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Home >> Honda >> 2021 >> Clarity Plug-In Hybrid >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (SRS) - Diagnostics (B0029 - U3000) (Plug-In) >> DTC Troubleshooting >> DTC B0070-11

DTC B0070-11

DTC B0070-11  : Short to Ground in the Driver's Seat Belt Tensioner

DTC Description DTC
B0070-11 Short to ground in the driver's seat belt 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
    B0070-11 Short to ground in the driver's seat belt tensioner  

    Is DTC B0070-11 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. Shorted wire check (LRP+, LRP- lines) 1

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

    -2. Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.

    -3. Remove the left side B-pillar lower trim .

    -4. Disconnect the following connector.

    Driver's seat belt tensioner 2P connector (on the floor wire harness)

    -5. Reconnect the negative cable from the 12 volt battery.

    -6. Turn the vehicle to the ON mode, then clear the DTC.

    -7. Check for DTCs with the HDS.

    Is DTC B0070-11 indicated?

    YES 

    Go to step 3.

    NO 

    Short to ground in the driver's seat belt tensioner; replace the driver's seat belt , then clear the DTC.

  3. Shorted wire check (LRP+, LRP- lines) 2

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

    -2. Disconnect the negative cable from the 12 volt battery, then wait at least 3 minutes.

    -3. Disconnect the following connector.

    SRS unit connector B (39P)

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

    Test condition Vehicle OFF (LOCK) mode
    SRS unit connector B (39P): disconnected
    Driver's seat belt tensioner 2P connector (on the floor wire harness): disconnected
    Test point 1 SRS unit connector B (39P) No. 20
    Test point 2 Body ground
    Test point 1 SRS unit connector B (39P) No. 21
    Test point 2 Body ground

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

    YES 

    The LRP+ and LRP- wires are OK. check for any authorized service information related to the DTCs or symptoms you are troubleshooting or replace the SRS unit .

    NO 

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