The K series ECU, in order to be re-programmed must have a functioning
immobilizer system. Three items must be sent to Hondata: the ECU, the
ignition key and the immobilizer. The immobilizer works as normal after
the ECU has been re-flashed.
- Philips screwdriver
- 10 mm socket and drive
- Time needed : 10-15 minutes
Removing the immobilizer (Civic SI, RSX /
Integra and TSX)
Under the steering column remove the three philips screw holding on
the bottom plastic cover.
Depress the bottom cover along its top edge where it meets the top
cover to separate the plastic clips. Rotating the steering wheel 45
degrees can help.
Lower the steering column and remove the bottom plastic cover from over
the height adjustment lever.
Unclip the green connector immobilizer connector and unscrew the
securing two philips screws.
RSX ECU removal
The ECU is located in the passenger's footwell. The kick panel is
removed after depressing the centers of three small plastic buttons around
the front covering panel.
Unplug the three wiring connectors and remove the two front most 10mm
locating bolts, plus the rear bolt. The ECU
will slide out easily - if it does not, then check that the rear bolt has been
loosened or removed.
K20A3 Civic Si ECU removal
The Civic Si's ECU is located in the passenger's footwell behind the
Unclip the lower plastic panel:
Unplug the three ECU connectors.
Remove the lower two 10 mm bolts.
Open the glove compartment and push out from behind the two bump stops.
The glove compartment will drop after this is done.
Undo the last 10 mm bolt and slide the ECU down.