coolant temp wiring - Honda-Tech - Honda Forum Discussion

Honda Insight & CR-Z Hybrid Honda Insight and CR-Z Hybrid discussion forum.

coolant temp wiring

Reply

 
 
 
Old 10-16-2017, 07:05 AM
  #1  
Honda-Tech Member
Thread Starter
 
crx_si-r's Avatar
 
Join Date: Sep 2006
Location: NoRthERn Cali
Posts: 7,683
Default coolant temp wiring

I am trying to set up a k20 conversion harness for an 01 I sight. I've done cluster swap for it and based on the diagram coolant temp signal is a4 @ cluster. light green wire. I assumed it was on the engine harness that provided signal through the chassis connection. but I guess I was wrong and forgot to grab that plug from a wrecked insight. I have the complete engine barness so I was able to trace it all out.

but I can't find the coolant temp signal from ecu to cluster. I have the rest pretty much figured out.
Attached Images   
crx_si-r is offline  
Reply With Quote
Old 10-16-2017, 11:31 AM
  #2  
Honda-Tech Member
 
Ryanthegreat1's Avatar
 
Join Date: Jul 2005
Posts: 298
Default Re: coolant temp wiring

On my swap an 04 TSX engine the engine coolant temp is on the CAN bus between cluster and ECU.

I am not certain but I think most of the K stuff the temp is on CAN bus.

So you could convert CAN bus to a voltage with something like Arduino or install another temp senor in the head for the cluster to read.

For the real advanced the 06+ S2000 cluster gets its coolant temp from a serial interface between ECU and cluster.
Ryanthegreat1 is offline  
Reply With Quote
Old 10-16-2017, 02:23 PM
  #3  
Honda-Tech Member
Thread Starter
 
crx_si-r's Avatar
 
Join Date: Sep 2006
Location: NoRthERn Cali
Posts: 7,683
Default Re: coolant temp wiring

my rdx is the same but the temp fees comes direct to cluster. if there was a comm wire to the mcu (multuplexer) then yes. but here it's direct connected to the cluster.
I tried joining insightcentral.com but can't for some reason. I will recheck the shop manual tonight, hopefully I missed something easy.

crx_si-r is offline  
Reply With Quote
Old 10-16-2017, 04:05 PM
  #4  
Honda-Tech Member
Thread Starter
 
crx_si-r's Avatar
 
Join Date: Sep 2006
Location: NoRthERn Cali
Posts: 7,683
Default Re: coolant temp wiring

I found it. was able to source out the ecu pinouts and full service/shop manuals.

you
crx_si-r is offline  
Reply With Quote
Old 10-16-2017, 05:29 PM
  #5  
Honda-Tech Member
 
Ryanthegreat1's Avatar
 
Join Date: Jul 2005
Posts: 298
Default Re: coolant temp wiring

Originally Posted by crx_si-r View Post
I tried joining insightcentral.com but can't for some reason.
Don't bother, they don't know what a K series is and they will ridicule you for not getting 70mpg.

Glad you got it sorted. You should post up what the engine came from and what pin is missing to help the next guy out.
Ryanthegreat1 is offline  
Reply With Quote
Old 10-16-2017, 07:09 PM
  #6  
Honda-Tech Member
Thread Starter
 
crx_si-r's Avatar
 
Join Date: Sep 2006
Location: NoRthERn Cali
Posts: 7,683
Default Re: coolant temp wiring

mianly wanted to join because in a search it said the service manual was stickied. lol
crx_si-r is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
otterslide
Honda Accord (2013 - Current)
2
10-23-2017 11:15 AM
2001GSRSC
Honda Accord (1990 - 2002)
0
09-28-2017 01:40 PM
godluvstegs
Honda Civic / Del Sol (1992 - 2000)
31
08-17-2017 06:24 PM
chicklet
Tech / Misc
1
09-09-2016 09:33 AM
chrysler kid
Honda Civic / Del Sol (1992 - 2000)
4
07-30-2016 06:02 PM


Thread Tools
Search this Thread
Quick Reply: coolant temp wiring


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: