5-14 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
*1
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
odometer are indicated in the LCD panel and vehicle can run.
*2
The injection signal is stopped, when the crankshaft position
sensor signal, tip-over sensor signal, ignition signal, injector sig-
nal, fuel pump relay signal or ignition switch signal is not sent to
ECM. In this case, “FI” is indicated in the LCD panel. Vehicle
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-
ometer 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 wir-
ing harness between ECM and speedometer couplers.
The possible cause of this indication is as follows;
Engine stop switch is in OFF position. 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.
MALFUNCTION
LCD (DISPLAY)
INDICATION
A
FI LIGHT
INDICATION
B
INDICATION MODE
“NO”
Odometer (Tripmeter)
----
----
“YES”
Engine can start
Odometer (Tripmeter)
and “FI” letters
*1
FI light turns ON.
Each 2 sec. Odometer
and “FI” is indicated
alternately.
Engine can not start “FI” letter
*2
FI light turns ON and
blinks.
“FI” is indicated continu-
ously.
Summary of Contents for LT-A700X 2004
Page 25: ...2 8 PERIODIC MAINTENANCE INTAKE SIDE ...
Page 26: ...PERIODIC MAINTENANCE 2 9 EXHAUST SIDE ...
Page 46: ...PERIODIC MAINTENANCE 2 29 ...
Page 59: ...3 8 ENGINE Remove the engine from the right side ...
Page 133: ...3 82 ENGINE Pull the rope and check that the ratchet is pushed out ...
Page 155: ......
Page 263: ......
Page 301: ...7 20 COOLING AND LUBRICATION SYSTEM EXHAUST SIDE INTAKE SIDE ...
Page 302: ......
Page 312: ...CHASSIS 8 9 REAR CARRIER Remove the rear carrier 1 ...
Page 386: ......
Page 420: ...ELECTRICAL SYSTEM 9 33 HEADLIGHT INSTALLATION Head light coupler Head light R Adjusting point ...
Page 453: ...10 26 SERVICING INFORMATION Rear box Rear fender Right mud guard Left mud guard ...
Page 477: ......
Page 480: ...Prepared by September 2004 Part No 99500 46060 01E Printed in U S A 472 ...