Yamaha YZFR6V, Service Manual

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FUEL INJECTION SYSTEM
8-36
EAS27380
SELF-DIAGNOSTIC FUNCTION TABLE
If the ECU detects an abnormal signal from a sensor while the vehicle is being driven, the ECU illumi-
nates 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 processes the specified values 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 conditions.
Self-Diagnostic Function table
a b
c
c
d
a. Main switch “OFF”
b. Main switch “ON”
c. Engine trouble warning light off d. Engine trouble warning light on for 1.4
seconds
Fault
code No.
Item Symptom
Able/un-
able to start
Able/un-
able to
drive
11
Cylinder identification
sensor
No normal signals are received
from the cylinder identification
sensor when the engine is started
or while the vehicle is being driv-
en.
Unable Able
12
Crankshaft position
sensor
No normal signals are received
from the crankshaft position sen-
sor.
Unable Unable
13
Intake air pressure
sensor
(open or short circuit)
Intake air pressure sensor:
open or short circuit detected.
Able Able
14
Intake air pressure
sensor hose line
(piping system) Intake air pressure sensor:
hose system malfunction (clogged
or detached hose).
Able Able
15
Throttle position sen-
sor (for throttle valves)
(open or short cir-
cuit/loose connection)
Throttle position sensor (for throt-
tle valves):
open or short circuit detected.
Throttle position sensor (for throt-
tle valves) coupler connection is
loose.
Able/Un-
able Able/Un-
able
17
EXUP servo motor
circuit
(open or short circuit)
EXUP servo motor circuit:
open or short circuit detected.
Able Able