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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 208 (Parking Assistance Systems) >> Diagnostic Information and Procedures >> DTC B132B-B132E >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify DTC B1A30 is not set.
    • Go to next step: If DTC B1A30 is not set 
  3. Verify DTC B132B 12, B132C 12, B132D 12, or B132E 12 is not set.
    • If DTC B132B 12, B132C 12, B132D 12, or B132E 12 is set 
    1. Verify the appropriate B306 Parking Assist Alarm Sensors are not contaminated with snow, mud, dirt, slush, or ice.
      • If contaminated, clean the B306 Parking Assist Alarm Sensors.
      • Go to next step: If there is no contamination
    2. Refer to Circuit/System Testing.
    • Go to next step: If DTC B132B 12, B132C 12, B132D 12, or B132E 12 is not set 
  4. Verify DTC B132B 4A, B132C 4A, B132D 4A or B132E 4A is not set.
    • If DTC B132B 4A, B132C 4A, B132D 4A or B132E 4A is set 

      Replace the appropriate B306 Parking Assist Alarm Sensor with the correct sensor type.

    • Go to next step: If DTC B132B 4A, B132C 4A, B132D 4A or B132E 4A is not set 
  5. Refer to Circuit/System Testing.
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