[Kissmann18]

Hello!

I'm hoping that someone can help me on this issue.
I was out riding when all the sudden my 2007 Rancher TRX400FA would not shift and started giving me a problem code of 12. After following the instructions from the Hondamatic in the service manual, I replaced the ECM. After replacing the ECM, I started it up to perform the initial setting procedure and it popped another 30 amp. I put in a new one and went through the Initial Setting procedure. After completing the initial setting procedure, I took it for a test drive, it would not shift and gave me a Problem Code of 5. When I disconnected the Angle Sensor, I checked the voltage on the connector and got 0.


Does anyone know what the voltage should read on the connector? Also, do you think that I blew the ECM after I installed it and then blew a 30 amp? I'm hoping that I do not need to purchase another ECM after just installing a brand new one.

I would appreciate any help!

 

[_Wilson_]

Welcome to the forums! Great help from these fellows , I'm sure someone will be along to advise

 

[SlammedRanger]

Welcome to the forums! I agree lots of great people here always willing to help. I on the other hand have zero idea about anything utility quad. Dont worry though someone will be along shortly that does.

 

[alloutdoors]

Hello!

I'm hoping that someone can help me on this issue.
I was out riding when all the sudden my rancher 400 would not shift and started giving me a problem code of 12. After following the instructions from the Hondamatic in the service manual, I replaced the ECM. After replacing the ECM, I started it up to perform the initial setting procedure and it popped another 30 amp. I put in a new one and went through the Initial Setting procedure. After completing the initial setting procedure, I took it for a test drive, it would not shift and gave me a Problem Code of 5. When I disconnected the Angle Sensor, I checked the voltage on the connector and got 0.


Does anyone know what the voltage should read on the connector? Also, do you think that I blew the ECM after I installed it and then blew a 30 amp? I'm hoping that I do not need to purchase another ECM after just installing a brand new one.

I would appreciate any help!

The first thing I would do is fully and slowly charge the battery and then verify the battery is perfect, i.e., voltage, load, etc., Here is a link which may be helpful, specifically pages 21...., assuming this is something you are comfortable with or I would run the battery into a service dealer to have it checked, because these units like my electronic shift unit is sensitive to battery performance. See, http://www.yuasabatteries.com/pdfs/TechManual_2014.pdf

 

[Kissmann18]

Thank you for the help! After I replaced the Angle Sensor, it gave me 6 flashes and then 12 flashes. I ordered a new control motor and am waiting on it's arrival. I did check the battery and verified that there isn't anything wrong with it. I'm hoping that the control motor is the last part that I need to replace.

 

[fishfiles]

Quote " I'm hoping that the control motor is the last part that I need to replace." Quote


Kiss' , good luck with that !

 

[retro]

Hello!

I'm hoping that someone can help me on this issue.
I was out riding when all the sudden my 2007 Rancher TRX400FA would not shift and started giving me a problem code of 12. After following the instructions from the Hondamatic in the service manual, I replaced the ECM. After replacing the ECM, I started it up to perform the initial setting procedure and it popped another 30 amp. I put in a new one and went through the Initial Setting procedure. After completing the initial setting procedure, I took it for a test drive, it would not shift and gave me a Problem Code of 5. When I disconnected the Angle Sensor, I checked the voltage on the connector and got 0.


Does anyone know what the voltage should read on the connector? Also, do you think that I blew the ECM after I installed it and then blew a 30 amp? I'm hoping that I do not need to purchase another ECM after just installing a brand new one.

I would appreciate any help!

If I remember right a DCT code 12 indicates a fault in the control motor circuit...? Which means it could be either the electronic relay inside the ECU is stuck, or a possible control motor or wiring harness issue...

Symptoms changed after you replaced the ECU (no longer has a DCT 12) but I have no idea why it would blow a 30 amp main fuse... That requires a dead short I'm thinking. Has that fuse blown before you changed the ECU, or was this the only time it happened? Please explain...

I think the voltage on the harness side of the angle sensor plug should read ~5 volts with the key on and the motor not running. But I haven't looked that up... so don't quote me on that. I do know that if the motor is running while a connector is unplugged for testing, that the ECU can/will be damaged in many cases. Careful there...

I'd go back and start over... but if it is blowing the main fuse thats gotta be troubleshooted first and fixed before doing anything else.

Welcome to the forums!