Electronic Ignition System (Te-Smr) - Husqvarna TC 450 Workshop Manual

ELECTRIC SYSTEM, DIGITAL INSTRUMENT

ELECTRONIC IGNITION SYSTEM (TE-SMR)

The ignition system is controlled by the ECU (1). The system belongs to the category of the integrated systems of digital electronic igni-
tion with advance and static distribution and gasoline electronic injection of intermittent sequential balanced type. This ignition system
consists of a sensor of the crankshaft position (Pick-up), an ECU, an ignition coil and an air pressure sensor of the intake manifold.
The feeding of the ignition coil is supplied by the battery with a power relay and is controlled by the ECU. The synchronization of the
ignition is checked with precision with regard to the engine r.p.m. and the position of the throttle control. Besides this basic condition,
also the temperature and air pressure sensors and the coolant temperature influence the synchronization of the ignition.
- Electronic power unit (1) (ECU);
- W.T.S. (33) (Water Temperature Sensor);
- Ignition coil (23);
- Fuel pump (35);
- Clutch switch (27);
- Ignition switch (26);
- O2 sensor heater (31);
- Battery (16);
- Electric start remote control switch (17);
- Starting motor (18);
- Voltage regulator-rectifier (3);
- Alternator (2);
- Gear shift position sensor (22);
- M.A.Q.S. (40) (pressure sensor +TPS sensor + air temperature sensor);
- Power relay (38);
- Fuse (37);
- R.H. switch (25);
- Injector (6);
- Fall sensor (36) (SMR).
M.18 Part. N. 8000 H1344 (10-2009)