5-18 FI SYSTEM DIAGNOSIS
FAIL-SAFE FUNCTION
FI system is provided with fail-safe function to allow the engine to start and the vehicle to run in a minimum
performance necessary even under malfunction condition.
The engine can start and can run even if the above signal is not received from each sensor. But, the engine
running condition is not complete, providing only emergency help (by fail-safe circuit). In this case, it is nec-
essary to bring the vehicle to the workshop for complete repair.
ITEM
FAIL-SAFE MODE
STARTING
ABILITY
RUNNING
ABILITY
IAP sensor
Intake air pressure is fixed to 760
mmHg.
“YES”
“YES”
TP sensor
The throttle opening is fixed to full
open position.
Ignition timing is also fixed.
“YES”
“YES”
ECT sensor
Engine coolant temperature value is
fixed to 80 °C (176 °F).
“YES”
“YES”
IAT sensor
Intake air temperature value is fixed
to 40 °C (104 °F).
“YES”
“YES”
Diff-lock relay
Differential position signal is fixed to
neutral gear.
“YES”
“YES”
Summary of Contents for LT-A450X
Page 2: ...SUPPLEMENTS LT A450XK9 09 MODEL LT A450XK8 12 13 WIRING DIAGRAM 14 ...
Page 47: ...PERIODIC MAINTENANCE 2 29 ...
Page 48: ...2 30 PERIODIC MAINTENANCE ...
Page 63: ...ENGINE 3 7 Remove the engine mounting nuts Remove the engine from the right side ...
Page 215: ......
Page 315: ...7 24 COOLING AND LUBRICATION SYSTEM ENGINE LUBRICATION SYSTEM To cylinder head OIL PUMP ...
Page 316: ...COOLING AND LUBRICATION SYSTEM 7 25 EXHAUST SIDE INTAKE SIDE ...
Page 317: ......
Page 332: ...8 14 CHASSIS REAR CARRIER Remove the rear carrier REAR BOX Remove the rear box 1 ...
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Page 452: ...9 34 ELECTRICAL SYSTEM HEADLIGHT INSTALLATION Head light coupler Head light R Adjusting point ...
Page 484: ...10 26 SERVICING INFORMATION Rear box Rear fender Right mud guard Left mud guard ...
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