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Circuit/System Testing

Key Card Malfunction

  1. Ignition ON/Vehicle in SERVICE MODE.
  2. Verify that DTC B1D3B or DTC B1EEF is not set.
    • Go to next step: If none of the DTCs are set 
  3. Unplug the harness connector at the K300 Near Field Communication Exterior Module and test for greater than 11.5 V at the B+ circuit terminal 2.
    • If less than 11.5 V 
    1. Remove fuse F22DA at the X51A Instrument Panel Wiring Harness Junction Block and test for infinite resistance between the B+ circuit and ground.
      • If less than infinite resistance, repair the short to ground on the circuit.
    • Go to next step: If 11.5 V or greater 
  4. Test for less then 2 Ω between ground circuit terminal 3 and ground
    • If greater than 2 Ω 
    1. Repair the open/high resistance in the circuit.
    • Go to next step: If less than 2 Ω 
  5. Verify the CAN circuit by testing between terminal 1 at K300 Near Field Communication Exterior Module and terminal 1 at K183 UHF Short Range Low Energy Remote Control Access Transceiver for less than 2 Ω.
    • If greater than 2 Ω 

      Repair the open/high resistance in the circuit.

    • Go to next step: If less than 2 Ω 
  6. Test for greater than 11.5 V at the B+ circuit terminal 20 of the K183 UHF Short Range Low Energy Remote Control Access Transceiver.
    • If less than 11.5 V 
    1. Test for less than 2 Ω between terminal 20 at the K183 UHF Short Range Low Energy Remote Control Access Transceiver and terminal 40 of the X51A Instrument Panel Wiring Harness Junction Block
    • If resistance is greater than 2 Ω, repair the open/high resistance in the circuit.
    • Go to next step: If 11.5 V or greater 
  7. Test for less then 2 Ω between ground circuit terminal 3 and ground
    • If greater than 2 Ω 
    1. Repair the open/high resistance in the circuit.
    • Go to next step: If less than 2 Ω 
  8. Attempt to learn a new Key Card to the vehicle.
    • If a new Key Card is unable to be learned to the vehicle

      Replace the K300 Near Field Communication Exterior Module.

    • If a new Key Card is able to be learned to the vehicle but vehicle access is still prohibited

      Replace the K183 UHF Short Range Low Energy Remote Control Access Transceiver.

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