Hvac fan relay wiring diagram

Fuse Layout Chevrolet Venture 1997-2005. Cigar lighter (power outlet) fuses are located in the Instrument panel fuse box. 1997-1999 – see fuses “CIGAR/DLC” (Cigarette Lighter), “FRT PWR SCKT” (Front Electric Accessory Plug Housing) and “RR PWR SCKT” (Rear Electric Accessory Plug Housing)). 2000-2005 – see fuses “CIGAR/DIC/APO ...

The diagram above is the 5 pin relay wiring diagram. There are different kinds of relays for different purposes. It can be used for various switching. Relay can be the best option to control electrical devices automatically. 5 pin is compromised of 3 main pins and an SPDT (single pole double throw).NOTE: If the HVAC system only requires one reference, a 24VAC power source can be used to power the device locally. Radiant Floor Only (Floor Warming and/or ...Having a clear and easy-to-follow wiring diagram is key to completing your furnace fan relay wiring in an organized and efficient manner. Start by labeling all the components on your wiring diagram and taking measurements of the space available in the room. Next, use a wire stripper to remove all outer insulation from the relay wires.How to wire air conditioner compressor. This video shows you how to wire an HVAC ac compressor. I go over the location where each wire needs to go, where the...4. Feb 17, 2021. #1. I'm planning for a project where I need a NC relay with a 24 VAC coil to disable my AC condenser fan, and I could use help selecting a correct relay to use and ensuring it's wired correctly. The condenser fan (OFM in the 1st diagram) is pretty typical with 3 wires, 1 coming from the contactor (CC) and 2 coming from the run ...Save. flatlander937 · #5 · Apr 28, 2013. If your PCM isn't commanding the A/C on, it's probably because there is low pressure in the system and it's doing this to avoid damaging (read: compressor sending metal shavings through the ENTIRE system). I'm looking at a diagram now... the control side of the relay has 12+ any time the ignition ...

A better arrangement for controlling the fan on an air-conditioned vehicle is shown in Fig. 3. A pressure switch that closes on increasing high-side a/c pressure will run the fan. At highway speeds, when there's sufficient airflow over the condenser and radiator, the switch stays open and the fan doesn't run.Fuse Layout Chevrolet Venture 1997-2005. Cigar lighter (power outlet) fuses are located in the Instrument panel fuse box. 1997-1999 - see fuses "CIGAR/DLC" (Cigarette Lighter), "FRT PWR SCKT" (Front Electric Accessory Plug Housing) and "RR PWR SCKT" (Rear Electric Accessory Plug Housing)). 2000-2005 - see fuses "CIGAR/DIC/APO ...During high speed mode, the cooling fan motor and resistor operate in parallel to one another, with each receiving a separate 12 Volt source. During low speed mode: The PCM grounds the (N201) Fan Relay Control circuit, closing the relay to connect the (A16) Cooling Fan 12 Volt Supply circuit to the (N23) Cooling Fan Motor 1 Output circuit.When that happens, the blower motor runs on high speed even when the ignition and heater switches are off. Tip: Unplugging the inline fuse is the best way to stop it. Step 9. 09: Tip: If the relay’s attachment screws are stripped, cut, bend and insert a paper clip into the screw hole in the fiberglass housing.1- Importance Of Electrical Wiring For Air Conditioning Systems. In the detailed design phase, the electrical designer must size and select the wires/cables, conduits, starters, disconnects and switchgear necessary …The fan relay wiring diagram HVAC provides a wealth of information that can help you ensure proper installation and safety. The diagram will show the location of all …

The NO terminals of the relay get power only when the relay is powered. When the relay receives 12 volts of power, the relay snaps from the NC position to the NO position. The red LED and the DC fan now shut off and the green LED and the DC motor now turn on and operate. Related Resources. DPDT Relay Wiring Diagram How to Build a Relay Driver ...During a fire, the building’s fire protection system sends a 24Vdc power/signal to energize the 24Vdc fire relay. Upon receiving the 24Vdc power/signal, the magnetic coil within the relay energized and switch from a closed position to an open position. HVAC relays have two positions; a) normally closed and b) normally open.Wiring Diagram Fig. 1 - Wiring Diagram — 24ANB618--60A, 208/230--1. 2 345081-101 REV. A 1. Compressor and fan motor furnished with inherent thermal protection. ... OUTDOOR FAN RELAY START CAPACITOR START RELAY START THERMISTOR ABC R CONDENSING UNIT CHARGING INSTRUCTIONS For use with units using R-410A refrigerant COOLING ONLY CHARGING PROCEDURE50 Luxury Air Handler Fan Relay Wiring Diagram- A direct relay is used in the automotive industry to restrict and correct the flow of electricity to various electrical parts inside the automobile. They allow a small circuit to direct a highly developed flow circuit using an electromagnet to manage the flow of electricity inside the circuit.Fuse and relay box. All Volvo VN models are characterized by the common location of the main fuse and relay box, in the central part of the panel. To access it, you need to remove the protective cover. The fuse box itself will look something like this: Check the purpose of the fuses and relays with your diagram located on the back of the ...brown wire of transformer is wired to C terminal on PCB. NOTE: T terminal on PCB is used to protect the transformer. T terminal is connected through the fuse to R terminal on PCB. B. Indoor Fan 1. Wiring Indoor fan motor yellow lead is wired to C terminal on transformer. The red, blue, or black speed lead is wired to SPT terminal on fan relay ...

