Self-Diagnosis Function; User Mode - Suzuki DL650 Service Manual

4-1 4 FI SYSTEM DIAGNOSIS
SELF-DIAGNOSIS FUNCTION
The self-diagnosis function is incorporated in the ECM. The function has two modes, "USER MODE" and
-
"DEALER MODE". The user can only be notified by the LCD (DISPLAY) panel and LED (FI light). To check
the function of the individual FI system devices, the dealer mode is prepared. In this check, the special tool
is necessary to read the code of the malfunction items.
USER MODE
MALFUNCTION
I I
- -
Engine can not
I
"FI" letters
I
FI light turns ON
LCD (DISPLAY)
INDICATION
"NO"
1
Clock
"YES"
Enaine can start
start
1
*2
1
and blinks.
FI LIGHT
INDICATION
-
INDICATION MODE
I
Clock and "FI" letters
*1
Each 2 sec. Clock or "FI" FI light turns ON.
"FI" is indicated
continuously.
When one of the signals is not received by ECM, the fail-safe circuit works and injection is not stopped. In
this case, "FI" and clock are indicated in the LCD panel and motorcycle can run.
*2
The injection signal is stopped, when the crankshaft position sensor signal, tip over sensor signal, #1/#2
ignition signals, #1/#2 injector signals, fuel pump relay signal or ignition switch signal is not sent to ECM. In
this case, "FI" is indicated in the LCD panel. Motorcycle does not run.
-
"CHEC: The LCD panel indicates "CHEC when no communication signal from the ECM is received for 3
seconds.
For Example, The ignition switch is turned ON, and the engine stop switch is turned OFF. In this case, the
speed-meter does not receive any signal from ECM, and the panel indicates "CHEC".
If CHEC is indicated, the LCD does not indicate the trouble code. It is necessary to check the
wiring harness between ECM and speedometer couplers.
The possible cause of this indication is as follows;
Engine stop switch is in OFF position. Side-standfignition inter-lock system is not working Ignition fuse is
burnt.
NOTE:
Until starting the engine, the FI light turns ON.
The FI light is also turned ON when engine temperature is high or oil pressure is low.