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You need to have the ECU scanned with the OBD2 scan tool to retrieve the code that has been set. This code will tell you what part is being affected but not necessarily the defective part. To find the real problem you need diagnostic skills.
If you are referring to fault codes stored by the ECU (computer), they are codes indication what part of the vehicle has a problem and what part is being effected by the problem. It can be an emissions problem, transmission problem, or other problem.
The check engine light comes on when the ECU detects a problem with the emissions system. You will need an OBD2 scan tool (1996 & newer vehicles) in order to retrieve the code that has been set. This code will tell you what part of the system is being effected and help you to diagnose the problem. The code may or may not tell you what part is defective.
On a 1999 Civic, the code, P1758 usually means that there is a problem with the automatic transaxle. The transaxle is part of the drive train and 2wheel or 4wheel drive. This code can also mean a problem with the Clutch Solenoid.
It means there is a problem that is effecting the emissions system. You will need to have the ECU scanned to recover the code that has been set. That code will tell you what part is being effected.
Could be a problem with the wiring from the computer to the sensor.
Yes, this indicates a problem with the emissions system. Have the ECU scanned with an OBD scan tool to retrieve the code that has been set. This code will tell you what part is being effected but not necessarily the bad part.
The light is on because there is a problem with the emissions system. You need to have the ECU scanned with an OBD2 scan tool. This will retrieve the code that has been set by the ECU, (computer). This code will tell you what part is being effected. A skilled technician can then know where to start looking for the problem.
You need to have the ECU scanned with an OBD2 scanner and retrieve the code that has been set. The code will tell you what part of the emissions system is being effected. This will help you diagnose the problem. Or you can keep spending money throwing parts at the problem until you may or may not find the faulty part.
The check engine light is on because the ECU has detected a problem with the emission system. You will need to have the ECU scanned with all OBD2 scan tool to retrieve the code that has been set. This code will tell you what part is being affected. But, it will not necessarily tell you what part is defective. To determine the defective part takes diagnostic skills.
You need to have the ECU scanned with the OBD2 scan tool to retrieve the code that has been set. This code will tell you what part is being affected but not necessarily the defective part. To find the real problem you need diagnostic skills.
The code means hard faults present. This is a fatal code and will require replacement of a sensor or part. Could you tell us a bit more about the problem?