My "SVC 4WD" light is on and has been for about a year. With scan tool reset the ecu, if light still on check for 4wd opertation if its ok, take the car to … After jump start to battery, service 4wd light stayed on. It is most likely that the soldered connections on the board have microscopic cracks. Im approaching 70K miles. I pulled the dash apart and the plug is firmly into the switch. You cannot simply "reset" the Service 4WD System. when I restart, the service light comes on. If you turn the vehicle off and then back on, it will turn the light off as long as there are no faults present. I just had the switch replaced on the dash and that helped for a while. If I understand correctly, the problem is most likely due to either: 1. it's telling me to service the 4wd, only this time the reset works until I turn the ignition off. even though the abs and esc lights went out the SERV 4WD light cane on shortly after being in 4WD . replaced battery wevice 4wd still on. The Service 4WD light is most likely the 4WD switch on the dashboard. Usually labeled “Service 4WD”, when this light comes on, a code will be stored in the computer’s memory to help identify any issues. I think because it’s a manual engagement of 4WD I was actually IN 4WD despite the lights not showing up, but it didn’t feel exactly right. In addition to the service 4WD light on Dodge Ram, owners may also have a C2201 -FDCM/DTCM Internal diagnostic trouble code. Vehicles that have four wheel drive systems tend to have a separate light to indicate an issue with the system. Just got new tires and an alignment done yesterday. 4WD seems to work fine when I engage it. Trouble service 4wd light 2004 Suburan- resets when restart most of the time, wont shift to 4wd when lights are out on dash or and service light is on, conections look good. I have a 2015 Ram 1500 4wd with a 6 in lift. Now, at 63,000 mi. Chrysler has issued a service bulletin #21-005-12 to address a service 4WD light on Dodge Ram on the vehicles listed below. I have been getting a message Service 4WD come on and go off about 3-4 times now in the past couple of weeks. As soon as the Transfer Case Control Module (TCCM) detects a fault, the Service 4WD light will come back on. That message is being displayed to alert you there is a problem in the system. Service 4WD Light on Dodge Ram Service 4WD Light on Dodge Ram. or a transfer case motor circuit issue. This is usually a circuit problem in the front or rear differential solenoids. Is this just a reminder to change out the differential fluid or do I have some other issue going on. The condition is typically intermittent and always occurs at key-up. On the way home my 4wd Service light came on. To diagnose why the message is coming up, it will need to be scanned for codes. Really no way to reset it. If I turn it, nothing engages - no hi, no lo, no noises. ConditionSome customers may comment that the 4WD/AWD indicator lights on the selector switch do not work, or the 4WD/AWD system may be inoperative and/or the service 4WD light is illuminated. On vehicles where four-wheel drive is only activated on demand — that is to say, when traction conditions require it — this light shows up to tell you that it’s been activated. There is also power going to the switch. A lot of the time, a flashing 4WD light is no reason to be alarmed, because it simply means that the system is working as designed. There is a quick fix for it though. If the lights are acting funny then the switch needs to be replaced. Depending on the problem, the … in any event, I’m still wishing and waiting for the part to … No lo, no lo, no noises and that helped for a while and has been for about year! It will need to be scanned for codes start to battery, service 4WD light Dodge. Trouble code I have a C2201 -FDCM/DTCM Internal diagnostic trouble code switch the! 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