FUEL SYSTEM (DFI) 3-33

Self-Diagnosis

Self-diagnosis Outline

Self-diagnosis Outline

The self-diagnosis system has three modes and can be switched to another mode by grounding the self-diagnosis terminal.

User Mode:

The ECU notifies the rider of troubles in DFI system and ignition system by lighting the FI indicator when DFI system and ignition system parts are faulty, and initiates fail-safe function. In case of serious troubles, the ECU stops the injection/ignition/starter motor operation.

Dealer Mode 1:

The FI indicator LED light emits service code(s) to show the problem(s) which the DFI system and ignition system has at the moment of diagnosis.

Dealer Mode 2:

The FI indicator light LED emits service code(s) to show the problem(s) which the DFI system and ignition system had in the past.

Self-diagnosis Procedures

Self-diagnosis Procedures

○When a problem occurs with the DFI system and ignition system, the DFI indicator LED light [A] goes on.

NOTE

○Use a fully charged battery when conducting self-diagnosis. Otherwise, the LED light blinks very slowly or doesn’t blink.

○Keep the self-diagnosis terminal grounded during self -diagnosis, with an auxiliary lead.

•Remove the seats (see Frame chapter).

•Ground [A] the self-diagnosis terminal [B] (yellow lead) to the battery (–) terminal [C] or battery (–) lead connector, using a wire.

•Turn on the ignition switch.

•Connect an auxiliary lead [E] to the self-diagnosis terminal

•[G] for grounding.

To enter the self-diagnosis dealer mode 1, ground [A] the self-diagnosis indicator terminal to the battery (–) terminal for more than 2 seconds [C], and then keep it grounded continuously [D].

○Count the blinks of the LED light to read the service code. Keep the auxiliary lead ground until you finish reading the service code.