LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Honda >> 2012 >> Fit Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Intake Air System >> Throttle Body Test >> Throttle Body Cleaning
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Throttle Body Cleaning

CAUTION: Do not insert your fingers into the installed throttle body when you turn the ignition switch to ON (II) or while the ignition switch is in ON (II). If you do, you will seriously injure your fingers if the throttle valve is activated.
  1. Make sure the ignition switch is turned to LOCK (0).
  2. Check for damage to the air cleaner. If the air cleaner is damaged, replace it (see AIR CLEANER REMOVAL/INSTALLATION  ).
  3. Remove the throttle body (see THROTTLE BODY REMOVAL/INSTALLATION  ).
  4. Clean off the carbon from the throttle valve and inside the throttle body with a paper towel soaked in throttle plate cleaner.
    NOTE:
    • Always remove the throttle body to clean it.
    • Be careful not to pinch your fingers.
    • To avoid removing the molybdenum coating, do not clean the bearing area of the throttle shaft (A).
    • Do not spray throttle plate cleaner directly on the throttle body.
    • Use Honda genuine throttle plate cleaner.
      Fig 1: Identifying Throttle Shaft
      G05953196Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. Reinstall the throttle body (see THROTTLE BODY REMOVAL/INSTALLATION  ).
  6. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
    Fig 2: Identifying Data Link Connector (DLC)
    G05953197Courtesy of AMERICAN HONDA MOTOR CO., INC.
  7. Turn the ignition switch to ON (II).
  8. Reset the ECM/PCM with the HDS.
  9. Select the ETCS TEST in the INSPECTION MENU with the HDS.
  10. Select the TP POSITION CHECK, then clear the throttle position (TP) learned value.
  11. Turn the ignition switch to LOCK (0).
  12. Turn the ignition switch to ON (II), and wait 2 seconds without pressing the accelerator pedal.
  13. Do ECM/PCM IDLE LEARN PROCEDURE .