B0413 gmc

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Low reference, 5V reference, position signal, and 2 control circuits enable the actuator to operate. The control circuits use either a ground or 12 V value to coordinate the actuator movement. When the actuator is at rest, both control circuits have a value of 12 V. In order to move the actuator, the HVAC control module grounds one of the control circuits while providing the other with 12 V. The HVAC control module reverses the polarity of the control circuits to move the actuator in the opposite direction.

B0413 gmc

From buying research to owner support, join 1. Hey guys my ac recently started acting up on my silverado.. Auto ac.. Doesn't cool as it should. Got the ac system vacuumed and recharged and didnt change anything. Seems like the ac is a lil cooler when the fan is on low and not as cool on a higher setting. I got code b Also think the passenger side vents may be throwing a lil colder air than the diver side Looked up the code and i found it might be a faulty drivers air temp actuator. What do you all think , should I replace? Anyone know where its located? Read up that these have 4 actuators.. You can post now and register later. If you have an account, sign in now to post with your account.

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Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Then it was fine for 2 days till driving on a fairly flat road with cruise on at around 55mph on a very slight incline it downshifted to like 4th and wound up then upshifted, did it a 2nd time about 1 min later and I canceled the cruise.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. I stopped to get a sandwich, started my Acadia from inside the store. Came out, started driving and noticed the heater was blowing "cold" air, even though the setting was on 90? The passenger side was blowing hot air at the normal 90 temp.

B0413 gmc

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Visited my dealer for a diagnosis. They said passenger side temp valve actuator shorted internally - from the invoice - 'diagnosed DTC B' estimate to repair, I verified that the actuator was indeed not moving, then ordered and replaced actuator with PN The system set the actuator back to the 'stuck position' as before! I attempted to recal, with the same results by removing the fuse. I don't think I hurried the procedure, but I'll try again, using the method outlined here on the forum.

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Needless to say, CJ2 is the automatic tri-zone system. Get through your installation quickly and easily by calling Test for less than 2 ohms in each control circuit end to end. If 10 ohms or greater 1. That's a really expensive trip to the dealership only to be told there's nothing to be found or fixed - come back when you have a problem. Then it was fine for 2 days till driving on a fairly flat road with cruise on at around 55mph on a very slight incline it downshifted to like 4th and wound up then upshifted, did it a 2nd time about 1 min later and I canceled the cruise. By using this site, you agree to our Terms of Use. AVS Forum. Combination meter warning reset switch warning reset More information. Please More information. Diagnostic Instructions. JayTee 62 Replies. If 1 V or greater, repair the short to voltage on the circuit. I have CJ2; C67 is which system? Verify the concern or DTC has been corrected.

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Looked up the code and i found it might be a faulty drivers air temp actuator. Join the conversation You can post now and register later. Although it is CAN based, there are enough proprietary features and functions to make this a unique protocol. K Control. This eliminates the need. Section 6. Posted June 8, Clear all DTCs. Reply to this topic Start new topic. The information presented. Sign In Sign Up. As we discussed in previous sections, transmission fluid loses certain properties More information.