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Circuit/System Verification

WARNING: This page is about a different car, the 2018 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify DTC B390A 08 or DTC B390A 45 is not set.
    • If either DTC is set 
    1. Verify the DTC did not set immediately after replacement or programming of the B233 Radar Sensor Module - Short Range.
      • If the DTC set immediately after replacement or programming, ensure both the programming and set-up steps have been completed in SPS.
      • Go to next step: If the DTC did not set immediately after replacement or programming
    2. Program the appropriate B233 Radar Sensor Module - Short Range. Make sure to perform both the programming and set-ups steps in SPS.
    3. Verify DTC B390A 08 or DTC B390A 45 is not set after programming and set-up.
      • If either DTC sets after programming, replace the appropriate B233 Radar Sensor Module - Short Range.
      • Go to next step: If the DTC does not set
    4. All OK.
    • Go to next step: If both DTCs are not set 
  3. Verify DTC B390A 54 is not set.
    • If the DTC is set 

      Replace the appropriate B233 Radar Sensor Module - Short Range.

    • Go to next step: If the DTC is not set 
  4. Verify DTC B390A 58 is not set.
    • If DTC is set 
    1. Verify the area in front of the appropriate B233 Radar Sensor Module - Short Range is clean, unobstructed, and damage-free.
      • If not clean, unobstructed, and damage-free, clean or repair as necessary.
      • Go to next step: If clean, unobstructed, and damage-free
    2. Clear DTCs.
    3. Driver the vehicle for 3 - 5 minutes at speeds greater than 9 km/h (6 mph) in normal traffic conditions.
    4. Verify the DTC does not reset.
      • If the DTC resets, replace the appropriate B233 Radar Sensor Module - Short Range.
      • Go to next step: If the DTC does not reset.
    5. All OK.
    • Go to next step: If DTC is not set 
  5. Verify DTC B390A 67 is not set.
    • If the DTC is set in more than one B233 Radar Sensor Module - Short Range 
    1. Verify none of the B233 Radar Sensor Module - Short Range have not been swapped side to side.
      • If any B233 Radar Sensor Module - Short Range have been swapped, return them to their original position.
      • Go to next step: If none of the B233 Radar Sensor Module - Short Range have been swapped
    2. Replace the appropriate B233 Radar Sensor Module - Short Range.
    • If the DTC is set in only one B233 Radar Sensor Module - Short Range 

      Refer to Circuit/System Testing

    • Go to next step: If the DTC is not set 
  6. All OK.
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