![1988-98 Chevy and GMC C/K 1500/2500/3500 Pickup Trucks, Blazer, Tahoe, Suburban, and Yukon On-Board Diagnostic System and Trouble Codes | Haynes Manuals 1988-98 Chevy and GMC C/K 1500/2500/3500 Pickup Trucks, Blazer, Tahoe, Suburban, and Yukon On-Board Diagnostic System and Trouble Codes | Haynes Manuals](https://haynes.com/en-us/sites/default/files/styles/opengraph/public/Chevy%20C1500%20Digital.jpg?itok=f2zY6I_A)
1988-98 Chevy and GMC C/K 1500/2500/3500 Pickup Trucks, Blazer, Tahoe, Suburban, and Yukon On-Board Diagnostic System and Trouble Codes | Haynes Manuals
![I am having a problem with my Blazer's 4x4. When I press the 4 switch the 4 light blinks, I hear a click from the TCCM I am having a problem with my Blazer's 4x4. When I press the 4 switch the 4 light blinks, I hear a click from the TCCM](https://www.justanswer.com/uploads/GMGreatWrench/2008-11-14_003237_front_diff.gif)
I am having a problem with my Blazer's 4x4. When I press the 4 switch the 4 light blinks, I hear a click from the TCCM
![I am having a problem with my Blazer's 4x4. When I press the 4 switch the 4 light blinks, I hear a click from the TCCM I am having a problem with my Blazer's 4x4. When I press the 4 switch the 4 light blinks, I hear a click from the TCCM](https://www.justanswer.com/uploads/GMGreatWrench/2008-11-20_032818_4x4_switch.gif)
I am having a problem with my Blazer's 4x4. When I press the 4 switch the 4 light blinks, I hear a click from the TCCM
![Replace transfer case motor flashing 4wd light fix explained Chevy GMC remove front Driveshaft - YouTube Replace transfer case motor flashing 4wd light fix explained Chevy GMC remove front Driveshaft - YouTube](https://i.ytimg.com/vi/IvhvojrXChQ/mqdefault.jpg)
Replace transfer case motor flashing 4wd light fix explained Chevy GMC remove front Driveshaft - YouTube
![Amazon.com: 7x6 5x7 LED Headlights 2PCS, Dot Approved H6054 LED Headlights Rectangle 6054 H5054 Headlamp Hi/Low Sealed Beam for Chevy Blazer Express Van, for Je-ep YJ XJ Cherokee Truck Van : Automotive Amazon.com: 7x6 5x7 LED Headlights 2PCS, Dot Approved H6054 LED Headlights Rectangle 6054 H5054 Headlamp Hi/Low Sealed Beam for Chevy Blazer Express Van, for Je-ep YJ XJ Cherokee Truck Van : Automotive](https://m.media-amazon.com/images/I/81cYyajDGaL._AC_UF894,1000_QL80_.jpg)