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This is how to Troubleshoot an HVAC Electrical Fan Relay! I go over how to read the ratings for time, how to read the resistance, where to connect the 24v, h...Hvac Fan Relay Wiring Diagram, Hvac Fan Relay Wiring Diagram – Wiring Diagram And Schematic Diagram Images Hvac Fan Relay Wiring Diagram, hvac – How should I wire this White-Rodgers fan and limit control? What. Tips for electrical wiring. Electrical wiring is a possibly hazardous job if done poorly. One should only …To replace the relay, you can try the following steps. Turn off the power of the machine. Locate the fuse relay box under the hood and remove its cover. Now, identify the cooling relay inside it. Gently pinch the relay fan and pull it to disconnect. Then, take an identical relay to replace the original one.Electric Furnace Fan Relay Wiring Diagram from diagram360.comeluxitalia.it. Print the cabling diagram off plus use highlighters in order to trace the routine. When you make use of your finger or perhaps stick to the circuit together with your eyes, it is easy to mistrace the circuit. One trick that We use is to print out a similar wiring plan ...Blower speed changes are made on the ECM Fan Control. The ECM Fan Control controls the variable speed motor. There is a bank of 8 dip switches. The dip switches work in pairs to match the airflow for the outdoor unit size (tons). cooling airflow adjustment, Fan off-delay options, and heating airflow adjustment. The switches appear as shown in ...

30 ມ.ສ. 2020 ... “When using the Halo LED on a newer HVAC unit utilizing a variable speed fan or ramping motor with constant on 24-volt control, it is ...GMC Envoy (2007 - 2009) Fuse Box Diagram. Jonathan Yarden. In this article you will find a description of fuses and relays GMC, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for). Get tips on blown fuses, replacing a fuse, and more.White Rodgers 90-380 - Fan Relay, Type 184, 24 VAC Coil, 50/60 Hz, SPNO/SPNC ... Plumbing supplies, heating supplies, HVAC supplies from SupplyHouse Homepage.HVAC Control Relay: ENG DEVICES: Canister Purge Solenoid, Mass Air Flow Sensor (MAF), AIR Pump Relay & Valve Control: DFI MDL: Direct Fire Ignition Module: OXY SEN: Oxygen Sensors (Pre and Post Converter) Relay: FAN CONT #3: Secondary Cooling Fan (Passenger's Side) FAN CONT #2: Cooling Fan Control Relay: FAN CONT #1: Primary Cooling Fan ...Amp Rating Circuits protected; 1: 15 A: Ignition switch: 2: 75 A: Interior mirror, autowipers, heater relay control: 3: 75 A: Instrument cluster: 4: 75 A: Passenger airbag deactivation indicator, passenger sensing systemNov 6, 2019 · Nov 6, 2019 - Electric Furnace Fan Relay Wiring Diagram How To Wire An Inline Duct Fan Main Furnace Er. A Factory Air Conditioning Schematic For Your Unit Can Save You Time And Money. Installation Technician Guides …We would like to show you a description here but the site won’t allow us.Trailer wiring: 43: 2010-2016: Fan High 2017: EV fan clutch 2018-2020: Not Used 2021-2022: Electro Viscous Fan Clutch (Diesel Only) 44: Starter solenoid: 45: Engine control module/Powertrain: 46: 2010-2016: Fuel System Control Module Battery 2017: Not Used 2018-2022: AC DC inverter: 47: Cooling fan – low: 51: Left high-beam headlamp: 52 ...

