SES Light comes on....
Thread Starter
Melting Slicks
Joined: Apr 2002
Posts: 3,024
Likes: 1
From: Naples FL
SES Light comes on....
when cruising on the interstate at a constant rate of speed(70-80). It has a larger tendency to come on while it is raining/damp out. But this isn't an everyday occurance. Any ideas what would make the light come on? Thanks! :cheers:
Le Mans Master
Joined: Jul 2002
Posts: 5,818
Likes: 2
From: Alive and well in Burlington NC
Re: SES Light comes on.... (GRNVNM93)
Have you checked for codes? Mine does it also. Code 32 (EGR for a 91) is thrown every now and then since I installed the high flow cat and eliminated the pre cats. The EGR switch dosen't seem to like the lower backpressure.
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: SES Light comes on.... (GRNVNM93)
If you can get the code we can tell you what it means.
Basically take a paper clip and short pins A&B of your ALDL connector and turn on the key, watch your SES light.
It will flash any stored codes. It will flash 12 three times to let you know it's working, then it will flash each code 3 times, then it will flash 12 three times again when finished.
If you can do that for us we can tell you exactly what it means. BTW, excellent color choice. :yesnod: :cheers:
Basically take a paper clip and short pins A&B of your ALDL connector and turn on the key, watch your SES light.
It will flash any stored codes. It will flash 12 three times to let you know it's working, then it will flash each code 3 times, then it will flash 12 three times again when finished.
If you can do that for us we can tell you exactly what it means. BTW, excellent color choice. :yesnod: :cheers:
Thread Starter
Melting Slicks
Joined: Apr 2002
Posts: 3,024
Likes: 1
From: Naples FL
Re: SES Light comes on.... (Nathan Plemons)
Basically take a paper clip and short pins A&B of your ALDL connector and turn on the key, watch your SES light.
It will flash 12 three times to let you know it's working, then it will flash each code 3 times, then it will flash 12 three times again when finished.
:cheers:
[Modified by GRNVNM93, 4:16 PM 9/1/2002]
Melting Slicks
Joined: Jul 1999
Posts: 2,875
Likes: 0
From: Olive Branch (Memphis suburb) MS
Cruise-In II Veteran
Re: SES Light comes on.... (GRNVNM93)
Blake, this should help you out..... http://www.c4vettes.com/ecm.htm :cheers:
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: SES Light comes on.... (GRNVNM93)
On mine pin A & B are in the upper right corner.
The SES light actually flashes. It's kinda like morse code. You'll see how it displays 12, and figure it out pretty quick.
It will flash, short delay, flash twice. Longer delay and then do the same. It will do that 3 times, then it will flash any codes, then it will flash 12 again.
The SES light actually flashes. It's kinda like morse code. You'll see how it displays 12, and figure it out pretty quick.
It will flash, short delay, flash twice. Longer delay and then do the same. It will do that 3 times, then it will flash any codes, then it will flash 12 again.
