Circuit/System Testing

Verify that no other DTCs are set except for DTC C127F.
- If any other DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If only DTC C127F is set
Replace the K17 Electronic Brake Control Module.
Verify the DTC does not set while operating the vehicle within the Conditions for Running the DTC.
- If DTC sets
  Replace the K38 Chassis Control Module.
- Go to next step: If DTC does not set
All OK.