I am replacing the time delay relay (old pn RLY 02257) with new pn RLY 02807) for the blowerr on my Trane unit. The new part ( 20$, ), The instruction sheet with the new relay ( RLY 02807) is correctly showing the location of the High Voltage Fan terminals 1(COM) and 3(NO) My confusion comes where the terminals are not positioned the same as the instruction shows the way the terminals are ...

In addition to the power source, 12 volt relay wiring diagrams also describe how each of the contacts must be wired to the load. It is important to note that each contact requires its own wire to carry the current. For example, if the common terminal is connected to a 12V source, the other two contacts must be wired to the appropriate 12V load.Below are the wiring diagrams for the HVAC systems. First a '98, then a '99. Follow the 2 wires from the motor in each. Note on the '98 (also the '97s) the ground wire goes directly to ground but on the '99 (& later) the …Thermostat Wiring Diagrams (Color Code Guide) When you buy a new thermostat wiring bundle, it will come with a slashed number. You will typically find 18/5, 18/6, or 18/8 on the label. The first number (18 in this case) is the wire gauge. Thermostat wire should be 18 gauge to meet the electrical code.Red Wire for Air Conditioner Control Power (Hot) | How to Wire an Air Conditioner for Control. 1 The R terminal is the 24-volt hot feed from the control step-down transformer. That will power the relay, contactor, or complete the circuit in the circuit board. Finally, it will feed it with 24 volts, provide power to the thermostat, and when the ... White Rodgers 90-113 - Fan Control Center, 120 VAC Primary 24 VAC Secondary, SPDT Relay- Transformer and Relay Combination for Easy Installation on a 4"x 4"Junction Box Features Line voltage connections pre-wired Energy limiting class II transformer design Color coded pre-stripped leads Low voltage connections on terminal boardThe fan relay wiring diagram helps to identify the different parts of the system, as well as how they interact with one another. It also provides information about …A fan relay wiring diagram is an essential tool when it comes to HVAC projects. It provides a visual representation of how the system should look after wiring has been completed. This can help make sure that everything is properly connected and reduce the time needed to locate any problems or troubleshooting issues.Today we're going over the steps on how to locate, test and replace a blower motor fan relay. As shown in the video, use google images and/or a web search to...These wires will go to your relays and the PCM/ECM will control the cooling fan relays according to temperature and AC Pressure. Some PCM/ECM will have to have the fan temperatures and AC pressures tuned in. If you purchased a direct fit harness from us for an F-Body or an S-10 all of the wiring will be included, and on the S-10 Harness fan ...Push the wire connector on the fan motor's "Common" wire onto one of the contactor's "L1" prongs. Connect the compressor's wire with the "Common" or "C" function to the contactor's "L2" terminal. The black wire from the circuit breaker usually connects to the input side of the contactor's "L2" terminal. Slip the wire connector on the fan motor ...

