4wd light on and locker switch flashing

4wd or NOT, 2wd, but 4wd both ends match.
well , not wanting to pulled cover off and have GL5 lube all over
or #2 googling for all Jeep axle codes. (your call)
there is no CHEVY RPO code build list\
#3you call jeep dealer give VIN and he tells build list to you.

or the tests. #4
put car in 2wd, but one rear tire on ICE or wet grass
then move forward quick. (gas pedal

if both tires spin car moves is Positration clutch packed rear gear set.(or lockers of many kinds)
if limited slip 4 gears only then one tire on grass /ice only spins fast and car does not.
there answered all 4 ways.

ok way #5, rear tires off ground both, ON JACKS STAnds safe.
in neutral 4wd box or. if not 4wd tranny in neutral.
hand spin 1 tire and both turn same direction for locker.
if it 1 spins backwards the axle is open (limited slip)
open is 4 gears (side+ spider)
Lockers have a locker or clutch pack just like seen in the A./T BOX.

lockers have vast names. but all lock up some way.
open axles means sans/locks.
I love lockers. saved my bacon vast times. even pulling super heavy boats out of the ramp, and zero slip. 2 tires spin is JOY.
even 2wd drive with a locker is a joy. on snow and ice too.
1 wheel drive is for squids.

IF you have both front wheels in the air then either wheel will spin freely unless you have diff lock or limited slip diff. That is the nature of a diff..wd means that all 4 wheels drive but only when you have a limited slip diff or a diff locker. in action . If you have both of one side wheels in a bog you will not go any where.

FSM time
ever heard of the FSM. its a magic book that tells you how to do the diagnosis of all parts on car.
get one.
alldata.com is a close subs.

Depending on the make and model, it could be the control switch on the dash or the switch that moves the gears in the transfer case.

4X4

On these issue, there are few solved help links for troubleshooting the issue easily.-------

Click the link below: ---

No 4x4 light on dash?

http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html

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4X4 Truck makes roaring noise in the front end?

http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html

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Car will not go into 4WD high or 4WD low?

http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html

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No 4x4 light on dash?

http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html

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4 wheel drive system will not disengage?

http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html

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4WD light is flashing and beeping? NO 4WD high?

http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html

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2002 Jeep Wrangler: 4WD Idiot Light is ON?

http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html

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Traction control switch will not engage on 4WD High or Low

http://whoisbyme.blogspot.com/2012/10/traction-control-switch-will-not-engage.html

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4WD light flashing and 4WD will engage after few minutes

http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html

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2008 Toyota Tundra: 4x4 Wheel Drive Light is Flashing?

http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html

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4x4 front differential will not engage the axle on ford?

http://technoanswers.blogspot.in/2012/02/4x4-front-differential-will-not-engage.html

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4x4 will not engage on Ford F150?

http://technoanswers.blogspot.in/2012/02/4x4-will-not-engage-on-ford-f150.html

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Dodge Ram 4x4 light keeps flashing

4X4 LOW LIGHT IS FLASHING ON DASH

http://technoanswers.blogspot.in/2012/09/dodge-ram-4x4-light-keeps-flashing.html

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Ford 4x4 front wheels will not engage?

http://technoanswers.blogspot.in/2012/02/ford-4x4-front-wheels-will-not-engage.html

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These details will help.

Thanks.

is the shaft from the transfer case to the front axle spinning? Check to see that your locker solenoid is still plugged in there's a plug on the drivers side rear of the engine about 10 inches from the starter that's the plug to the locker solenoid. If its plugged and your front drive shaft from the transfer case spins your locker solenoid is likely bad.

has anyone found the solution to this problem?

The rear locker will only operate when the centre diff lock is engaged (amber light on dash) and your speed is below approx. 5mph.

If the rear locker indicator does not illuminate, check the 10-amp "Gauge" fuse in the internal fuse panel.

If the light flashes but doesn't become steady, this is probably a siezed / jammed rear locker. On soft ground, repeatedly turn the locker on and off while driving in gentle circles to see if that frees it up. Also, tapping the actuator while an assistant operates the locker can help free it up.

It sounds like maybe your auto lockers in your front wheel hubs are not locking. You may be able to get them to lock if while in 4x4 you jab your brake pedal several times, sometimes this will work to get them to engage but even if this works I would advise that you either invest in a good set of manual locking hubs or replace the ones you have with new auto lockers. The auto locking 4x4 hubs are great when they work but when they don't they are not serviceable. The manual lockers are allot less likely to fail on you in the future.

Place the trans in nuetral then put the transfer case in 2HI.
when you drive on the road always have the transfer case in 2HI UNLESS you have a transfer case that has an alltime 4WD option