PEDESTRIAN PROTECTION SYSTEM, Diagnostic DTC:B16A1

DTC Code DTC Name
B16A1 Pedestrian Protection Sensor Difference

DESCRIPTION

The pedestrian detection sensor RH circuit consists of the pedestrian detection ECU assembly and pedestrian protection sensor.

The pedestrian protection sensor LH and pedestrian protection sensor RH detect impacts to the vehicle and send signals to the pedestrian detection ECU assembly to determine if the pop up hood lifter assembly should be deployed.

When the pedestrian protection sensor LH or pedestrian protection sensor RH detects pressure out of the specified range, DTC B16A1 is stored in the pedestrian detection ECU assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode
B16A1 Pedestrian Protection Sensor Difference The pedestrian protection sensor LH or pedestrian protection sensor RH detects pressure out of the specified range.

  • Pedestrian detection chamber assembly (pedestrian protection sensor)

  • Pedestrian detection ECU assembly

 Comes on Not applicable

WIRING DIAGRAM

B004XMDE12

CAUTION / NOTICE / HINT

Note


  • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

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  • When disconnecting the cable from the negative (-) auxiliary battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected.

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PROCEDURE


  1. REPLACE PEDESTRIAN DETECTION CHAMBER ASSEMBLY (PEDESTRIAN PROTECTION SENSOR)


    1. Turn the power switch off.

    2. Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 90 seconds.

    3. Replace the pedestrian detection chamber assembly (pedestrian protection sensor) with a new one.

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      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK DTC


    1. Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.

    2. Turn the power switch on (IG), and wait for at least 60 seconds.

    3. Clear the DTCs stored in memory.

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      Body Electrical > Pedestrian Protection > Clear DTCs

    4. Turn the power switch off.

    5. Turn the power switch on (IG), and wait for at least 60 seconds.

    6. Check for DTCs.

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      Body Electrical > Pedestrian Protection > Trouble Codes
      Result
      Result Proceed to
      DTC B16A1 is not output A
      DTC B16A1 is output B

      Tech Tips

      Codes other than DTC B16A1 may be output at this time, but they are not related to this check.


    A

    END (PEDESTRIAN DETECTION CHAMBER ASSEMBLY [PEDESTRIAN PROTECTION SENSOR] WAS DEFECTIVE)

    B

    REPLACE PEDESTRIAN DETECTION ECU ASSEMBLY Click here