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QUICK TIP: This is a portion of my larger "Relays Explained" video. In this quick tip we look at how to wire a 12V Automotive Relay.See the full video here:...Jun 1, 2021 · Connect the hot wire from #4 on the fan relay to one of the two terminals on the shaded pole fan motor. Connect the common wire from the other spade terminal on the fan motor to the common terminal at the inlet of the contactor 13. The student may now turn the power on to test both the fan and air conditioning positions on the thermostat. When ... MAGNETIC RELAYS. A current passing through a conductive wire covered with an insulated surface wrapped around an iron rod creates a magnetic field that draws nearby metals toward itself. Magnetic relays are manufactured using this feature. Magnetic relays are made up of three basic parts. These are relay bobbins, relay contacts and pallet.Jun 23, 2022 · The device is a scrubber that cleans air and should\must only run when the HVAC is running (running in the cool state, heat state, or just fan state). The air scrubber is a 120V device. It is currently connected to mains via a SPST relay (image included below). To activate the device, a home automation system determines if the smart thermostat ... 0:00 / 12:46 In this HVAC Training Video, I Show How the Fan Switching Relay Works and How to Troubleshoot the Coil and Switching Terminal Contacts. I take the relay apar...Fuse Layout Chevrolet Venture 1997-2005. Cigar lighter (power outlet) fuses are located in the Instrument panel fuse box. 1997-1999 – see fuses “CIGAR/DLC” (Cigarette Lighter), “FRT PWR SCKT” (Front Electric Accessory Plug Housing) and “RR PWR SCKT” (Rear Electric Accessory Plug Housing)). 2000-2005 – see fuses “CIGAR/DIC/APO ...Inside the air handler unit, the high voltage wiring powers the indoor fan, the heater and provide power for the transformer. Inside the condenser/evaporator unit, the high voltage wiring powers the outside fan and the compressor. 3- Low voltage control part: This part has (2) mode for operation which are:Fuse box in the glove compartment BMW E46. Open the glove compartment and turn the two white quick-release fasteners outward. Fuse box diagram. coded as follows. (5A)Headlamp switch, head lamp control module- LH (gas discharge headlamps),head lamp control module-RH (gas discharge headlamps)This How To focuses on how to wire a general purpose relay with a 120 Volt coil. The relay is typically used to start (or slave) a secondary device like a booster or exhaust fan. A 120 VAC coil means that you apply 120 VAC to the coil contacts (black wiring) to energize the relay and close the switched contacts (red wiring). When the 120 VAC to ... ….

Push the wire connector on the fan motor's "Common" wire onto one of the contactor's "L1" prongs. Connect the compressor's wire with the "Common" or "C" function to the contactor's "L2" terminal. The black wire from the circuit breaker usually connects to the input side of the contactor's "L2" terminal. Slip the wire connector on the fan motor ...Main #2 Instrument Cluster/Wireless Control Module/ITM/ Siren/Multifunction Switch (Steering Column Module) Fuse MINI. 20A. M14. Back Up Camera [Domestic Only] Fuse MINI. 20A. M15. Power Seat Module (s)/Audio Telematics/Daytime Running Lights Relay/Instrument Cluster/Transfer Case Module.Fan Relay Wiring Diagram Hvac. By Wiring Boards | April 9, 2022. 0 Comment. Could a fan relay cause transformer to er motor wiring diagrams ricks free auto repair advice automotive tips and how ecobee thermostat installation with an isolation electric fans gtsparkplugs understanding relays the 90 340 hvac school duct booster install on ...the air conditioner. For the 2-Wire Relay Box Heating: Set the furnace system switch to AUTO, the temperature switch (on the relay box) to HEAT, and the fan switch (on the …87 (red wire) connects to the positive wire on the electric fan. 30 (other red wire) needs constant 12-volt power from the battery. 86 (gray/white wire) goes to the ignition switch.The other six terminals are switch/contact terminals, and the relay has a diagram embossed right on the top for easy reference. The way the circuit is drawn …Wiring Diagrams INDEX UNIT 50BYN V-PH-Hz LABEL DIAGRAM FIG. NUMBER 006 008 208/230-3-60 ... (C1 and C2 on 20 ton) close. The control relay will start the indoor fan if it is not already running. The outdoor fan contactor will start the condenser fan and the compres- ... Controls to ac-Main fan relay FB-2 Parking switch FB-3 Blower motor relay FB-4 Front fog light relay ... FB-32 Wiper deicer relay 15 WIRING DIAGRAM [D5A0] 6-3 5. Wiring Diagram. B: GROUND DISTRIBUTION SU04-04A 16 6-3 [D5B0] WIRING DIAGRAM 5. Wiring Diagram ... AC: RADIATOR FAN SYSTEM SU14-03 60 6-3 [D5AC0] WIRING DIAGRAM 5. Wiring DiagramElectric window motor relay. Relay box №1 BMW 3 E36. since 1996. 