P0685ECM/PCM Power Relay Control Circuit/Open Please Help!!!

H.P.C · Post by **H.P.C** » Mon Apr 26, 2010 6:04 am

Hi there I have a Euro CTR FN2 whenever it wants cut off the engine and is very dangerous. The car has Injen CAI, Sprint Booster, and Hondata Flashpro and is written with MAF (AFM) Calibration. Brings me the error code
P0685 ECM/PCM Power Relay Control Circuit/Open

Hodata please Help me

Post by **Spunkster** » Mon Apr 26, 2010 11:44 am

Have you tried a different calibration?

H.P.C · Post by **H.P.C** » Mon Apr 26, 2010 1:30 pm

The first ECU reflash was MAP calibration but since I had problems with the fuel gauge swift light and cruice control and saw that you don't provide a solution to this problem and I would like to tell me when will fix this problem, I decided to write with AFM and both calibration do the same the car is dangerous (example on the road with 160km/h suddenly switch off the engine) you are the last person the last hope to fix this, the car do that 7 months what do you advice me

nunoctr · Post by **nunoctr** » Mon Apr 26, 2010 2:00 pm

what is a "sprint booster"?

did you try the car without that?

edit: google that. Take that from your car. That throtle controler is the causse of your problem. Not the flashpro.

H.P.C · Post by **H.P.C** » Tue Apr 27, 2010 5:12 am

Are you sure for that ? there is not compatibility between sprint booster and flashpro?

Post by **Hondata** » Tue Apr 27, 2010 8:27 am

It is the compatibility between the sprint booster and the Honda ECU that is the issue - the FlashPro does not change this.

H.P.C · Post by **H.P.C** » Wed Apr 28, 2010 3:52 am

what do you advice me to remove spirnt booster? flashpro has throtle control module ?

Post by **Spunkster** » Wed Apr 28, 2010 1:02 pm

yes, remove the Sprint Booster. You can make changes to the throttle control within the FlashPro Manager software.

H.P.C · Post by **H.P.C** » Wed Apr 28, 2010 1:32 pm

Ok Thanks a lot