I went to autozone to check the reason thats the engine light turns on and they tell me the code means the ROV transmission sensor is sending this alert so I all ready check the oil level and is ok.
ROV transmission fail on 2001 Dodge Grand Caravan
Really need the exact code number then we can help you. The ROV is still too general. Do they mean the Rear Output Vehicle Speed Sensor. Does your Speedometer work? Because the rear Speed Sensor also drives that and it may even light the ABS warning light if it has failed.