Replacing the IMOES Unit

(2008 TL and 2007-08 TSX only)

To replace the IMOES unit, you must use the HDS to instruct the new IMOES unit and the immobilizer control unit-receiver to recognize each other's unique serial code or the engine cannot start.

IMOES Unit Location:

See the applicable service manual, or go online.

Preparation

To replace the IMOES unit, you need these items:

^ Replacement IMOES unit

^ One programmed ignition key for the vehicle

^ HDS with the latest software

NOTE:
Make sure the market, the date, and the time on the HDS setup screen are correct. Select the F12 key in the upper right corner to get the Set-up Details screen. Make sure Market: is set to USA. Select the time display in the lower right corner to get the Date/Time Properties pop-up window. Make sure the date and time are correct. For details, refer to the Honda Diagnostic System (HDS) Setup Instructions listed under Tool Information in ISIS.

^ PCM code

NOTE:
If you cannot log in to the iN screen on the HDS, you must retrieve the PCM code from the Immobilizer Code Inquiry in the iN.

Procedure

1. Replace the IMOES unit. Refer to the Body Electrical section of the appropriate service manual, or go online.

2. Connect the HDS to the DLC (data link connector).

3. Insert a programmed ignition key into the ignition switch, and turn the ignition switch to ON (II). Turn on the HDS, then log in to the iN screen.

4. At the screen prompts, enter the VIN and the odometer reading, then verify the correct date and time.

5. From the System Selection Menu screen, select IMMOBI.

6. From the Mode Menu screen, select Immobilizer Setup.

7. From the Immobilizer Test Mode Menu screen, select Replace IMOES Unit.

8. Follow the on-screen prompts, if your HDS is not logged in to the iN, you will have to enter the PCM Code you have retrieved from the iN Immobilizer Code Inquiry to proceed. When the process is complete, turn the ignition switch to LOCK (0), then turn off and disconnect the HDS.

9. Do the idle learn procedure:

^ Make sure all electrical items (A/C, audio unit, defogger, lights, etc.) are off, then start the engine.

^ Let the engine reach its normal operating temperature (the cooling fans cycle twice).

^ Let the engine idle (throttle fully closed and all electrical items off) for 10 minutes.

10. Turn the ignition switch to LOCK (0), and then turn off and disconnect the HDS.