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Circuit/System Testing

  1. Ignition OFF, test for less than 1.0 ohm between the data link connector (DLC) ground circuit terminal 5 and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  2. Ignition OFF, disconnect the X1 harness connector at the infotainment display.
  3. Ignition OFF, test for less than 2 ohms between the DLC serial data circuit terminals and the CIM serial data circuit terminals listed below:
    • DLC terminal 3 and CIM terminal 22
    • DLC terminal 11 and CIM terminal 23
    • If greater than the specified range, test the serial data circuit for open/high resistance.
  4. Ignition OFF, test for infinite resistance between the following serial data circuits of the DLC and ground.
    • Terminal 3
    • Terminal 11
    • If less than the specified value, test the serial data circuits for a short to ground.
  5. Ignition ON, test for less than 4.5 volts between the following serial data circuits of the DLC and ground.
    • Terminal 3
    • Terminal 11
    • If greater than the specified range, test the serial data circuit for a short to voltage.
  6. Ignition OFF, test for infinite resistance between the DLC serial data circuit terminal 3 and terminal 11.
    • If less than the specified value, test for a short between the serial data circuits.
  7. Connect the X1 harness connector at the infotainment display.
  8. Ignition OFF, disconnect the X1 harness connector of the radio.
  9. Ignition ON, attempt to communicate with the display unit. Communication should not be available.
    • If communication is established, replace the radio.
  10. Ignition OFF, disconnect the X1 harness connector of the infotainment display.
  11. Ignition OFF, test for infinite resistance between the following serial data circuits and ground.
    • Terminal 19
    • Terminal 20
    • If less than the specified value, test the serial data circuit for a short to ground.
  12. Ignition ON, test for less than 1-volt between the following serial data circuits and ground.
    • Terminal 19
    • Terminal 20
    • If greater than the specified range, test the serial data circuit for a short to voltage.
  13. Ignition OFF, test for infinite resistance between the serial data circuit terminal 19 and terminal 20.
    • If less than the specified value, test for a short between the serial data circuits.
  14. If the circuits test normal, replace the infotainment display.
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