Ignition System, Ecu 950 Super Enduro - KTM 2003 950 Adventure Repair Manual
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Also See for 2003 950 Adventure:
- Owner's manual (55 pages) ,
- Owner's manual (15 pages) ,
- Manual (161 pages)
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Ignition system, ECU 950 Super Enduro
NOTE: this is a digital battery ignition system with the current supplied by the battery.
Battery voltage from the battery flows through the switched on ignition switch
The pulse generator
reports the crankshaft position to the ECU. The ECU uses this signal to calculate the ignition point for
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each cylinder.
The ignition switch supplies the coil of the engine stop relay
i.e. the load contact closes when the emergency off switch is actuated. The engine stop relay is connected in parallel to the
pulse generator, which it short circuits when the emergency off switch is actuated, immediately causing the engine to stall.
Battery voltage is supplied to both ignition coils
The coil on the fuel pump relay
switches on for a few seconds and switches off again. If you start with the engine running, the fuel pump relay will stay on.
The fuel pump
obtains battery voltage from the battery through the fuse (continuous positive polarity) and the contact on the
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fuel pump relay.
The throttle potentiometer (TPS)
connector AM or AR). The TPS is supplied with 5 volts of supply voltage (blue cable on connector AM or AR) by the ECU. The
black cable (on connector AM or AR) supplies the ground.
NOTE: see Chapter 8 for the adjustment of the TPS.
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via the ignition switch, the ground is switched by the ECU.
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obtains battery voltage from the ECU. After the ignition is switched on, the fuel pump relay
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reports the position of the carburetor throttle valves to the ECU via the yellow cable (on
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to the ECU (control unit)
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with current, the ground is supplied by the emergency off switch,
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