4WD HI light only flashes, but 4WD works.
#1
4WD HI light only flashes, but 4WD works.
I have a 2004 blazer. When i push the 4 HI button it flashes and never goes solid, but the 4WD works fine. When I push 2 HI it flashes for a moment then goes solid and the 4WD disengages fine. Shouldn't the 4 HI light go solid after a few moments? What's up with that?
Thanks for your help!
Thanks for your help!
#2
from another thread
https://blazerforum.com/forum/showth...lashing&page=2
These flashing light issues are typically caused by encoder faults or a fault between the TCCM and the encoder causing the TCCM to revert back to the previously chosen mode. First check to make sure that the connection to the TCCM and to the encoder motor on the side of the transfer case are clean and corrosion free. If that checks out, then you may need to dig a bit deeper into the system.
For those with the NV233 transfer case (3-button dash switch), there are some pretty good threads in the Tech Article (DIY) section.
For those with the NV236 transfer case (4-button dash switch), you need a scan tool capable of accessing the TCCM to read the codes present for some direction.
For those with the NV233 transfer case (3-button dash switch), there are some pretty good threads in the Tech Article (DIY) section.
For those with the NV236 transfer case (4-button dash switch), you need a scan tool capable of accessing the TCCM to read the codes present for some direction.
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