Help! Electrical problem: all service warnings are displayed
Thread Starter
2nd Gear
Joined: Jan 2019
Posts: 2
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From: Montreal, Qc
Help! Electrical problem: all service warnings are displayed
Having some electrical problems with my 2008 Z06.
I took the car out this morning and went to work with no problems. When I got back in it at noon to go out for lunch, it displayed all the service warnings.... service anti-lock system, fuel system, traction control, etc. The radio would also shut off for a couple seconds and come back on every 30 seconds or so. I also lost fuel level, coolant temp and oil pressure gauge (went to 0), during the drive home these gauges would come back ON intermittently.
When I got home I disconnected the battery for about 30 minutes. When reconnected it was still displaying the service messages so I shut it OFF and took the Honda back to work.
Anyone ever experience this or have any idea what it could be?
FWIW battery is good (car starts well) and alternator is a little over 14V while driving.
I took the car out this morning and went to work with no problems. When I got back in it at noon to go out for lunch, it displayed all the service warnings.... service anti-lock system, fuel system, traction control, etc. The radio would also shut off for a couple seconds and come back on every 30 seconds or so. I also lost fuel level, coolant temp and oil pressure gauge (went to 0), during the drive home these gauges would come back ON intermittently.
When I got home I disconnected the battery for about 30 minutes. When reconnected it was still displaying the service messages so I shut it OFF and took the Honda back to work.
Anyone ever experience this or have any idea what it could be?
FWIW battery is good (car starts well) and alternator is a little over 14V while driving.
Last edited by GuillaumeC; Jul 8, 2019 at 01:16 PM.
Moderator, Tech Contributor
Joined: Sep 2013
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From: Cape Coral, Florida
It may be a serial data bus issue...I'm in the process of doing a YouTube video on this very problem...if one of your modules...PCM,BCM,ESC, IPC loses a ground (more common) the module's 12 volt power jumps on that data line (it has to find a ground somewhere) and if it does you will see a "no start" or a "start and stall"....you will see all the DIC messages, fuel level goes to E, and water temp maxes out !!...power windows don't work...yours may be just an intermittent loss of ground...see if you have and codes...you will see "U" codes which are communication codes !!
Thread Starter
2nd Gear
Joined: Jan 2019
Posts: 2
Likes: 0
From: Montreal, Qc
I never lost window functions and the gauges would fall to 0, not max out.
The battery will hold no more than 12.4v with everything off, it's 5 years old. I picked up a new one tonight and installed it. I'll drive it to work tomorrow and see if it's still acting up. I'll also connect the scanner and see if I have any stored codes.
Thanks for the tips!
The battery will hold no more than 12.4v with everything off, it's 5 years old. I picked up a new one tonight and installed it. I'll drive it to work tomorrow and see if it's still acting up. I'll also connect the scanner and see if I have any stored codes.
Thanks for the tips!
