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Entertainment System Diagnostic System Check

  1. Turn ignition switch to OFF position. Connect scan tool to Data Link Connector (DLC), located below steering column. Turn ignition switch to RUN position. If scan tool powers up, go to next step. If scan tool does not power up, go to TEST A: SCAN TOOL DOES NOT POWER UP  under SYSTEM TESTS.
  2. Attempt to establish communication with radio. If scan tool communicates with the radio, go to next step. If scan tool does not communicate with the radio, go to TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE  .
  3. Select DISPLAY DTCs function for the radio. If scan tool displays any DTCs, go to next step. If scan tool does not display any DTCs, repair entertainment system as necessary.
  4. If scan tool displays DTCs which begin with "U", go to TEST B: SCAN TOOL DOES NOT COMMUNICATE WITH CLASS 2 DEVICE  . If scan tool does not display any DTCs, repair entertainment system as necessary.
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