Yamaha YXR70FX, Руководство по обслуживанию

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6 - 10
FI
FUEL INJECTION SYSTEM
Sensor operation table
50
Faulty ECU memory. (When this mal-
function is detected in the ECU, the
fault code number might not appear
on the LCD of the meter.)
• Malfunction in ECU. (The program and data are not
properly written on or read from the internal memory.)
—
Diagnos-
tic code
No.
Item Meter display Checking method
d01
Throttle angle
• Fully closed position 15 ~ 20 Check with throttle fully closed.
• Fully opened position 95 ~ 100 Check with throttle fully open.
d03
Pressure difference
(atmospheric pressure
and intake air pressure) Displays the intake air pressure. Operate the throttle while pushing the
start switch. (If the display value
changes, the performance is OK.)
d05
Intake air temperature Displays the intake air temperature. Compare the actually measured
intake air temperature with the meter.
d06
Coolant temperature Displays the coolant temperature. Compare the actually measured cool-
ant temperature with the meter.
d07
Vehicle speed pulse 0 ~ 999 Check that the number increases
when the rear wheel is rotated. The
number is cumulative and does not
reset each time the wheel is stopped.
d08
Lean angle sensor Remove the lean angle sensor and
incline it more than 65 degrees.
• Upright 3.7 ~ 4.4
• Overturned 0.4 ~ 1.4
d09
Fuel system voltage
(battery voltage)
Approximately 12.0
Compare with the actually measured
battery voltage. (If the battery voltage
is lower, perform recharging.)
d21
Gear position switch Shift the transmission.
• Neutral ON
• In gear OFF
d60
EEPROM fault code dis-
play —
• No history 00
• History exists 01
d61
Malfunction history code
display —
• No history 00
• History exists Fault codes 12-50
• (If more than one code number is detected, the
display alternates every two seconds to show all
the detected code numbers. When all code num-
bers are shown, the display repeats the same pro-
cess.)
d62
Malfunction history code
erasure
• No history 0 —
• History exists Up to 16 fault codes To erase the history, set the differen-
tial gear lock switch to “4WD” and
then to “LOCK”.
d70 Control number 00 ~ 255 —
Fault
code No.
Symptom Probable cause of malfunction Diagnostic code No.