1. Electric window/sun-roof relay. 2. Crash control module. 3. Heater relay. Hvac fan relay wiring diagram, Engine component current supply relay -J757- (From June 2009) A2: Starter motor relay 2 -J695- (Up to June 2009) Motronic current supply relay -J271- (From June 2009) A3: Engine component current supply relay -J757- (Up to June 2009) A4: Secondary air pump relay -J299- (engine code BAR only) (engine codes CJTC, CJTB, CJWB, CNAA, CJWC, CTWA ..., 23) remote keyless entry relay - optional 24) CAB DOME LIGHT / DOOR LAMPS / DOOR JAMB / ALARM 25) CAB FOOTLIGHTS / CIGAR LIGHTER / POWER POINT / B - PANEL POWER POINT, Relay 09 will run the fan at medium speed. Relay 13 will run the fan at high speed. (I think I also had to jumper relay 03, speed control.) I learned that, for the ECU control the fan, low speed requires relays 12 (cooling fan) and 10, and high speed requires relays 12, 03 (speed control), and 13. So, if relay 12 fails, no low OR high speed., WIRING DIAGRAMS Article Text (p. 2) 1993 Mazda Miata For Yorba Linda Miata Copyright © 1998 Mitchell Repair Information Company, LLC Saturday, May 10, 2003 11:23AM, SCGRANTURISMO. This could be a problem with Ground #200, which is located on the right side of the dashboard. In the diagrams down below I have included the Ground Distribution Wiring Diagram for your vehicle's Blower Motor, as well as a diagram of the location of Ground #200, and a guide for how to inspect the ground., A fan relay wiring diagram is an essential tool when it comes to HVAC projects. It provides a visual representation of how the system should look after wiring has been completed. This can help make sure that everything is properly connected and reduce the time needed to locate any problems or troubleshooting issues., The 90340 relay has a few different manufacturer names on it but is still the same. It's a DPDT (double pole double throw) relay with a 24 volt coil. I am g..., Access our free Wiring Diagrams Repair Guide for GM Cadillac 1967-1989 through AutoZone Rewards. These diagrams include: Fig. 1: 1971-72 Cadillac DeVille. Fig. 2: 1973 Cadillac DeVille. Fig. 3: 1974 Cadillac DeVille. Fig. 4: 1975 Cadillac DeVille. Fig. 5: 1976 Cadillac DeVille. Fig. 6: 1977-79 Cadillac DeVille and Fleetwood., About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ..., The lockout relay coil is a high-resistance coil wired in series with the contactor coil but wired in parallel with the safety switches. When the safety switches are closed, the resistance through them is VERY …, SCHEMATIC AND ROUTING DIAGRAMS HVAC SCHEMATICS Fig. 1: Module Power, Ground and Blower Motor Schematic Courtesy of GENERAL MOTORS CORP. Application Specification Metric English Actuator Retaining Screws, ALL 1.9 N.m 17 lb in HVAC Control Module Retaining Screws 1.9 N.m 17 lb in 2007 Hummer H3 2007 HVAC HVAC - …, existing relay. Also record all external wiring connections (line and low voltage). Use the color-coded terminal leads installed on the new fan control center to duplicate the wiring of the existing control. Make sure all connecting points are the same for both relays. Lead wires connecting the low voltage relay coil to terminals , 1- Importance Of Electrical Wiring For Air Conditioning Systems. In the detailed design phase, the electrical designer must size and select the wires/cables, conduits, starters, disconnects and switchgear necessary for supplying power and control to HVAC equipment. This information designed by the electrical designer will be and must appear on ..., The red wire from our relay connects directly to the cooling fan, and the black wire from the cooling fan connects to ground, both wires will utilize our supplied fan harness. If you purchase our relay kit, all required connectors are included to splice wires together., Connect the hot wire from #4 on the fan relay to one of the two terminals on the shaded pole fan motor. Connect the common wire from the other spade terminal on the fan motor to the common terminal at the inlet of the contactor 13. The student may now turn the power on to test both the fan and air conditioning positions on the thermostat. When ..., About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ..., A single-wire coolant temp sensor has only one wire, which goes to the radiator fan relay. Single-Wire-Coolant-Temperature-Sensor-Wiring-Diagram When the temperature of the engine coolant gets hot (almost 98 degree Celsius), the single-wire coolant temp sensor's resistance decrease (almost 