logo
Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error
Key is off - but not
Options
Go to last post Go to first unread
Previous Topic Next Topic
JoeHoffman  
#1 Posted : Tuesday, April 5, 2022 7:32:06 PM(UTC)
JoeHoffman

Rank: Member

Groups: Registered
Joined: 1/19/2019(UTC)
Posts: 17
Man
United States
Location: Depends
Coach engine currently won't start due to an issue. So I want to look at codes via BF. Codes are displayed on the Prevost console, but I can't access them thru BlueFire. I'm new to BlueFire, but a few weeks ago I was able to get data (never tried to look at codes).

Coach has a 6 pin port and I'm using the 9 pin green adapter with an iPad. So I'm using a cable dongle to solve the 6 to 9 pin issue.

Monitor Faults is selected.
Connect to J1708 is selected.

When I connect the app, I get a blinking Blue adapter.
It indicates "Key is Off".
But when I turn on the coach key to ON, I don't get any additional data, and "key is Off" still shows.
Note: The coach engine will not start right now, that's exactly why I want to access the codes thru BF.

Why would "Key is Off" still show even when key is on but engine is not running?

Edited by user Tuesday, April 5, 2022 10:43:48 PM(UTC)  | Reason: Not specified
Back to top

Wanna join the discussion?! Login to your BlueFire Forum forum account, or Register a new forum account.
Back to top  
JoeHoffman  
#2 Posted : Friday, May 20, 2022 4:02:15 PM(UTC)
JoeHoffman

Rank: Member

Groups: Registered
Joined: 1/19/2019(UTC)
Posts: 17
Man
United States
Location: Depends
I eventually resolved this issue (including the engine not starting) by rebooting the ECU that controls the DD-60 engine. Seems the computer was screwed up.
Back to top
Mark  
#3 Posted : Saturday, May 21, 2022 10:23:08 AM(UTC)
Mark

Rank: Administration

Groups: Administrators
Joined: 4/12/2014(UTC)
Posts: 690

Was thanked: 12 time(s) in 10 post(s)
There's a possibility that the adapter caused the issue. See the Getting Started document's J1708 Data Bus section.

BTW, how did you reboot the ECU?
Back to top
JoeHoffman  
#4 Posted : Monday, May 30, 2022 3:46:42 AM(UTC)
JoeHoffman

Rank: Member

Groups: Registered
Joined: 1/19/2019(UTC)
Posts: 17
Man
United States
Location: Depends
On a prevost bus, CB19 & CB20 provide 12v power to the ECU. So simply tripping those two breakers and then resetting them will cause ECU reboot. A prevost circuit diagram will confirm the correct Circuit breakers for your specific bus, but I believe CB19 & CB20 were common for many years.
These two breakers are normally located in the electrical bay just forward of the engine, passenger side. On an H model, this is the bay that holds the engine batteries.
Back to top
Users browsing this topic
Guest
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Privacy Policy | Powered by YAF.NET 2.24.20 | YAF.NET © 2003-2024, Yet Another Forum.NET
This page was generated in 0.032 seconds.