ECU / Immobiliser Self-Test - Avanti Race Parts - Ducati Parts and Accessories for Road and Race Motorcycles. Services for Ducati Motorcycles. Race prep, Paintwork, ECU Repairs, Anodising and more!

NEW! ACU Approved toe guards for swingarms. These are required to pass ACU scrutineering when racing and protect hands and feet from being mangled through the rear wheel sprocket! Easily fitted to most swingarms with variable mounting points from 30-65mm between centres.

Available in plain aluminium or painted black

ECU / Immobiliser Self-Test

We often get asked a lot of questions about the ECU and immobiliser built into Ducati motorcycles, and they do seem to reset themselves from time to time, especially if the battery drains for any length of time. Symptoms are typically that you can no longer start the bike using your normal key(s).

Luckily, the 5.9M ECU has some self-diagnostic checks built in which you can perform with the Red key supplied with your motorcycle. Note that later Ducati motorcycles such as the 1098, Streetfighter, Hypermotard, etc, did not come with a Red Key so this method cannot be used.

Checking for correct immobiliser programming:

You can check the immobiliser for correct programming as follows:

1. insert the Red key into the key operated ignition switch

2. turn the switch to the "On" position.

The LED will now perform a series of flashing sequences with a short pause in-between:

First sequence
The LED flashes once. Duration indicates whether the immobiliser is blank or has been programmed. A 2-second pulse indicates a blank immobiliser (this occurs when one step of the programming procedure has not been performed within the specified time limit). The procedure will have to repeated.

Second sequence
The LED flashes quickly (0.7 seconds pulses) and repeatedly to indicate how many keys have been stored. When programming is correct, the LED will flash three times.

Third sequence
This sequence indicates a system fault:

if the system is OK, the LED stays off;
the LED flashes once to indicate that the serial connection is missing (this is the direct connection - through the main wiring - between engine control unit and immobiliser control unit in the instrument panel);
the LED flashes twice to indicate that the key in the switch, or the immobiliser antenna, or both, are faulty;
the LED flashes three times to indicate that the system does not recognize the key you have inserted;
the LED flashes four times to indicate that the engine control unit has been programmed, but the immobiliser is blank.

In either case, the engine will not start.

Fourth sequence

the LED stays off if engine ignition is enabled;

the LED comes on and stays on if engine ignition is inhibited.

If you need any further help, please feel free to Contact Us for more guidance.

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