Self-Diagnostic Function Table - Yamaha XVS1300A 2007 Service Manual

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a. Main switch "OFF"
b. Main switch "ON"
c. Engine trouble warning light off
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
Fault
code No.
Crankshaft position
12
sensor
Front cylinder intake
13 air pressure sensor
(open or short circuit)
Front cylinder intake
14 air pressure sensor
(hose system)
Throttle position sen-
15 sor
(open or short circuit)
Blue/black ECU lead
19 (broken or discon-
nected)
Coolant temperature
21
sensor
Air temperature sen-
22 sor
(open or short circuit)
O sensor
24
2
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a b
c
Item
No normal signals are received
from the crankshaft position sen-
sor.
Front cylinder intake air pressure
sensor: open or short circuit de-
tected.
Front cylinder intake air pressure
sensor: hose system malfunction
(clogged or detached hose).
Throttle position sensor: open or
short circuit detected.
A break or disconnection of the
blue/black lead of the ECU is de-
tected.
Coolant temperature sensor: open
or short circuit detected.
Air temperature sensor: open or
short circuit detected.
No normal signal is received from
the O
2
FUEL INJECTION SYSTEM
c
d
d. Engine trouble warning light on for 1.4
seconds
Symptom
sensor.
8-36
Able / un-
Able / un-
able to
able to start
drive
Unable Unable
Able Able
Able Able
Able Able
Unable Unable
Able Able
Able Able
Able Able