99 yukon 4wd service light code c0310 help

[JEFF LIL]

well i found out its an a/b open circuit but i just don't know how to fix it. my 4+4 service light is on and none of my push buttons for the 4 wheel drive are lighting up or working and its staying in 2wd. so i checked all fuses there all good so i jacked up the truck put it in gear and both drive shafts were spinning so i changed the actuator thinking that was the problem put nothing. checked all connections they were all good and that's were im at so if some one can help i would appreciate it thanks

 

[SunlitComet]

the code indicates an open motor circuit. once the actuator is replace and reconnected with ignition off. then the codes must be cleared and the system should operate normally after that.

 

[JEFF LIL]

thanks im going to go try that right now and ill let u know how it go's thanks again

---------- Post added at 06:02 PM ---------- Previous post was at 05:10 PM ----------

Tried to clear it and nothing 4+4 service light still on and both drive shafts are still spinning but front tires are not engaging and my lights on my 4wd buttons are still off that don't even flash

 

[SunlitComet]

with switch removed and ignition on do you see 12volts on pink wire and about 8 volts on light green/black wire on the wire harness connector?

 

[JEFF LIL]

I'll check later today thanks

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[JEFF LIL]

I'm not getting any volts to either one

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---------- Post added at 01:51 PM ---------- Previous post was at 01:50 PM ----------

U were talking about the switches on my dash right

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---------- Post added at 02:31 PM ---------- Previous post was at 01:51 PM ----------

I just noticed there is 2 green/black ones one gets power and one doesn't and that's at 8 volts

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---------- Post added at 02:32 PM ---------- Previous post was at 02:31 PM ----------

And pink no power

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[SunlitComet]

yes. I need to verify something can you get a pic of the connectors that plug into the switch with wire colors showing if possible and the front and back of the switch as well? I have two variations of the diagrams and there is no disclosure as which one is a luxury or non luxury versions. I should be able to tell from your pics. It is obvious that you should have Auto4wd.

---------- Post added at 11:46 AM ---------- Previous post was at 11:44 AM ----------

I just noticed there is 2 green/black ones one gets power and one doesn't and that's at 8 volts

One with power is at 8v correct?

 

[JEFF LIL]

Yes

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[JEFF LIL]

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[JEFF LIL]

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