P0685 Code Need Help!!! - Honda-Tech - Honda Forum Discussion

Engine Management and Tuning Crome, NepTune, Hondata, AEM, MOTEC

P0685 Code Need Help!!!

Thread Tools Search this Thread
Old 07-20-2009, 04:51 PM   #1
Junior Member
Thread Starter
ATLTSX's Avatar
Join Date: Feb 2007
Location: Atlanta, Ga, USA
Posts: 116
Default P0685 Code Need Help!!!

I have a 2004 Acura TSX. I just recently went turbo. I'm running Hondata Kpro (Consides of Reflashed TSX ECU and RSX Type S ECU). Everything was running fine. A couple days ago when I was going into boost i got a CEL. The code that came up was P0685. This is ECM/PCM Power Relay Control Circuit/Open. Kpro is not showing any CEL so it has to be in the TSX ECU. I took the TSX ECU out to make sure that the Board wasn't burnt. Plugged everything back in and i got 1 run where it ran fine. Came up to the next light and it did it again.

Any thoughts? I'm trying to get this fixed to make it to IA.

ATLTSX is offline   Reply With Quote
Old 10-03-2016, 05:04 AM   #2
Honda-Tech Member
Join Date: Aug 2015
Posts: 20
Default Re: P0685 Code Need Help!!!

Very old, but did you ever figure this one out?
bansell is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
my turbo TSX project civicb20krt Acura TSX 243 08-21-2017 01:06 PM
TSX-K24 in 3rd Gen CR-V orca Honda Element & CR-V 0 05-14-2017 10:54 AM
TSX 6MT Pick-up/Speed sensor interference within transmission Kris05TSX Transmission & Drivetrain 5 04-23-2017 03:09 PM
Kswap need some help/info Evo9GSR K Series 8 01-22-2017 10:49 PM
WTB: tsx 6th gear Gerbil Juice Northeast (Sales) 0 01-03-2017 03:51 PM

2004, accord, acura, circuit, code, control, ecmpcm, engine, honda, light, op0685, open, p0685, power, relay

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -8. The time now is 01:03 AM.

  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: