Service engine soon light is on 1999 Dodge Caravan. What does this mean?

You first need to tell us what the error code (s) is. The injector and gas cap are two completely different issues. Get it scanned and come back with that information.

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.

p0700 means there is a code stored in the tcm ( transmission control module). P1782 is 2-4 pressure switch sensor sense. This could be just a bad connection or a bad solenoid pack. Many times itis the beginning of the end.

You need to get the engine serviced, plain as sight. it could also be a small problem too. Hope this helps!?

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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.

disconnect the battery for a minute reconnect start it up light should be off thanks pierre

could be one or more of a couple hundred things. take it to an auto parts store like napa or autozone and they can hook their thing up to it and tell you what the problem is.

it means you have trouble codes in engine or trans controller..any performance difference of your vehicle?you need to have vehicle scanned to determine what is going on..let me know

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. ?

P-1491 RADIATOR FAN CONTROL RELAY CIRCUIT.