Do you know how to read a wiring diagram an use a DVOM - digital volt ohmmeter to test battery power an ground to the instrument cluster ? Do you have a professional scan tool to check for DTC'S - diagnostic trouble codes in all modules on the vehicle ? If not , your best bet mite be to have a qualified repair shop check it out .
Wiggle or change dash cluster fuse under hood(on Tahoe),,mostlikly the problem fuse maybe located in different place on your vehicle
There are two fuse for the instrument cluster ,IPC #31 10 amp & IGN E fuse # 22 10 amp . Both are located in the under hood fuse box. Also has two grounds - G-302 & G 303 . won't work without grounds either .
G303
LF of the passenger compartment, behind the kick panel
G302
LF of the passenger compartment, behind the kick panel
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