Programming and Relearning

Service Information

Motor Control Module (MCM) Update













Any one of the updating tools can be used.

Procedure

The MCM has the programs for the IMA motor control. Update the MCM if its program is not the latest.

NOTE:
* Make sure the updating tools has the latest HDS software version.
* To ensure the latest programs are installed, do an MCM update whenever the MCM is substituted or replaced.
* If you are using the HIM, select IMA motor and/or IMA battery in the HIM MCM update menu.
* You can not update an MCM with the program it already has. It will only accept a new program.
* Before you update the MCM, make sure the vehicle's 12 volt battery is fully charged.
* Do not turn the ignition switch to ACC (I) or LOCK (0) while updating the MCM. If you do, the MCM can be damaged.
* To prevent MCM damage, do not operate anything electrical (audio system, brakes, A/C, power windows, door locks, etc.) during the update.
* If you need to diagnose the Honda interface module (HIM) because the HIM's red (#3) light came on or was flashing during the update, leave the ignition switch in ON (II) when you disconnect the HIM from the data link connector (DLC). This will prevent MCM damage.

1. HDS DLC - Connection





1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.

2. Turn the ignition switch to ON (II).

3. Make sure the HDS communicates with vehicle. If it does not communicate, go to the DLC circuit troubleshooting.

2. MCM Update

1. If the software is the MCM is not the latest, do the MCM update procedure as described on the HIM label and in the MCM update system.