What is Forza MF08 F code error?

What is Forza MF08 F code error?

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What is Forza MF08 F code error?

Changed to PGM-FI (electronic fuel injection)
　The second-generation Forza MF08 was explosively popular.

 

　Smart keys are now commonplace in cars and motorcycles, but did you know that the Forza MF08 was the first motorcycle to have them?

 

 

　The speedometer and tachometer demos when the engine starts were also very appealing, and it was a moment when I felt the joy of owning one.

 

 

　With the transition to the second generation, the fuel supply was changed from an analog carburetor to PGM-FI (electronic fuel injection), which was a major evolution.

 

　The Forza MF08 debuted with the sporty Forza Z equipped with the Honda S-Matic, which resulted in the development of two versions, the X and the Z.

　The Honda S-Matic is an electronically controlled system that allows you to switch between automatic and manual modes. In manual mode, you can freely shift up or down the gears with the switch on the right side of the handlebars.

 

　This time, we will be talking about the F code and error messages that have occurred on the Forza Z. If you own an MF08, please refer to this article.


Forza MF08 F code error flashing count

Number of times that the F code error flashes
　The number of times that the F code error flashes is listed in the service manual, but since it is expensive and may take some time to obtain depending on the time of year, I will list the standard code error.

 

　Measure the number of times that the "F" flashes in the image below.

 


Error contents by number of times

The problem areas when it flashes once are estimated as follows
● The connector of the ratio sensor may be loose.
● There may be a short circuit or break in the wiring of the ratio sensor.
● The ratio sensor itself may be defective.

 

The symptom that occurs is that the car may move, but the speed will not increase.
(The electronic control of the movable drive face may have stopped)

 

When it flashes twice, the following may be the cause of the problem
● There may be a break in the blue/yellow wire (engine RPM input wire) between the ratio control unit and the engine control unit.

 

The symptom reported is that the car may move, but it will not pick up speed.
(The electronic control of the movable drive face may have stopped)

 

When it flashes three times, the following may be the cause of the problem
● There may be an abnormality in the control motor drive circuit in the ratio control unit.
● The possibility that the control motor fuse (30A) has blown is considered.

 

The symptom reported is that the car may move, but it will not pick up speed.
(The electronic control of the movable drive face may have stopped)

 

When the light flashes four times, the problem is likely to be as follows
● The drive pulley sensor connector may be loose.
● The drive pulley sensor wiring may be shorted or broken.
● The drive pulley sensor may be defective.

 

The symptom is that the car may move, but it will not pick up speed.
(The electronic control of the movable drive face may have stopped.

 

5 flashes - Estimated fault location
● The fail-safe relay in the ratio control unit is showing an abnormality.
● The control motor fuse (30A) has blown.
The symptom is that the car may be able to move, but the speed will not increase.
(The electronic control of the movable drive face has stopped.)

 

6 flashes - Estimated fault location
● There is an abnormality in the boost circuit in the ratio control unit.
The symptom is that the car may be able to move, but the speed will not increase.
(The electronic control of the movable drive face has stopped.)

 

7 flashes - Estimated fault location
● There is excessive friction in the gear mechanism between the control motor and the movable drive gear.

 

The symptom is that the car may move, but the speed does not increase.
(Electronic control of the movable drive face has stopped)

 

 

 

Blinks 8 times - Estimated fault location

 

● There is an abnormality in the memory of the ratio control unit.

 

The symptom is that the car may move, but the speed does not increase.
(Electronic control of the movable drive face has stopped)

 

 

 

Blinks 9 times - Estimated fault location

 

● The 2P coupler of the mode change switch has come loose.

 

● The wiring of the mode change switch has a short circuit or break.

 

● There is a problem with the mode change switch.

 

Symptoms
Driving possible in automatic D mode

 

 

10 flashes - likely fault location
When the light flashes 10 times, it may be due to poor contact in the 3P coupler of the shift switch, broken insulation or broken wires in the wiring of the shift switch, or a fault in the shift switch itself.

12 flashes - likely fault location
When the light flashes 12 times, the wiring between the ratio control unit and the speed sensor may be broken, so please check that.

13 flashes - likely fault location
When the light flashes 13 times, it may be due to a short circuit or broken wire in the mode notification line between the ratio control unit and the engine control unit.

Faulty ratio control unit
If there is a problem with the ratio control unit itself, you can still drive in automatic D mode.