Yamaha YZF-R6 99, Service Manual

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8-54
SELF-DIAGNOSIS
ELEC
Revolution
(
10
3
r / min)
Tachometer display
Time (seconds)
Engine speed
0 r / min ... 3 seconds
Condition code ... 2.5 seconds
Engine speed ... 3 seconds
1
2
3
EB812000
SELF-DIAGNOSIS
The YZF-R6 features a self-diagnosing system for the following circuit(-s):
throttle position sensor
fuel level indicator light
If any of these circuits are defective, their respective condition codes will be displayed on the tachome-
ter when the main switch is set to “ON” (irrespective of whether the engine is running or not)
Circuit Defect(-s) System response Condition code
Throttle posi-
tion sensor Disconnected
Short-circuit
Locked
The ignitor unit stays set to the
wide-open throttle ignition timing.
The motorcycle can be ridden.
The tachometer displays the
condition code.
3,000 r / min
Fuel level indi-
cator light Improper connec-
tion The tachometer displays the
condition code. 8,000 r / min
Tachometer display sequence
When more than one item is being monitored, the tachometer needle displays the condition codes in
ascending order, cycling through the sequence repeatedly.
If the engine is stopped, the engine speed
3 is 0 r / min.