Troubleshooting In The Ignition System 950 Adventure/950 Supermoto - KTM 990 Adventure Repair Manual

Troubleshooting in the ignition system 950 Adventure/950 Supermoto

Before checking the ignition, make sure:
– the ignition lock is in the ON position
– the emergency OFF switch is in the ON position (does not apply to the 950 Super Enduro)
– the battery is charged
– the main fuse is OK
– the fuse for the electric starter system and ignition is OK
Check whether there is an ignition spark upon starting:
– Pull of the ignition coil and remove the spark plug.
– Hold the spark plug and the ignition coil against the ground (engine case).
– A strong spark should be visible when the starter is actuated. If not, try a new ignition coil or new spark plug.
If no spark is visible during the first test, perform the following tests:
– Is battery voltage being applied to the ECU (orange cable color at connector AO) and to the ignition coils (orange cable colors
to both connectors AS)?
– Check the ignition control. Are the coils being controlled?
– If not, check the ignition lock, emergency OFF switch and the corresponding parts on the cable tree and the fuse for the
ignition and electric starter system, for the 950 Super Enduro, also check the emergency off switch and the engine stop relay
(relay should not attract).
If the ignition is being supplied with voltage but no spark is visible, check:
– the ground from the ECU
– the cable from the ECU to the ignition coil
– the pulse generator
NOTE: the ECU cannot be tested with simple devices. It can only be tested on an ignition test stand.
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