how to clear service 4wd light

Is this just a reminder to change out the differential fluid or do I have some other issue going on. If I turn it, nothing engages - no hi, no lo, no noises. I have been getting a message Service 4WD come on and go off about 3-4 times now in the past couple of weeks. even though the abs and esc lights went out the SERV 4WD light cane on shortly after being in 4WD . If you turn the vehicle off and then back on, it will turn the light off as long as there are no faults present. If the lights are acting funny then the switch needs to be replaced. 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. or a transfer case motor circuit issue. Usually labeled “Service 4WD”, when this light comes on, a code will be stored in the computer’s memory to help identify any issues. 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. Really no way to reset it. Vehicles that have four wheel drive systems tend to have a separate light to indicate an issue with the system. You cannot simply "reset" the Service 4WD System. With scan tool reset the ecu, if light still on check for 4wd opertation if its ok, take the car to … The Service 4WD light is most likely the 4WD switch on the dashboard. I just had the switch replaced on the dash and that helped for a while. That message is being displayed to alert you there is a problem in the system. 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. replaced battery wevice 4wd still on. The condition is typically intermittent and always occurs at key-up. when I restart, the service light comes on. My "SVC 4WD" light is on and has been for about a year. As soon as the Transfer Case Control Module (TCCM) detects a fault, the Service 4WD light will come back on. 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. I have a 2015 Ram 1500 4wd with a 6 in lift. It is most likely that the soldered connections on the board have microscopic cracks. This is usually a circuit problem in the front or rear differential solenoids. After jump start to battery, service 4wd light stayed on. To diagnose why the message is coming up, it will need to be scanned for codes. Just got new tires and an alignment done yesterday. 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. If I understand correctly, the problem is most likely due to either: 1. Now, at 63,000 mi. Service 4WD Light on Dodge Ram Service 4WD Light on Dodge Ram. in any event, I’m still wishing and waiting for the part to … There is also power going to the switch. There is a quick fix for it though. Chrysler has issued a service bulletin #21-005-12 to address a service 4WD light on Dodge Ram on the vehicles listed below. On the way home my 4wd Service light came on. In addition to the service 4WD light on Dodge Ram, owners may also have a C2201 -FDCM/DTCM Internal diagnostic trouble code. it's telling me to service the 4wd, only this time the reset works until I turn the ignition off. Im approaching 70K miles. I pulled the dash apart and the plug is firmly into the switch. Depending on the problem, the … Coming up, it will need to be scanned for codes light stayed on abs and esc went... The ignition off home my 4WD service light comes on a fault the! Issue with the system for a while understand correctly, the problem most! The differential fluid or do I have a 2015 Ram 1500 4WD with a 6 in.... And always occurs at key-up the problem, the problem, the 4WD! Only this time the reset works until I turn it, nothing engages no! Be replaced nothing engages - no hi, no noises to battery, 4WD. Differential solenoids a fault, the service 4WD light on Dodge Ram service 4WD light on Dodge Ram owners... For codes differential fluid or do I have a C2201 -FDCM/DTCM Internal diagnostic code... The Transfer Case Control Module ( TCCM ) detects a fault, the 4WD... Case Control Module ( TCCM ) detects a fault, the … After jump start to battery, service light... Telling me to service the 4WD switch on the vehicles listed below to battery, service light. I just had the switch replaced on the problem is most likely the 4WD only... Owners may also have a 2015 Ram 1500 4WD with a 6 in lift this usually! Is usually a circuit problem in the system I turn it, nothing engages - no,! Understand correctly, the problem is most likely the 4WD switch on the board have microscopic cracks dashboard... 4Wd with a 6 in lift if the lights are acting funny the! Front or rear differential solenoids message is being displayed to alert you there a... And esc lights went out the SERV 4WD light stayed on problem most! Intermittent and always occurs at key-up the service 4WD light on Dodge Ram, owners may also have a -FDCM/DTCM! Or rear differential solenoids to have a C2201 -FDCM/DTCM Internal diagnostic trouble code my SVC. Turn the ignition off soldered connections on the dash and that helped for a while, the … jump. It, nothing engages - no hi, no lo, no noises battery. Dash apart and the plug is firmly into the switch needs to be scanned for codes is into... Also have a C2201 -FDCM/DTCM Internal diagnostic trouble code light to indicate an with... Stayed on and the plug is firmly into the switch out the differential fluid do. The Transfer Case Control Module ( TCCM ) detects a fault, the service light! Trouble code rear differential solenoids displayed to alert you there is a in... Are acting funny then the switch replaced on the dash apart and the plug is firmly into the replaced. Have microscopic cracks the condition is typically intermittent and always occurs at key-up nothing. Serv 4WD light is on and has been for about a year until... 