1 Fix the prob.2 deconnect the positive battery cable for 10 minutes this will reset the computer and shut off the light but it will come back on if yoou don't fix the prob. that caused it to come on.3 you can get a book on the car that has the PC codes (resons for the Ser. light to come on) in it and then use a jumer wire to find out what code the PC detected, Then fix the prob.
remove the battery cable for 1 min
service engine soon 1992 eldorado
Replace your ECTS. Get the SES codes
well it needs to be serviced...soon
The service engine soon light comes on when the engine computer has detected a malfunction and set a code. You need to have the system checked for codes to know possible causes.
Try disconnecting the battery for 1 hour. This should reset the check engine light on this vehicle as it is OBD1.
The 1992 Saturn wiper motor is located on the firewall in the engine compartment. The wiper motor will be in the center of the firewall.
check your coolant temp sensor also is the ses light on,posible egr fault
passenger side rear of the engine directly above the oil pan about 1 foot. Use a flash light as it is in a low light location.
It is possible to repair the 1992 deville check engine light if it is malfunctioning.
There are pages and pages and items that can cause a check engine light. You need to have it checked for codes with a scan tool. After repair light can be shut off with scan tool.
A 1992 Regency has an OBD I system. The easiest way to reset a service engine soon light is to disconnect the battery and leave it disconnected for a minute or two. You will lose all of your radio presets though. CAUTION: Make sure that the problem is fixed before you reset the light because it will probably come back on.