6 - 8
FI
FUEL INJECTION SYSTEM
SUBSTITUTE CHARACTERISTICS OPERATION CONTROL (FAIL-SAFE ACTION)
If the ECU detects an abnormal signal from a sensor while the motorcycle is being driven, the ECU
illuminates the engine trouble warning light and provides the engine with substitute characteristic
operation instructions that are appropriate for the type of the malfunction.
When an abnormal signal is received from a sensor, the ECU processes the specified values that
are programmed for every sensor, in order to provide the engine with substitute characteristics
operation instructions that enable the engine to continue to operate (or to stop its operation,
depending on circumstances).
The ECU takes fail-safe actions in two ways: one in which the sensor output is set to a prescribed
value, and the other in which the ECU directly operates an actuator. Details on the fail-safe actions
are given in the table below.
Table of substitute characteristic operation control by self-diagnostic fault code
Code No.
Item
Fail-safe action
Able/unable to
start
Able/unable to
drive
11
Cylinder identification
sensor
• Continues to operate the engine based on the
results of the cylinder identification that existed up
to that point.
Able
Able
12
Crankshaft position sen-
sor
• Stops the engine (by stopping the injection and
ignition).
Unable
Unable
13
14
25
26
Intake air pressure sensor
(open or short circuit)
(pipe system)
• Fixes the intake air pressure to 760 mmHg.
Able
Able
15
16
Throttle position sensor
(open or short circuit)
(stuck)
• Fixes the throttle position sensor to fully open.
Able
Able
19
Sidestand switch
(open circuit in wire to
ECU)
-- (No start)
Unable
Unable
20
Atmospheric pressure
sensor or intake air pres-
sure sensor
• Fixes the atmospheric correction value to 0 mmHg.
Able
Able
22
Intake temperature sen-
sor
• Fixes the intake temperature to 15 °C (59 °F).
Able
Able
23
Atmospheric pressure
sensor
• Fixes the atmospheric pressure to 760 mmHg.
Able
Able
27
Oil temperature sensor
• Fixes the oil temperature to 80 °C (176 °F).
Able
Able
28
Engine temperature sen-
sor
• Fixes the engine temperature to 140 °C (284 °F).
Able
Able
29
Decompression thermo-
stat
• Electricity is not circulated to the decompression
solenoid and the thermostat is not operated.
Able
Able
37
Linear control valve
--
Able
Able
38
Decompression solenoid
--
Able
Able
30
41
Lean angle cut-off switch
(latch up detected)
(open or short circuit)
• Turns OFF the fuel injection system relay of the fuel
system.
Unable
Unable
42
Speed sensor, neutral
switch
• Fixes the gear to the top gear.
Able
Able
43
Fuel system voltage
(monitor voltage)
• Fixes the battery voltage to 12 V.
Able
Able
50
ECU internal malfunction
(memory check error)
--
Unable
Unable
Содержание XV1700PCR Road Star Warrior
Страница 1: ...LIT 11616 16 36 5PX 28197 11 XV1700PCR XV1700PCRC SUPPLEMENTARY SERVICE MANUAL ...
Страница 32: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...
Страница 33: ...XV1700P XV1700PC SERVICEMANUAL LIT 11616 15 37 5PX 28197 10 ...
Страница 119: ...2 31 SPEC ENGINE OIL FLOW DIAGRAMS 1 Valve lifter 2 Push rod 3 Rocker arm shaft 4 Crankshaft 3 2 1 4 3 ...
Страница 120: ...2 32 SPEC ENGINE OIL FLOW DIAGRAMS 1 Engine oil pump 2 Oil strainer 3 Engine oil drain bolt engine 3 2 1 1 ...
Страница 123: ...2 35 SPEC TRANSFER GEAR OIL FLOW DIAGRAMS 1 Transfer gear oil pump 2 Middle driven shaft 1 2 ...
Страница 277: ...4 68 CHAS FRONT FORK 3 Adjust spring preload Refer to ADJUSTING THE FRONT FORK LEGS in chapter 3 ...
Страница 338: ...5 38 ENG CYLINDER HEADS 6 Install washer engine temperature sensor 1 T R 20 Nm 2 0 m kg 14 ft lb ...
Страница 425: ...5 125 ENG TRANSMISSION 2 Check transmission Rough movement Repair NOTE _ Oil each gear shaft and bearing thoroughly ...
Страница 546: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...
Страница 547: ...LIT 11616 19 46 5PX 28197 12 XV17PCV C XV17PCMV C SUPPLEMENTARY SERVICE MANUAL ...
Страница 605: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN PRINTED IN U S A ...