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Home >> Buick >> 2017 >> Envision Base >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Object Detection System And Pedestrian Protection System >> Diagnostic Information and Procedures >> DTC B0958, B0959, B0960, or B0961: Parking Assist Rear Sensor Circuits >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON.
  2. Verify that DTC B1405 is not set.
    • If the DTC is not set 
  3. Verify that DTC B0958 3A, DTC B0958 3B, B0959 3A, B0959 3B, B0960 3A, B0960 3B, B0961 3A or B0961 3B is not set.
    • If the DTC is set 

      Replace the B78 Front Object Sensor.

    • If the DTC is not set 
  4. Verify that DTC B0958, B0959, B0960, or B0961 is not set.
    • If the DTC is set 
    1. Check the B78 Rear Object Sensor for contamination with snow, mud, dirt, slush, or ice.
      • If contaminated, clean sensor.
      • If there is no contamination
    2. Refer to Circuit/System Testing.
    • If the DTC is not set 
  5. Ignition ON, transmission in R.
  6. Verify the scan tool Parking Assist System Status parameter displays Enabled.
    • If the Parking Assist System displays Disabled 

      Refer to Circuit/System Testing.

    • If the Parking Assist System displays Enabled 
  7. All OK.
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