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Home >> Jeep >> 2009 >> Commander Overland, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Emissions Control System >> Description >> Diagnostic Trouble Codes >> Obtaining DTC'S
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Obtaining DTC'S

  1. Obtain the applicable Powertrain Diagnostic Information.
  2. Obtain the appropriate scan tool.
  3. Connect the appropriate scan tool to the data link (diagnostic) connector. This connector is located in the passenger compartment; at the lower edge of instrument panel; near the steering column.
  4. Turn the ignition switch on and access the "Read Fault" screen.
  5. Record all the DTC's and "freeze frame" information shown on the appropriate scan tool.
  6. To erase DTC's, use the "Erase Trouble Code" data screen on the appropriate scan tool.Do not erase any DTC's until problems have been investigated and repairs have been performed. 
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