Checked my sister 6.0L with my AE and got to transfer case codes. P1876 (transfer case 2 wheel drive circuit failure) & P1382 (transfer case differential lock-up solenoid circuit failure) codes. She has an 2006 F-350 4x4 CC Lariat 6.0L.

What should I check ??

Thanks in advance!

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Mike
2006 F-350 4x4 CC Lariat 6.0L