuit RS1+, RS1-
    Test point 1 Right side impact sensor (first) 4P connector No. 2 (on the floor wire harness)
    Test point 2 Right side impact sensor (first) 4P connector No. 3 (on the floor wire harness)
    GHH475372Courtesy of HONDA, U.S.A., INC.

    Is there 1.0 Ω or less?

    YES 

    The RS1+ and RS1- wires are OK. Disconnect and reconnect the connector, and then check the DTC again. If the DTC is still present, replace the SRS unit .

    NO 

    Open in the floor wire harness between the SRS unit and the right side impact sensor (first); replace the floor wire harness, then clear the DTC.

  12. Connector connection check

    -1. Press the engine start/stop button to select the OFF mode.

    -2. Check the following connector connections.

    SRS unit connector B (39P)
    Right side impact sensor (first) 4P connector (on the floor wire harness)
    Right side impact sensor (second) 2P connector (on the floor wire harness)

    Are the connectors OK?

    YES 

    Go to step 14.

    NO 

    Go to step 13.

  13. System check

    -1. Reset the loose connector connections whichever was the cause of the problem in step 12.

    -2. Clear the DTCs with the HDS .

    -3. Press the engine start/stop button to select the ON mode, then wait for 10 seconds.

    -4. Check for DTCs with the HDS .

    DTC Description DTC
    B0097-87 No signal from the right side impact sensor (second)  

    Is DTC B0097-87 indicated?

    YES 

    Press the engine start/stop button to select the OFF mode, then go to step 14.

    NO 

    The system is OK at this time.

  14. Open wire check (RS2+, RS2- lines)

    -1. Disconnect the negative cable from the battery, then wait at least 3 minutes.

    -2. Disconnect the following connectors.

    Right side impact sensor (first) 4P connector (on the floor wire harness)
    Right side impact sensor (second) 2P connector (on the floor wire harness)

    -3. Connect terminals A and B with a jumper wire.

    Terminal A Right side impact sensor (first) 4P connector No. 1 (on the floor wire harness)
    Terminal B Right side impact sensor (first) 4P connector No. 4 (on the floor wire harness)
    GHH475373Courtesy of HONDA, U.S.A., INC.

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

    Test condition OFF mode
    Right side impact sensor (first) 4P connector (on the floor wire harness): disconnected
    Right side impact sensor (second) 2P connector (on the floor wire harness): disconnected
    Right side impact sensor (first) 4P connector terminals No. 1 and No. 4 (on the floor wire harness): jumped
    Test circuit RS2+, RS2-
    Test point 1 Right side impact sensor (second) 2P connector No. 1 (on the floor wire harness)
    Test point 2 Right side impact sensor (second) 2P connector No. 2 (on the floor wire harness)
    GHH475374Courtesy of HONDA, U.S.A., INC.

    Is there 1.0 Ω or less?

    YES 

    The RS2+ and RS2- wires are OK. Replace the right side impact sensor (second) , then clear the DTC.

    NO 

    Open in the floor wire harness between the right side impact sensor (first) and the right side impact sensor (second); replace the floor wire harness, then clear the DTC.