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2007 CHEVY SILVERADO 4WD with rotary switch. It is stuck in…

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2007 CHEVY SILVERADO 4WD...

2007 CHEVY SILVERADO 4WD with rotary switch. It is stuck in 4wd and when you turn the key on it might be in 4hi or it might be in 4lo. Switch is actually in the 2wd position. turning the switch does nothing. Codes from my scanner are C0306, C0321, C0396, B0770, B0775, B0780, B0785, B0790, B2725, C0896, U0140, U0121, C0387, C0398. i clear the codes and they will come right back. Do not have to start the vehicle just turning the key to on position might be in 4 hi or 4lo. Can hear the actuator when first turning the key on. Have tried F,N,D trick many times does not change anything. Cleared the codes and unplugged dash selector switch and then only have 2 codes B0790 AND B2725. Which i wouold assume is correct since the switch is unplugged and unable to complete the selector switch circuits. Please help do not want to replace unnecessary parts and throw away money.

Mechanic's Assistant: Can you turn the steering wheel at all? And what about the key? Is it worn or damaged?

Yes its fine there

Mechanic's Assistant: Are you fixing your Silverado yourself? What have you tried so far?

Yes. i listed them in first post

Submitted: 6 months ago.Category: Chevy
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Answered in 10 hours by:
12/30/2017
Chevy Mechanic: Todd Audette, Chevy Technician replied 6 months ago
Todd Audette
Todd Audette, Chevy Technician
Category: Chevy
Satisfied Customers: 427
Experience: Chevrolet Technician
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Hi my name is*****'m an A.S.E Certified Master Technician with 30 + yrs GM experience. I'm reviewing your question and would be happy to assist you.

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Chevy Mechanic: Todd Audette, Chevy Technician replied 6 months ago

Sorry for the delay in getting a response as i have noticed you posted this at 10:05 a.m

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