Service Engine Soon light
Thread Starter
Intermediate
Joined: Dec 2016
Posts: 48
Likes: 1
From: Pinehurst North Carolina
Service Engine Soon light
Have a 88 C 4 4+3 that I had to jump off and recharge battery [been sitting up] Seems like I saw one time that doing that can give you SES light.
Does anyone know ? Also saw a "loose gas cap " can do the same........Also saw that disconnecting the battery ground wire can reset the SES light.
Does any of that sound possible ? Does the SES light have anything to do with oil or radiator problems ? Car seems to be running fine . Thanks
for any thoughts
Does anyone know ? Also saw a "loose gas cap " can do the same........Also saw that disconnecting the battery ground wire can reset the SES light.
Does any of that sound possible ? Does the SES light have anything to do with oil or radiator problems ? Car seems to be running fine . Thanks
for any thoughts
Drifting
Joined: Feb 2017
Posts: 1,274
Likes: 399
From: Tacoma WA
2024 C4 of the Year Finalist - Unmodified
If the SES light is lit, there will codes set to tell you what is malfunctioning and where to start troubleshooting. There are many threads on the forum that will list how to read codes with a paper clip, and will list what the codes mean.
If the SES light is lit there is a problem you should repair.
If the SES light is lit there is a problem you should repair.
Team Owner
Joined: Sep 2001
Posts: 62,154
Likes: 1,731
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
You need to pull the code that is set with an OBD1 reader or the paper clip trick on the OBD port, guessing will end up costing much more.
Do not remove the ground terminal from the battery until you have diagnosed and treated the problem the code tells you.
Do not remove the ground terminal from the battery until you have diagnosed and treated the problem the code tells you.
Melting Slicks
Joined: Aug 2011
Posts: 2,844
Likes: 176
https://mechanicbase.com/trouble-code/obd1-codes/
jumper aldl A to B and blink code, if 41 or 51 the ecm might of got zapped.
jumper aldl A to B and blink code, if 41 or 51 the ecm might of got zapped.
