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DTC B2A10-14

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DTC B2A10-14  : Brake Light Drive Relay Circuit Malfunction

NOTE: Before you troubleshoot, review the general troubleshooting information .

DTC Description DTC Freeze Frame
B2A10-14 Brake Light Drive Relay Circuit Malfunction    

DTC (IDAS)

  1. VSA system DTCs check

    -1. Turn the vehicle to the ON mode.

    -2. Check for VSA system DTCs with the HDS.

    DTC Description DTC Freeze Frame
         

    Are any DTCs indicated?

    YES 

    Go to the indicated DTC's troubleshooting .

    NO 

    Go to step 2.

  2. Problem verification

    -1. Clear the DTC with the HDS.

    -2. Turn the vehicle to the OFF (LOCK) mode, then the ON mode.

    -3. Select Integrated Driver Support System from the DRIVING SUPPORT menu, then enter Brake Light from the FUNCTION TEST menu.

    -4. Do the brake light relay function test with the HDS.

    Brake Light Relay

    Check for DTCs with the HDS.

    DTC Description DTC Freeze Frame
    B2A10-14 Brake Light Drive Relay Circuit Malfunction    

    Is DTC B2A10-14 indicated?

    YES 

    The failure is duplicated. Go to step 3.

    NO 

    Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting . If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.

  3. Multipurpose camera unit check (update)

    -1. Update the multipurpose camera unit if it does not have the latest software .

    -2. Turn the vehicle to the OFF (LOCK) mode, then the ON mode.

    -3. Select Integrated Driver Support System from the DRIVING SUPPORT menu, then enter ACC RELAY from the FUNCTION TEST menu.

    -4. Do the brake light relay function test with the HDS.

    Brake Light Relay

    Check for DTCs with the HDS.

    DTC Description DTC Freeze Frame
    B2A10-14 Brake Light Drive Relay Circuit Malfunction    

    Is DTC B2A10-14 indicated?

    YES 

    Check for loose terminals in the multipurpose camera unit 20P connector. If the multipurpose camera unit was updated and the symptom/indication is still present, replace the multipurpose camera unit .

    NO 

    Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTC's troubleshooting.