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Discussion Starter · #1 ·
This should be an easy answer, I tried finding it but no luck. When truck is in hi, there is no light on dash, correct? Just the dash car icon that shows it in 4x4? When in 4LO, should the light stay on constant or should it blink the whole time? I'm trying to diagnose issues.

Thanks,
 

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● The 4WD shift indicator light may blink while shifting from one drive mode to the other. When the shifting is completed, the 4WD shift indicator light will come on.
● If the 4WD warning light comes on, the 4WD indicator light goes out.
CAUTION ● If the 4WD shift indicator light indication changes to 2WD when the 4WD shift switch is shifted to the 4H position at low ambient temperatures, the 2WD mode may be being engaged due to malfunctioning drive system. If the indicator does not return to normal and the 4WD warning light comes on, have the system checked by the nearest NISSAN dealer. 4WD warning light
Warning light Comes on or blinks when:
Comes on
There is a malfunction in the 4–wheel drive system
Blinks slowly
The difference in wheel rotation is large
The 4WD warning light is located in the meter.
The 4WD warning light comes on when the key switch is turned to ON. It turns off soon after the engine is started. If any malfunction occurs in the 4WD system when the key switch is ON, the warning light will either remain illuminated or blink. If the 4WD warning light comes on, the 4WD shift indicator light goes out. Alargedifferencebetweenthediametersoffront and rear wheels will make the warning light blink slowly (about once per two seconds). Change the 4WD shift switch into 2WD and do not drive fast.
CAUTION ● If the warning light comes on or blinks slowly during operation or rapidly after stopping the vehicle for a while, have your vehicle checked by a NISSAN dealer as soon as possible. ● Shifting between 4H and 4LO is not recommended when the 4WD warning light turns on.
LSD0147
5-28 Starting and driving
● When the warning light comes on, the 2WD mode may be engaged even if the 4WD shift switch is in 4H. Be especially careful when driving. If corresponding parts are malfunctioning, the 4WD mode will not be engaged even if the 4WD shift switch is shifted. ● Donotdrivethevehicleinthe4Hor4LO positionondryhardsurfaceroads.Driving on dry, hard surfaces in 4H or 4LO maycauseunnecessarynoise,tirewear and increased fuel consumption. If the 4WD warning light turns on when you are driving on dry hard surface roads: – inthe4Hposition,shiftthe4WDshift switch to 2WD. – in the 4LO position, stop the vehicle, move the automatic transmission shift selector lever to the N position with the brake pedal depressed, and shift the 4WD shift switch to 2WD. ● If the warning light is still on after the above operation, have your vehicle checkedbyaNISSANdealerassoonas possible.
 

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Discussion Starter · #3 ·
Something is up with front diff. Just spoke to shop and it's not going into 4LO. Having them tear into it and hopefully they can rebuild it all or fix whatever parts it may need. Thanks for the full page info, getting to know this truck pretty well in the 4 + months I've owned it, good and bad.
 
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