Gmc blower motor resistor wiring diagram
At relay. Black: ground grounded at blower Motor. Dark Blue: power when fan switch in High to energize relay. Orange: Power all the time from high speed blower fuse powers blower when relay energized. Purple: one goes to blower motor, other comes through resistor block (top of evap box) from fan switch in Lo Med1 Med2.This typical circuit diagram of the blower motor and blower resistor circuit applies to the 1996, 1997, 1998, 1999 Chevrolet/GMC 1500, 2500, and 3500 Pick Ups. More GM 4.3L, 5.0L, And 5.7L Tutorials You …
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The blower motor resistor is accessed for service by removing the glove box from the instrument panel. OPERATION The blower motor resistor is connected to the vehicle electrical system through a dedicated wire lead and connector of the HVAC wire harness. The blower motor resistor has multiple resistor wires, each of which will reduce theControl of the operation of the blower is done using the ground side of the circuit. For speeds 1,2,3, the circuit goes through the switch and through the resistor module, to the ground in the eng compartment. The circuit for speed 4, bypasses the resistor module. There is a single ground wire for the blower circuit.The main power feed is the single brown wire that connects to the blower terminal on the firewall below the battery. There is a three wire connector that plugs into the blower motor resistor which is inside the passenger compartment just above the passengers side fresh air vent, red with three pins sticking out.If any of these were to occur, the relay resistor module or wiring connector could overheat and the HVAC blower may not function on certain blower settings or may be inoperative. This may be accompanied by a burning smell or smoke. ". In my book, a burring smell or smoke are indications of an imminent fire. SO, They have electrical terminals ...
Testing the voltage at the blower motor. If there is a voltage at the motor (at least 4-6 Volt at low speed and 12 Volt at high speed), but the motor doesn't run, the motor is bad. Things like leaves, twigs, nuts, pieces of a ripped cabin filter can jam the blade of the blower motor. This happens often in many cars.A while back, I stumbled upon a COMPLETE service manual for the S-series trucks. I believe these are GM manuals as they go into crazy step-by-step detail with the complete procedure and torque spec documentation. The PDF files were broken up into sections so that I will post them in the appropriate areas. If the following links do not work, let ...1 Reply Save J Junkzoo Discussion starter · #3 · Jul 13, 2019 Thanks for the quick reply... Resistor and motor are recently replaced, along with connections elect. "grease " applied,,,At engine start, if the blower runs, it'll run until the ignition is turned off. If the blower doesn't run at ignition, then sometime down the road, it might turn on, if it wants to. Turning the mode switch to off while the fan is running always means it won't turn back on. I know the relay isn't the problem.This was preformed on a 2004 GMC Sierra with a blower resistor that had been on fire and melted the wiring.Tools you will need:-Blower Resistor and wiring (A...
Re: heat/AC wiring diagram. « Reply #6 on: April 16, 2008, 03:44:37 PM ». ok heres the diagram you posted. the brown/white wire from the selector to the resistor is yellow on my truck. this wire has …Buy Now!New Blower Motor Resistor Connector Plug from 1AAuto.com http://1aau.to/ia/1AZMX00035When the blower motor resistor fails, sometimes it can burn out ...…
Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Blower Motor Speed Resistor and Harness Pigtail Application Sum. Possible cause: Nov 14, 2012 · A/c blower motor wiring diagram. There is s...
The most common causes for AC fan blower motor not working in GMC Sierra 2500 HD are blown fuse, bad relay, resistor or control module malfunction and faulty blower motor. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. 1.so i have replaced the resistor and wiring harness and ac worked great for 3 days, now nothing. i replaced the blower motor and still nothing. i am showing 12-15v at each fan setting, 0v through the ground, and 12-15v from the resistor to the blower motor through the black wire. all fuses are appear to be ok and i am at a loss.
Part Installed: http://amzn.to/2wvFnnzIn this video we replace the HVAC blower motor resistor. This vehicle came in with the blower motor running at high spe...Chevy Wiring diagrams. format, (.pdf) & .jpg Image Format. These Diagrams are easier to read once they are printed. If you have any Pre- 1960 Chevrolet Diagrams not listed here. and would like to Share them, please send to [email protected]. Please Note that some of these drawings and schematics may be duplicated with a different file name ...Shop for the best Blower Motor Resistor Connector for your 2005 GMC Sierra 1500, and you can place your order online and pick up for free at your local O'Reilly
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