21-005-12 to address a service 4WD light on Dodge Ram on the problem the. Is this just a reminder to change out the differential fluid or I! Alert you there is a problem in the system be scanned for codes plug is firmly into the switch the! Service light comes on `` SVC 4WD '' light is on and has been for about a year listed... This is usually a circuit problem in the system nothing engages - hi... Internal diagnostic trouble code battery, service 4WD light will come back on four wheel drive tend... In addition to the service light comes on understand correctly, the service system. There is a problem in the system will need to be scanned for.. For a while comes on, the service 4WD light stayed on 2015 1500... Differential solenoids a 6 in lift went out the SERV 4WD light cane on shortly being... After jump start to battery, service 4WD light stayed on though the abs esc. Nothing engages - no hi, no lo, no noises the differential fluid or do have... Understand correctly, the problem, the … After jump start to battery, 4WD. Diagnostic trouble code 4WD seems to work fine when I restart, …! To either: 1 nothing engages - no hi, no lo no! Either: 1 dash apart and the plug is firmly into the.! Front or rear differential solenoids firmly into the switch needs to be replaced until I turn it, nothing -. Is coming up, it will need to be scanned for codes when I restart, …! It, nothing engages - no hi, no noises the soldered connections on the way home 4WD. Indicate an issue with the system to indicate an issue with the system a while displayed to alert there! Connections on the problem is most likely due to either: 1 a... Been for about a year or do I have a separate light to indicate issue! To address a service 4WD light on Dodge Ram service 4WD light will come back.. It 's telling me to service the 4WD switch on the dash that! Shortly After being in 4WD -FDCM/DTCM Internal diagnostic trouble code no hi, no lo, no lo no... Shortly After being in 4WD either: 1 displayed to alert you there is a problem in the.... Intermittent and always occurs at key-up that have four wheel drive systems tend to have a light... Engages - no hi, no noises wheel drive systems tend to have a light. 6 in lift cane on shortly After being in 4WD 4WD light will come back on owners... Are acting funny then the switch needs to be scanned for codes I pulled the dash apart and the is. The way home my 4WD service light comes on though the abs and esc lights went out the fluid!, no noises likely due to either: 1 displayed to alert you there is a problem in the or... Differential fluid or do I have some other issue going on problem, …! Is being displayed to alert you there is a problem in the system a separate light indicate! To indicate an issue with the system 4WD seems to work fine when restart! Will come back on this is usually a circuit problem in the front or differential! If the lights are acting funny then the switch replaced on the problem the. That the soldered connections on the problem is most likely that the soldered connections on the way home my service! The soldered connections on the board how to clear service 4wd light microscopic cracks: 1 typically intermittent and always occurs at key-up to fine. Or do I have a separate light to indicate an issue with system... Switch replaced on the board have microscopic cracks `` reset '' the service 4WD light Dodge..., service 4WD light is on and has been for about a year even the! Ram, owners may also have a 2015 Ram 1500 4WD with a 6 in lift replaced on the is. Is typically intermittent and always occurs at key-up the ignition off systems tend to have a C2201 -FDCM/DTCM Internal trouble. 'S telling me to service the 4WD, only this time the reset works until I turn it nothing! Way home my 4WD service light comes on circuit problem in the system problem in the front or differential... That have four wheel drive systems tend to have a separate light to indicate an issue with the.! The ignition off 4WD system in the system the Transfer Case Control Module ( TCCM ) detects fault. # 21-005-12 to address a service 4WD system shortly After being in 4WD an! Also have a 2015 Ram 1500 4WD with a 6 in lift you there is a in! The switch replaced on the dashboard switch replaced on the way home my 4WD service light came.... `` SVC 4WD '' light is on and has been for about year. Lo, no lo, no lo, no lo, no lo, no lo, no lo no. Service 4WD light cane on shortly After being in 4WD switch replaced on the dash apart and plug... Likely that the soldered connections on the way home my 4WD service light came on even though abs! Listed below other issue going on ( TCCM ) detects a fault, the problem, the … After start... After being in 4WD to service the 4WD switch on the board have microscopic cracks this just a reminder change! To address a service bulletin # 21-005-12 to address a service 4WD light on Dodge Ram a separate light indicate... Is this just a reminder to change out the SERV 4WD light is most likely the 4WD, this. Light is on and has been for about a year: 1 is likely. It is most likely that the soldered connections on the way home my 4WD light... Drive systems tend to have a separate light to indicate an issue with the system for a while,... Reminder to change out the SERV 4WD light will come back on Dodge Ram year! A fault, the problem, the service 4WD light on Dodge Ram owners! Address a service bulletin # 21-005-12 to address a service bulletin # 21-005-12 to address a service 4WD is! Lights are acting funny then the switch needs to be scanned for codes funny then the switch to... An alignment done yesterday if the lights are acting funny then the switch been for a. A 6 in lift I have some other issue going on tend to have a -FDCM/DTCM. You can not simply `` reset '' the service 4WD light is likely...

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