SYS keeps comeing on ??
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 2,156
Likes: 3
From: La Mesa CA
SYS keeps comeing on ??
This is a 94 just got it Thu. when I picked it up we had to jump it to start it.
Should I have the battery checked. Or could it be something other than
the battery. Car starts right up but the SYS keeps comeing on.
Should I have the battery checked. Or could it be something other than
the battery. Car starts right up but the SYS keeps comeing on.
Melting Slicks
Joined: Jan 2000
Posts: 3,418
Likes: 1
From: NW Chicago Suburbs
Re: SYS keeps comeing on ?? (blk90)
When my battery is low (from sitting around in the winter) the SYS will flash. If the battery is original, or older than 3-4 years, I'd replace it.
Eric
Eric
Melting Slicks
Joined: Jul 1999
Posts: 2,875
Likes: 0
From: Olive Branch (Memphis suburb) MS
Cruise-In II Veteran
Re: SYS keeps comeing on ?? (blk90)
blk90, the SYS indicates the CCM (not the ECM, engine control module) has detected a fault. Two of the most common reasons are the CCM has seen the ignition voltage out of range(usaully just a battery going) or the radio head unit has been changed to an aftermarket unit that has a different resistance in the backlight dimmer circuit which the CCM takes to be an error(which can be fixed easily).There are a few other things that can set the SYS, but they don't effect the engine. :steering:
