Can you trust Alldata diagnosis steps?
Thread Starter
Registered!!
Joined: Jan 2010
Posts: 19
Likes: 0
Rep Power: 0 
Can you trust Alldata diagnosis steps?
Help me out, mechanics...
Are the diag steps in Alldata generally correct?
Carefully following some steps to diagnose a problem with my air conditioner not working correctly, I'm now at a point where Alldata says to update the ECU with the latest software or replace the ECU. It seems very odd to need this make the AC work when it worked fine before.
After filling the system with freon, the compressor no longer runs unless it's hard wired. Could an ECU issue show up and prevent this from working properly?
Are the diag steps in Alldata generally correct?
Carefully following some steps to diagnose a problem with my air conditioner not working correctly, I'm now at a point where Alldata says to update the ECU with the latest software or replace the ECU. It seems very odd to need this make the AC work when it worked fine before.
After filling the system with freon, the compressor no longer runs unless it's hard wired. Could an ECU issue show up and prevent this from working properly?
Registered!!
Joined: May 2010
Posts: 3,662
Likes: 2
From: Funkytown, Tx
Rep Power: 234 
Re: Can you trust Alldata diagnosis steps?
Alldata info comes straight from the factory manuals. If it says update (re-flash) the ECM/PCM then I would have it updated at the dealer (only place to get it done).
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
solarpunk70
Mechanical Problems/Vehicle Issues and Fix-it Forum
6
Apr 12, 2016 11:43 AM
Bruce2
Mechanical Problems/Vehicle Issues and Fix-it Forum
0
Sep 27, 2015 08:45 PM
deanaZoom
Mechanical Problems/Vehicle Issues and Fix-it Forum
35
Sep 19, 2015 12:22 PM
