flashing SYS light?
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Originally Posted by JJ 86
what causes the sys light to flash?
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
the SYS code has little to do with the MPG, unless there is a SES that can't flash, ie, the ECU has taken a crap.
I don't know what year you have, but check this out:
C4 Guru - Pulling CCM Codes 1992-1993
I don't know what year you have, but check this out:
C4 Guru - Pulling CCM Codes 1992-1993
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Advanced
Joined: Aug 2005
Posts: 53
Likes: 0
From: Temecula CA
Originally Posted by Steel Blue 91
Check your charging system and battery. The flashing SYS on the digital display is usually 1) aftermarket radio install, or 2) battery starting to go end of life.
Le Mans Master
Joined: Sep 2000
Posts: 6,647
Likes: 139
From: Willow Glen, California......................"But... Chunks is our dog!"
Originally Posted by JJ 86
thanks
Check out bogus' link for pulling codes. Good stuff.
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
O2s causing the SYS to flash?
intresting.
The SYS means that something is wrong in the Central Control Module.
You see, the CCM is a traffic cop controlling information between the ECM and the EBCM.
There are a number of codes from the CCM that are not as obvious as a bad battery or aftermarket stereo. It can mean any number of internal functions - instruments, climate control, courtesy lights, etc - could be faulty.
It also allows for easier extraction of ECM and EBCM codes.
Sadly, my document does not cover 1995. But the theory is the same.
intresting.
The SYS means that something is wrong in the Central Control Module.
You see, the CCM is a traffic cop controlling information between the ECM and the EBCM.
There are a number of codes from the CCM that are not as obvious as a bad battery or aftermarket stereo. It can mean any number of internal functions - instruments, climate control, courtesy lights, etc - could be faulty.
It also allows for easier extraction of ECM and EBCM codes.
Sadly, my document does not cover 1995. But the theory is the same.
Melting Slicks
Joined: Apr 2003
Posts: 2,150
Likes: 6
From: NS
Originally Posted by JJ 86
what causes the sys light to flash?
Racer
Joined: Aug 2000
Posts: 488
Likes: 0
From: Fremont,CA
Originally Posted by JJ 86
I replaced the battery and so far no sys light. Hopefully that fixed it. I guess time will tell. Thanks for the help!
