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Home >> Chevrolet >> 2014 >> Impala LS >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Diagnostic Information and Procedures >> DTC C056E: Electronic Control Unit Software (Distance Sensing Cruise Control Module) >> Circuit/System Verification
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Circuit/System Verification

NOTE:

If DTC C056 with failure type byte 4B is the only DTC set, all that should be needed is to perform the distance sensing cruise control module learn procedure.

  1. Ignition ON.
  2. Verify DTC C056E 4B is not set.
    • If DTC C056E 4B is set 
    1. Perform the distance sensing cruise control module learn procedure. Refer to Distance Sensing Cruise Control Module Learn Procedure .
    2. Verify the DTC C056E 4B does not set.
      • If the DTC C056E 4B sets, replace the K14 Distance Sensing Cruise Control Module.
      • If the DTC C056E 4B does not set
    3. All OK.
    • If DTC C056E 4B is not set 
  3. All OK
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