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HOMESERVICE MANUALSACURA2012TL BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMFUEL SUPPLY SYSTEMFUEL PRESSURE RELIEVINGWITH THE HDS
2012 Acura TL Base

With the HDS

2012 Acura TL BaseSECTION With the HDS
  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 (With HDS)
    G08069719Courtesy 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 ECM/PCM. If it doesn't, go to the DLC circuit troubleshooting (see DLC CIRCUIT TROUBLESHOOTING ).
  4. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  5. Remove the fuel fill cap to relieve the pressure in the fuel tank.
  6. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
  7. From the INSPECTION MENU of the HDS, select Fuel Pump OFF, then start the engine, and let it idle until it stalls.
    NOTE:
    • Do not allow the engine to idle above 1, 000 RPM or the ECM/PCM will continue to operate the fuel pump.
    • Pending or Confirmed DTC may be set during this procedure. Check for DTCs, and clear them as needed (see HDS CLEAR COMMAND ).
  8. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
  9. Do the battery terminal disconnection procedure (see BATTERY TERMINAL DISCONNECTION AND RECONNECTION ).
  10. Remove the cover (A) and the quick-connect fitting cover (B); without SH-AWD system , with SH-AWD system .
    Fig 2: Cover And Quick-Connect Fitting Cover With Torque Specifications (With HDS)
    G08069720Courtesy of AMERICAN HONDA MOTOR CO., INC.
  11. Check the quick-connect fitting for dirt, and clean it if needed.
  12. Place a rag or a shop towel over the quick-connect fitting (A).
    Fig 3: Identifying Quick-Connect Fitting With Rag Or Shop Towel
    G08069721Courtesy of AMERICAN HONDA MOTOR CO., INC.
  13. Disconnect the quick-connect fitting (A): Hold the connector (B) with one hand, and squeeze the retainer tabs (C) with the other hand to release them from the locking tabs (D). Pull the connector off.
    NOTE:
    • Be careful not to damage the line (E) or other parts.
    • Do not use tools.
    • If the connector does not move, keep the retainer tabs pressed down, and alternately pull and push the connector until it comes off easily.
    • Do not remove the retainer from the line; once removed, the retainer must be replaced with a new one.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.