Having problems with your 2003 Saturn VUE ?

I have a 2003 saturn vue. The service engine soon light is on. I have had it checked at auto zone, no code came up. Also, when I did the emission testing, it came up but didn't give a code to tell what is wrong. It has been on for awile, but no problems. I also made sure the gas cap was on tight. Still the light stays on. Any suggestions?

Posted / edited by AnonymousUser on : 24-01-2022

Answers :


At Autozone they read the OBDII codes stored in the main computer. Errors triggered by parts such as the BCM (body control module), or the security system do not get read with a generic OBDII scanner like the one used at Autozone.

You need to go to a GM dealer. They will read the codes using a Tech 2 scan tool that can pull out codes from the several different modules that can trigger the service engine soon light. The service is usually billed half hour labor.

Before visiting the dealer you can check battery voltage (12.5 off - 13.5 engine on) and fuses. There are problems like low voltage from battery or some fuse that cause the light coming on and do not store any code in any of the modules.

Note: the service engine soon light can often be reset by disconnecting battery. If the light is on, then there are codes stored somewhere. I recommend visiting the nearest GM dealer and finding out what is wrong.
Service Engine Soon does not throw a code - this is just "hey you need an oil change" or something else that is regular maintenance. IIRC to reset this warning, put the key in the "on" position with the engine off, and sweep the accelerator pedal from stop to stop 7 times within 5 seconds.
Repair Help & Product Troubleshooting for 2003 Saturn VUE

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