4wd problem on 2007 GMC Canyon

The button of the 2 hi flashes sometimes

by in Roma, TX on February 03, 2014
2 answers
ANSWER by on February 03, 2014
Have the transfer case module scanned with a professional scanner to find the trouble. Is the 4x4 working?
ANSWER by on February 03, 2014
It needs to be scanned by somebody with a Tech2 scanner to read the transfer case module and find the fault.
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