I HAVE A 4 DOOR 4X4 WITH 3 BUTTON 4WD SWITCH

1996 GMC Jimmy

Tiny

cjessee0523

February, 18, 2013 AT 3:26 AM

I have a 4 door 4x4 with 3 button 4wd switch. It will not shift into 4hi. Work in 2hi and 4lo. I replaced the transfer case encoder motor. The actuator does work. Dtc is #2. How do I test the tccm?

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