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Home >> Cadillac >> 2018 >> CT6 Plug-In >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Keyless Entry System And Remote Function >> Diagnostic Information and Procedures >> Keyless Entry System Malfunction (Active) >> Component Testing
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Component Testing

  1. Ignition OFF, disconnect the remote control door lock receiver coax cable from the K77 Remote Control Door Lock Receiver and from the T23 Radio Antenna Amplifier.
  2. Test for less than 5 Ω between the coax cable center terminals end to end.
    • If 5 Ω or greater 

      Replace the coax cable.

    • Go to next step: If less than 5 Ω 
  3. Test for less than 5 Ω between the coax cable outer shield end to end.
    • If 5 Ω or greater 

      Replace the coax cable.

    • Go to next step: If less than 5 Ω 
  4. Test for infinite resistance between the coax cable center terminal and the outer shield.
    • If less than infinite resistance 

      Replace the coax cable.

    • Go to next step: If infinite resistance 
  5. All OK.