Clearing Diagnostic Trouble Codes
How to Clear DTCsHDS (Honda Diagnostic System) Method
1. With the ignition switch OFF, connect the HDS to the 16P data-link connector (DLC) (A) located under the driver's side of the dashboard.
2. Turn the ignition switch ON (II).
3. For '06 model; make sure the HDS communicates with the vehicle and the EPS control unit. If it doesn't, troubleshoot the DLC circuit.
4. Clear the DTC(s) by following the screen prompts on the HDS.
NOTE: See the HDS Help menu for specific instructions.
Service Check Signal Circuit Method
NOTE: Use this procedure when the HDS software does not match the year/model vehicle you are working on.
1. With the ignition switch OFF, connect the HDS to the 16P data link connector (DLC) (A) located under the driver's side of the dashboard.
2. With the vehicle on the ground, set the front wheels in the straight ahead driving position.
3. Short the SCS circuit to body ground using the HDS.
4. Turn the steering wheel 45 degrees to the left from the straight ahead driving position, and hold the steering wheel in that position.
5. Turn the ignition switch ON (II). The EPS indicator comes on, then it goes off after 4 seconds.
6. Within 4 seconds after the EPS indicator goes off, return the steering wheel to the straight ahead driving position and release the steering wheel. The EPS indicator comes on again 4 seconds after releasing the steering wheel.
7. Within 4 seconds after the EPS indicator comes on, turn the steering wheel 45 degrees to the left again and hold it in that position.
The EPS indicator goes off after 4 seconds.
8. Within 4 seconds after the EPS indicator goes off, return the steering wheel to the straight ahead driving position again and release the steering wheel. The EPS indicator blinks twice 4 seconds after releasing the steering wheel, indicating that the DTC was erased.
NOTE: If the EPS indicator does not blink twice, an error was made in the procedure and the DTC was not erased. Turn the ignition switch OFF, and repeat the operation from the step 3.
9. Turn the ignition switch OFF within 5 seconds after the EPS indicator blinks twice.
NOTE: If the ignition switch is not turned OFF within 5 seconds after the EPS indicator blinks, the system will go to the memorizing mode of the torque sensor neutral position. To avoid this, turn the steering wheel 45 degrees to left from the straight ahead driving position and turn the ignition switch OFF. This will return the system to the alert mode.
10. Disconnect the HDS from the DLC.
11. Perform the DTC code output operation, and be sure that the code has been erased.