CFMOTO
12-40
12.16 EFI Self-diagnosis
The ECU constantly monitor sensors, actuators and circuits, MIL and battery voltage,
etc, the ECU itself, and inspects the sensor output signal, actuator drive signal and
internal signal (such as close loop control, coolant temperature, idle speed control
and battery voltage control, etc.) for reliability. If any process or signal is suspect, ECU
records the fault code in the RAM memory.
Faulty information is recorded in the form of fault code, and in the sequence of which
trouble comes rst.
When servicing, using PDA and MIL, the defective parts can be promptly found to
improve the service eciency and quality.
EFI system is mainly diagnosed by MIL
and PDA.
The MIL stays on when a fault has
occurred. A code will display on the LCD
screen.
The right picture is the MIL connection
circuit. The current in pin 82 to ECU should
be less than 0.1 A.
12.16.1 Malfunction Indicating Lamp
(MIL)
1 +12V power 2 Resistance 3 Diode
123301
ECU
1
2
3
Voltage(V)
5V
0.75±0.1
0.375±0.1
0°
Pedal position-signal output relationship
4.1±0.2
2.05±0.2
18°
Pedal position(°)
Analog signal output
1
Analog signal output
2
© CFMOTO Powersports, Inc. This manual is subject to all applicable copyright laws.
Reproduction or duplication in any form, whole or in part, is strictly prohbited.
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