Nanni N4.40 User Manual

ENGINE
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG, WSM
1-S41
(7) Electronic Governor
Speed Sensor
1. Disconnect the connector of the speed sensor (1) (3P).
2. Examine the condition of the harness.
3. If the harness is defective, replace it with a new one.
Then replace the ECU with a new one.
4. Turn the key switch to the ACC position.
5. Measure the voltage between the terminals of the connector (2)
(harness side).
6. If the measurements are not in the factory specifications, the
ECU is defective.
7. If the measurements are in the factory specifications, the ECU
is correct.
In this case, the speed sensor is defective. Then replace it with
a new one.
M00000003ENS0053US1
Water Temperature Sensor
1. Disconnect the connector of the water temperature sensor (1)
(2P).
2. Examine the condition of the harness.
3. If the harness is defective, replace it with a new one.
4. Turn the key switch to the ACC position.
5. Measure the voltage between the terminals of the connector (2)
(harness side).
6. If the measurement is not in the factory specification, the ECU
is defective. Then replace the ECU with a new one.
7. If the measurement is in the factory specification, the ECU is
correct.
In this case, the water temperature sensor is defective. Then
replace it with a new one.
M00000003ENS0054US1
Voltage
Factory
spec.
Terminal 1 -
Terminal 3
12 V
Terminal 1 -
Terminal 2
5 V
(1) Speed Sensor
(2) Connector (Harness Side)
(3) Terminal 3 (+)
(4) Terminal 2 (Signal)
(5) Terminal 1 (GND)
Voltage
Factory
spec.
Terminal 1 -
Terminal 2
5 V
(1) Water Temperature Sensor
(2) Connector (Harness Side)
(3) Terminal 2 (−)
(4) Terminal 1 (+)
KiSC issued 06, 2009 A

Nanni N4.40 Specifications

General

Brand	Nanni
Model	N4.40
Category	Engine
Language	English