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Home >> Cadillac >> 2019 >> CTS Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Diagnostic Information and Procedures >> DTC C1002 >> Circuit/System Testing

Circuit/System Testing

NOTE:

Verify that the B233B Radar Sensor Module-Long Range in the grille is mounted securely and aligned properly before using the following diagnostic procedure.

  1. Verify that no other DTCs are set, except DTC C1002.
    • Go to next step: If only DTC C1002 is set 
  2. Perform the Radar Sensor Module - Long Range Learn procedure.
  3. Road test the vehicle and verify the adaptive cruise control system functions normally and DTC C1002 does not set. Refer to Active Safety System Description and Operation , and Adaptive Cruise Control Description and Operation .
    • If DTC C1002 sets 
    1. Verify that the B233B Radar Sensor Module-Long Range is mounted securely and aligned properly. Refer to Adaptive Cruise Control Module Replacement for more information.
      • If alignment cannot be achieved within the limits of the currently installed location of the B233B Radar Sensor Module-Long Range, inspect the mounting structures and brackets for damage or tampering and repair as necessary to achieve proper module mounting and alignment.
      • Go to next step: If alignment is OK
    2. Reprogram the K17 Electronic Brake Control Module.
    3. Road test the vehicle and verify the adaptive cruise control system functions normally and DTC C1002 does not set.
      • If DTC C1002 sets 

        Replace the K17 Electronic Brake Control Module.

      • Go to next step: If DTC C1002 does not set. 
    4. All OK.
    • Go to next step: If DTC C1002 does not set 
  4. All OK.
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