7-7
1
2
2
A
B
3
4
ECU
Check the cables and socket connectors on the ECU
1
.
A functional check of the ECU can only be performed on an ignition test
stand.
– Check the ignition coil control: remove the ignition coil connector and
apply the measuring tips of the peak voltage adapter to the pins of
the connector AS (see
4
on the lower photo).
– Actuate the tip switch and let the starter engine run for a few seconds
Multimeter reading: 12 volts
!
CAUTION
!
N
EVER TEST THE
ECU
WITH A CONVENTIONAL MEASURING DEVICE
.
THIS MAY
DESTROY HIGHLY SENSITIVE ELECTRONIC COMPONENTS
.
Checking the pulse generator
– Disconnect the connectors AL and AT and apply the measuring tips of
the peak voltage adapter to the connector AT
2
(yellow/blue and
yellow/white cable colors).
– Actuate the tip switch and run the starter engine for a few seconds.
Digital multimeter reading: 4.0 volts +/- 0.5 volts
NOTE: make sure the battery is fully charged.
– If the measured value deviates from the set point value, measure the
resistance of the pulse generator:
190 - 300 ... at 20°C
NOTE: if the resistance figure is correct but the signal voltage deviates,
check the distance between the pulse generator and the pulse generator
wheel (see page 6-9)
Checking the fuel pump relay
– Dismount the fuel pump relay
3
.
NOTE: black/blue, blue/gray, yellow/black and brown cable colors
– Connect the fuel pump relay to a 12 V battery as shown, making sure
you hear the relay switch (nonrecurring "click").
NOTE: the 12 V battery must be connected to the two terminals to
which the blue/gray and brown cable colors are connected when the
plug is connected.
– Use an ohmmeter to measure the continuity between the terminals
A
and
B
.
Reading: max. 1
Ω
OK
Reading:
∞ Ω
defective
Checking the ignition coils
– Disconnect and remove the ignition coil
2
.
– Use an ohmmeter to obtain the following measurements:
Resistance of the primary coil (measured between the terminals):
1.0 – 1.6
Ω
…. at 20°C
Resistance of the secondary coil (measured between one terminal and
the spark plug connector: 9.4 – 17.6
Ω
… at 20°C
NOTE:
– Repeat the measurement for the other ignition coil.
– Replace the respective ignition coil if the measurement deviates
significantly from the set point value.
Содержание 950 ADVENTURE 2003
Страница 1: ...950 ADVENTURE 2003 to 2006...
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Страница 140: ...13 7 Repair manual KTM LC8 Art Nr 3 206 009 E ignition switch r y r o r w r w r w LOCKED OFF ON...