It's important that the Service Engine Soon light on your Saturn SC be working. It's the only way to tell whether the engine computer has detected a fault. When the ignition is in on position the service engine soon light should turn on. When the ignition is in run position (and your Saturn's engine is running) the Service Engine Soon light should turn off. This will indicate everything is functioning normally. If the Service Engine Soon light stays on after the engine has started running, then a Trouble Code has been stored in the engine computer and it must be retrieved in order to locate the source of the problem.
You have until the expiration of the current registration date (sticker) to complete the necessary repairs and pass a smog check. You may obtain a Temporary Registration Permit from the DMV if you will need more time which can extend the time you may legally drive your Saturn SC for up to 90 days.
