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FI
FUEL INJECTION SYSTEM
EAS00901
Checking for a defective engine trouble warning light bulb
The engine trouble warning light comes on for 1.4 seconds after the main switch has been turned to
“ON” and when the start switch is being pushed. If the warning light does not come on under these
conditions, the warning light bulb may be defective.
EAS00902
ALTERNATE INSTRUCTIONS OPERATION CONTROL (FAIL-SAFE ACTION)
If the ECU (engine) detects an abnormal signal from a sensor while the vehicle is being driven, the
ECU (engine) illuminates the engine trouble warning light and provides the engine with alternate
operating instructions that are appropriate for the type of malfunction.
When an abnormal signal is received from a sensor, the ECU (engine) processes the specified val-
ues that are programmed for each sensor in order to provide the engine with alternate operating
instructions that enable the engine to continue to operate or stop operating, depending on the condi-
tions.
The ECU (engine) takes fail-safe actions in two ways: one in which the sensor output is set to a pre-
scribed value, and the other in which the ECU (engine) directly operates an actuator. Details on the
fail-safe actions are given in the table below.
EAS00903
FAIL-SAFE ACTION TABLE
Fault
code No.
Item Symptom Fail-safe action
Engine start-
ability
Vehicle drive-
ability
12
Crankshaft position
sensor
No normal signals are
received from the crankshaft
position sensor.
--
Unable Unable
13
14
Intake air pressure
sensor (open or short
circuit) (pipe system)
Intake air pressure sensor-
open or short circuit detected.
Faulty intake air pressure sen-
sor system.
Fixes the intake air pressure
to 101.12 kPa
(1.01 kgf/cm
2
, 14.4 psi).
Able Able
15
16
Throttle position sensor
(open or short circuit)
(stuck)
Throttle position sensor-open
or short circuit detected.
Fixes the throttle position
sensor to fully open. Able Able
19
Sidestand switch (open
circuit in wire to ECU
(engine))
Open circuit is detected in the
input line from the sidestand
switch to the ECU (engine).
-- (No start)
Unable Unable
21
Coolant temperature
sensor
Coolant temperature sensor-
open or short circuit detected.
Fixes the coolant tempera-
ture to 80 °C (176 °F).
Able Able
22
Intake temperature
sensor
Intake temperature sensor-
open or short circuit detected.
Fixes the intake tempera-
ture to 20 °C (68 °F).
Able Able
24
O
2
sensor (inactive) No normal signals are
received from the O
2
sensor.
--
Able Able
33
Faulty ignition Open circuit detected in the
primary lead of the ignition
coil.
--
Unable Unable
Main switch
OFF
Main switch
ON
Engine trouble
warning light
Light
off
Light on for 1.4
seconds
Light
off
Initialize
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