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Carbon Accumulation Check

WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If the malfunction indicator lamp (MIL) has been reported on, check for diagnostic trouble codes (DTCs)
  1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard
    Fig 1: Identifying Data Link Connector (DLC)
    G05990464Courtesy of AMERICAN HONDA MOTOR CO., INC.
  2. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode
  3. Make sure the HDS communicates with the PCM If it does not, go to the DLC circuit troubleshooting (see DLC CIRCUIT TROUBLESHOOTING )
  4. Start the engine Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in neutral) until the radiator fan comes on, then let it idle
  5. Check the REL TP SENSOR in the DATA LIST with the HDS The reading should be below 2 46 percent If it is not, clean the throttle body (see THROTTLE BODY CLEANING )
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