How do I check my 1998 Dodge Caravan fault codes. My service engine soon light is on but I'd like to check it out before I take it in to the shop.

the service engine soon light(ses light) only comes on when the computer has detected a fault in the system and sets the light on and a code in the computer.you will have to have the code pulled to find out were to start your diagnosis to repair.

there is some fault that the engine's computer is documentig, and you need to get the code by having the car's OBDII (on board diagnostics) port hooked to a scanner,
this can be done for no charge at most retail auto supply stores-write down the codes and post them on here for help.

You mean either the check engine light or the service engine soon light?

It means your computer detected a fault in one of the components it monitors and you need to have the codes pulled and the problem fixed.

The engine or "check engine" light, comes on when one of several systems that control emissions or engine operation fail a start up test or when system component fails during operation. The On Board Computer (OBC II) will detect these failures, turn on the check engine light, and store a "fault code" that identifies the failure.There are several auto parts store chains and service shops that will "scan" your OBC II for free and tell you what the fault code means. If you have questions about the codes once you know them, get back to us then

The codes can be retrieved by turning your ignition switch on and off three time quickly and watch your service engine light. It will flash once pause then flash twice then it will begin to give any fault codes that have been stored. It will flash once or twice then pause then flash in concession again then pause and start another code if any. When you have retrieved all the codes available it will flash 5 times pause then flash 5 times which means it has finished. There are several sites on the net that will explain what each code stands for and which circuit needs your attention.

Visit http://www.troublecodes.net/OBD2/

Light is NOT ON FOR OIL CHANGE I DO KNOW this Right off , Check Engine Light Illuminates For Many Different Reasons, Yon
Need to Have it Checked for WHAT FAULT CODES ARE IN the ECM<= Computer this or These Code's Will Give Information As to What the Problem is It MAY BE Something Very Simple. If you Have NOT Noticed a Change in The Vehicles Preformance it Shouldnt Be A Costly Repair. Best thing to Do it( Have It Diagnosed >=Get The Fault codes FIRST ) then Come Back here Online to FixYA And Its LESS LIKELY THAT You Will BE CHeated If you Have Knowlage Before you take it in For Repair Of the Problem.Have A Great Day and By the Way What is 23 Cel. = to in USA Fer. ?

Check transmission and engine fault codes most likely a speed sensor issue

well the check engine light is directly intergrated to the vehicles main computer.often times when the vehicle is repaired the code that caused the light to come on needs to be reset. there are to forms of codes active, and stored. what often times happens is a stored code doesn't get reset and from time to time it will cause the light to come on. also it could be that even though you had the vehicle repaired it could be that they either did not fix the right problem or they never reset the codes. my suggestion is to take it back to the shop that repaired it and have them do it right. one other thing you should check is that all your fluid levels are as they should be. in most vehicles today low fluid levels ie coolant, oil,etc will cause the light to come on. hope this helps you...please rate this

Please have some one rechck the code there are no 5 diget codes,