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Throttle Body Carbon Accumulation Check: Test

  1. HDS - Connect
    GHH59447Courtesy of HONDA, U.S.A., INC.
    		 1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, but do not start the engine.
    2. Connect the HDS to the DLC (A) located under the driver's side of the dashboard.
    3. Make sure the HDS communicates with the PCM and other vehicle systems. If it doesn't, go to the DLC circuit troubleshooting - Refer to: DLC Circuit Troubleshooting (L4) (2013-15), or DLC Circuit Troubleshooting (L4) (2016-17), ; For (V6) Refer to DLC Circuit Troubleshooting (V6) (2013-15), or DLC Circuit Troubleshooting (V6) (2016-17) .
  2. Throttle Body - Test
      1. Start the engine. Hold the engine speed at 3, 000 rpm without load (A/T and CVT in P or N, M/T in neutral) until the radiator fan comes on, then let it idle.
    2. Check the REL TP SENSOR in the DATA LIST with the HDS. The reading should be below 2. 46 deg. If it is not, clean the throttle body - Refer to: Throttle Body Cleaning (V6),  or Throttle Body Cleaning (L4) .
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