0) and creates a connection of ground from the engine ..., Having a clear and easy-to-follow wiring diagram is key to completing your furnace fan relay wiring in an organized and efficient manner. Start by labeling all the components on your wiring diagram and taking measurements of the space available in the room. Next, use a wire stripper to remove all outer insulation from the relay wires., The furnace fan relay wiring diagram is a critical tool for maintaining a safe and comfortable temperature in your home. This diagram shows the electrical connections between the furnace, air handler, and other components of the HVAC system, and can be used by homeowners and professional technicians alike to troubleshoot problems with the ..., existing relay. Also record all external wiring connections (line and low voltage). Use the color-coded terminal leads installed on the new fan control center to duplicate the wiring of the existing control. Make sure all connecting points are the same for both relays. Lead wires connecting the low voltage relay coil to terminals , Carrier Hvac Fan Wiring Diagram. Posted by Wiring Diagram (Author) 2023-07-17 Electric Furnace Fan Relay Wiring Diagram Gallery. 44 Awesome Blower Motor Relay Wiring Diagram ..., wiring diagram index name description page aa power distribution frc 3 ... frc_j1 main_cab fuse_relay_center frc_j2 main_cab fuse_relay_center ... hvac fan a b f84 15a power door locks b f79 25a lcm4 a b f61 5a lvd sens/ vendor ttu a b x41 b+, ejb a e c f b d f76 30a, The CPU provides ground for the AC Relay, Cooling Fan Relay 1, 2, and 3, as well. I have included a wiring diagram for the Air Conditioning Circuit in the diagrams down below.I have also included testing for the CPU as well. Please use it to check the CPU and get back to us with you are able to find out. Thanks,, AC Clutch, ABS Ignition 29 1997-1999: Radio, Remote Keyless Entry, Theft-Deterrent, Shock Sensor, Trip Computer, HVAC Module, Anti-Lock Brake System Module, Security LED, R8285a1048 Resideo Honeywell Fan Center Relay Transformer Spdt 120v Amre Supply. Honeywell L4064b Combination Fan And Limit Control How To Set The Temperatures Limits On Furnace Switch. Diagnosing The Duotherm Pilot Model Furnace. Unbranded E3 Series Electric Furnace Wiring Diagram Manualzz. Hvacquick How To S …, During high speed mode, the cooling fan motor and resistor operate in parallel to one another, with each receiving a separate 12 Volt source. During low speed mode: The PCM grounds the (N201) Fan Relay Control circuit, closing the relay to connect the (A16) Cooling Fan 12 Volt Supply circuit to the (N23) Cooling Fan Motor 1 Output circuit., Condenser Fan Wiring Diagram For Hvac. Posted by For Hvac (Author) 2023-09-10 Find Out Here Electric Furnace Fan Relay Wiring Diagram., The thermostat is the control device that provides a simple user interface with the internal workings of your homes climate control system. By the use of an adjustable set-point, the job of the thermostat is to turn on either the heating or cooling system to maintain the desired room temperature in the home, and to turn off the system when the ..., 3200, 4100, 4200, 4300, 4400, 7300, 7400, 7500, 7600, 7700, 8500, 8600, MXT, RXT Models Built Oct. 1, 2005 to Feb. 28, 2007 — ELECTRICAL CIRCUIT DIAGRAMS, Wiring Diagram Fig. 1 - Wiring Diagram — 24ANB618--60A, 208/230--1. 2 345081-101 REV. A 1. Compressor and fan motor furnished with inherent thermal protection. ... OUTDOOR FAN RELAY START CAPACITOR START RELAY START THERMISTOR ABC R CONDENSING UNIT CHARGING INSTRUCTIONS For use with units using R-410A refrigerant COOLING ONLY CHARGING PROCEDURE, C s r compressor wiring diagram with voltage type relay fully4world duct booster install on doityourself com community forums honeywell l4064b combination fan and limit control how to set the temperatures limits furnace switch ford escape ac ricks free auto repair advice automotive tips capacitor connection procedure etechnog using rib relays bathroom fans lights functional devices inc bright ..., COL MOD, IR SNS, Heater Ventilation, Air Conditioning/ Automatic Temperature Control (HVAC/ ATC), Rear View Mirror (RR VW MIR), Cabin Compartment Node (CCN), Transfer Case Switch (T-CASE SW), RUN/ST, Multi-Function Control Switch (MULTIFTCN SW), Tire Pressure Monitor (TPM), Glow Plug Module (GLW PLG MOD) — Export Diesel Only: M16: 10 Amp Red, To replace the relay, you can try the following steps. Turn off the power of the machine. Locate the fuse relay box under the hood and remove its cover. Now, identify the cooling relay inside it. Gently pinch the relay fan and pull it to disconnect. Then, take an identical relay to replace the original one.