Pilot 4WD V6-3.5L (2008)
transmission in 2 position.
4. Repeat step 2 and 3 several times.
5. Turn the ignition switch OFF.
6. Turn the ignition switch ON (II), and wait 30 seconds.
How to End a Troubleshooting Session (required after any troubleshooting)
1. Reset the PCM with the HDS.
2. Do the PCM idle learn procedure.
3. Turn the ignition switch OFF.
4. Disconnect the HDS from the DLC.
NOTE: The PCM is part of the immobilizer system. If you replace the PCM, it will have a different immobilizer code. In order for the engine to
start, you must rewrite the immobilizer code with the HDS.
Updating the PCM
Updating the PCM
Special Tools Required
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Honda diagnostic system (HDS) tablet tester
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Honda interface module (HIM) and an in workstation with HDS and CM update software
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HDS pocket tester
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GNA-600 and an iN workstation with HDS and CM update software
NOTE:
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Use this procedure when you need to update the PCM during troubleshooting\procedures.
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Make sure the HDS/HIM has the latest software version downloaded from the iN (interactive network).
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Before you update the PCM, make sure the battery in the vehicle is fully changed, and connect a jumper battery (not a battery charger) to maintain
system voltage.
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Never turn the ignition switch OFF during the update. If there is a problem with the update, leave the ignition switch ON.
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To prevent PCM damage, do not operate anything electrical (headlights, audio system, brakes, A/C, power windows, moonroof (if equipped), door
locks, etc.) during the update.
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To ensure the latest program is installed, do an PCM update whenever the PCM is substituted or replaced.
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You cannot update an PCM with a program it already has. It will only accept a new program.
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High temperature in the engine compartment might cause the PCM to become too hot to run the update. If the engine has been running before this
procedure, open the hood and cool the engine compartment.
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If you need to diagnose the Honda interface module (HIM) because the HIM's red (#3) light came on or was flashed during the update, leave the
ignition switch in the ON (II) position when you disconnect the HIM from the data link connector (DLC). This will prevent PCM damage.
1. Turn the ignition switch ON (II), but do not start the engine.
2. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
3. Make sure the HDS communicates with the PCM. If it doesn't, go to the DLC circuit troubleshooting. If you are returning from the DLC circuit
troubleshooting, skip steps 4 and 5, and clean the throttle body after updating the PCM. See: Testing and Inspection/Component Tests and
General Diagnostics/DLC Circuit Troubleshooting
4. Select the INSPECTION MENU with the HDS.
5. Select the ETCS TEST, then select the TP POSITION CHECK, and follow the HDS screen prompts.
NOTE: If the TP POSITION CHECK indicates FAILED, continue this procedure.
6. Exit the HDS, then select the update mode, and follow the screen prompts to update the PCM.
7. If the software in the PCM is the latest, disconnect the HDS/HIM from the DLC, and go back to the procedure that you were doing. If the software
in the PCM is not the latest, follow the instructions on the screen. If prompted to choose the PGM-FI system or the A/T system, make sure you