EPS Control Unit Update
Special Tools Required
Image Description/Tool Number
310289.png Honda Diagnostic System (HDS) TDSGDS2200
6245218.png MVCI unit with the latest control module (CM) update software installed
1. HDS DLC - Connect
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), or press the engine start/stop button to select the ON mode.
3.
Make sure the HDS communicates with the vehicle. If it does not communicate, go to the DLC circuit troubleshooting.

2. EPS Control Unit - Update

NOTE:
Use this procedure when you need to update the EPS control unit at any time.
Make sure the HDS/MVCI workstation has the latest software version.
Before you update the EPS control unit, make sure the battery in the vehicle is fully charged, and connect a jumper to the battery (not a battery charger) to maintain system voltage.
Never turn the ignition switch to LOCK (0) or ACCESSORY (I), or press the engine start/stop button to select the OFF or ACCESSORY mode, during the update. If there is a problem with the update, leave the ignition switch ON (II), or the ON mode.
To prevent EPS control unit damage, do not operate anything electrical (headlights, audio system, brakes, A/C, power windows, door locks, etc.) during the update.
To ensure the latest program is installed, do a EPS control unit update whenever the EPS control unit is substituted or replaced.
You cannot update a EPS control unit with a program it already has. It will only accept a new program.
DTCs stored in memory are cleared when the EPS control unit is updated.
If you need to diagnose the MVCI because any error message is indicated on the MVCI display during the update, keep the ignition switch in ON (II), or in the ON mode when you disconnect the MVCI from the data link connector (DLC). This will prevent EPS control unit damage.
1.
Select the update mode, and follow the screen prompts to update the EPS control unit.
2.
If the software in the EPS control unit is the latest, disconnect the HDS/MVCI from the DLC. If the software in the EPS control unit is not the latest, follow the instructions on the screen.
NOTE: If the EPS control unit update system requires you to cool the EPS control unit, follow the instructions on screen. If you run into a problem during the update procedure (programming takes over 15 minutes, status bar goes over 100 %, immobilizer indicator flashes, HDS tablet freezes, etc.), follow these steps to minimize the chance of damaging the EPS control unit:
Keep the ignition switch in ON (II), or in the ON mode.
Connect a jumper battery (do not connect a battery charger).
Shut down the updating tool.
Disconnect the updating tool from the DLC.
Reboot the updating tool.
Reconnect the updating tool to the DLC, and try the update procedure again.