Pilot 2006-2008

Powertrain Control Module

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Operation



Specific to:

Honda Pilot 2006-2008

The Power Train Control Module (PCM) controls the vehicle engine operating system.

Removal & Installation



Specific to:

Honda Pilot 2006-2008


NOTE
Be sure that you have the anti-theft codes for the audio system and navigation system, if equipped. Record the audio presets.

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Turn the ignition switch OFF.
  4.  
  5. Disconnect and isolate the negative battery cable. Wait 3 minutes for the system capacitor to discharge before performing any service.
    NOTE
    Refer to the HDS tool instructions for the particular model you are repairing. Use those procedures to position the PCM for replacement. Diagnostics for engine oil replacement, ATF fluid replacement, and throttle body cleaning will be addressed on both US and Canadian vehicles.



    Click image to see an enlarged view

    Fig. PCM and related components

  6.  
  7. Remove the cover.
  8.  
  9. Disconnect the electrical connectors.
    NOTE
    These connectors have symbols embossed in them for identification, see illustration.

  10.  
  11. Remove the component retaining bolts.
  12.  
  13. Remove the component from its mounting.
  14.  
  15. Remove the cover and the bracket from the PCM.
  16.  

To install:

  1. Installation is the reverse of the removal procedure.
  2.  
  3. Tighten the retaining bolt to 7 ft. lbs. (9 Nm).
    NOTE
    Refer to the HDS tool instructions for the particular model you are repairing. Use those procedures to check the PCM after replacement. Diagnostics for engine oil replacement, ATF fluid replacement, and throttle body cleaning will be addressed on both US and Canadian vehicles.


    NOTE
    Update the PCM if it does not have the latest software.


    NOTE
    The PCM relearn procedure must be performed whenever you replace the PCM, reset the PCM, update the PCM, remove the engine or replace/clean the throttle body. Erasing DTC-s with the HDS tool does not require you to perform the relearn procedure.

  4.  
  5. Reset the PCM with the Honda Diagnostic System (HDS) tool while the engine is stopped. Turn the ignition switch to LOCK (O). Turn the ignition switch to ON (II), and wait thirty seconds. Turn the ignition switch to LOCK (O) and disconnect the tool from the DLC.
  6.  
  7. Make sure that all electrical items are turned off.
  8.  
  9. Reset the PCM with the HDS tool.
  10.  
  11. Turn the ignition switch ON (II) and wait two seconds.
  12.  
  13. Start the engine. Hold the engine speed at 3000 rpm-s, without a load in either PARK or NEUTRAL until the radiator fan comes on or until the coolant temperature reaches 194° F.
  14.  
  15. Let the engine idle for about five minutes with the throttle fully closed
    NOTE
    If the radiator fan comes on, do not include its running time in the five minutes.

  16.  
  17. Perform the CKP pattern clear/relearn procedure as follows.
    NOTE
    The Honda Diagnostic Service (HDS) tool should be used to perform this operation. Follow the directions using the HDS tool. If the tool is not available, precede as indicated below.

  18.  
  19. Start the engine. Hold the engine speed at 3000 rpm-s, without a load in either PARK or NEUTRAL until the radiator fan comes on.
  20.  
  21. Test drive the vehicle on a level road. Decelerate with the throttle fully closed from an engine speed of 2500 rpm-s down to 1000 rpm-s with the transmission in the 2 position.
  22.  
  23. Test drive the vehicle on a level road. Decelerate with the throttle fully closed from an engine speed of 5000 rpm-s down to 3000 rpm-s with the transmission in the 2 position.
  24.  
  25. Repeat the above steps several times.
  26.  
  27. Turn the ignition switch OFF.
  28.  
  29. Turn the ignition switch to LOCK (O). Turn the ignition switch to ON (II) and wait thirty seconds.
  30.  

 
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