Kenworth low coolant light

3. Fit warning light in a visible location. 4. Fit buzzer 5. Connect the control box plug to the various points, per diagram below: 6. Check that the radiator core is earthed. Fit an earth strap back to engine earth if necessary. NOTE: The control box should be fitted within two metres of the low water probe, to avoid electrical interference.

Red Light indicates that the truck’s brakes are not working correctly. The car should be taken to a Kenworth dealer for service. Yellow Light: This indicates that the truck’s engine is overheating. The driver should pull over and turn off the engine immediately. Once the engine has cooled down, it can be restarted and driven to a …Ah, to be able to shift those unwanted pounds with magical lasers. If only. Well, help is at hand... kinda. We look at the (sometimes iffy) science. Are you looking for some illumi...Low prices on Engine Coolant and Antifreeze for your Kenworth T680 at Advance Auto Parts. Find aftermarket and OEM parts online or at a local store near you. ... Provides protection for 5 years / 150,000 miles in light duty applications and 3 years / 300,000 miles in heavy duty applications; Formulated for long life performance; Low-silicate ...Jul 18, 2016 · My 2013 389 with an ISX 600 started having a low coolant alarm and puking coolant. Pressure tested at a TA service center held 13 psi to 15mins at which time I replaced the PSI cap. It was still puking coolant at high boost PSI levels (over 15psi) after about 1k more miles I took it in and it ended up having a dropped liner making the head ... A yellow/amber light indicates the temperature of the transmission. It's a toothed circle with a thermometer inside. When the transmission system overheats, this light flashes on the Kenworth dashboard. A low transmission fluid level or a cooling system mechanical issue might cause this to illuminate as well. ‍.System fault has caused the system to go into PM mode and close EGR valve. P1497. EGR position fault while engine is in SCR heating mode. P1498. EGR position fault while engine is not in SCR heating mode. P1500 – P1599 (Vehicle or idle speed control) P1501. Vehicle speed sensor open circuit. P1502.It's getting darker sooner, and that means more and more bicycle enthusiasts are spending their rides in little-to-no light. Try whipping up a pair of these hi-low beam headlights ...

92 posts · Joined 2016. #1 · Jun 22, 2016. Hello all, I have been getting the Low Coolant Light almost daily, but it only stays briefly. I've checked for leaks at the water pump and elsewhere, or evidence of coolant loss and have found nothing. Also, the coolant level in the reservoir tank has not dropped even a little.Kenworth T170 T270 T370 Coolant Reservoirs, Pipes, Sensors & Caps | Raney's Truck Parts. Buying Guides. Specials. Why Shop. at Raney's? 888-888-7990.Jun 3, 2011 · Ignition OFF, disconnect the harness connector at the coolant level switch. Install a 3A fused jumper wire between the signal circuit terminal and ground. Engine running, verify the low coolant indicator turns OFF. If the indicator does not turn OFF, test the signal circuit for an open/high resistance. If the indicator turns OFF, test the ... The low-light-champ Ricoh Theta SC2 ships November 29 for $299. Ricoh's Theta series of 360-degree cameras have made their way into TPG's gear arsenal from time to time over the la...A-Premium Coolant Overflow Reservoir Bottle Tank Compatible with Kenworth W900, T800, T660, T600; and Peterbilt 389, 388, 386, 385, 384, 382, 377, 367, 365, 348 $124.99 $ 124 . 99 Get it as soon as Thursday, Apr 25JOSH-10. 48 posts · Joined 2008. #2 · Jan 12, 2010. bad or broken coolant level sensor. ( located on the bottom of the coolant tank on driver side) It just pulls out the bottom. Temporary fix and test , you can unplug and jump the connector, this will allow you to be able to operate the truck as normal. Black Iron Pulling .

Speak to a service advisor. (419) 684-9388. Prevent overheating in your Kenworth T800 with our comprehensive guide to coolant system maintenance. Learn about key components, signs of overheating, common causes, regular maintenance checks, and tips for both fleet managers and truck drivers.The Kenworth T880’s temperature warning light indicates the engine is running too hot. This light typically shows that the cooling system is not functioning correctly and can be caused by various issues, including a low coolant level, a faulty thermostat, or a faulty water pump.Subject: CATGUY - C15 problems. Northeast Nebraska. Catguy, we've got a 2005 379 Pete. Yesterday drove it 280 miles one way to pick up a sprayer. On the way there, empty, the water temp light came on randomly 3 times, and stayed on for various times, less than a minute each time it came on. The check engine light came on with …2018 Kenworth T680. When driving low coolant light will come on then the red stop engine light will come on. ... The other day I had a low coolant light come on and then the stop engine light stopped filled up with coolant and at a stop light a few minutes later the stop light came back on a tech at the local de ...Low prices on Engine Coolant and Antifreeze for your Kenworth T680 at Advance Auto Parts. Find aftermarket and OEM parts online or at a local store near you. ... Provides protection for 5 years / 150,000 miles in light duty applications and 3 years / 300,000 miles in heavy duty applications; Formulated for long life performance; Low-silicate ...Derek Forbes. 269 subscribers. Subscribed. 230. 51K views 4 years ago FORBES PETROLEUM LLC. Quick guide Old stuck magnet inside resivor allows …

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Kenworth has built an extensive truck dealer network across Australia, New Zealand and Papua New Guinea that is renowned for its professionalism and excellence in the heavy duty truck industry. For more information contact your local Kenworth Dealer or go to www.kenworth.com.au DRIVER’S HANDBOOKJan 10, 2020 ... Comments36 ; Low coolant warning Light on? replacing coolant level sensor and coolant reservoir on Peterbilt. Trucker's Life · 16K views ; HOW TO ....As long as there is no wire issue, the plug will see you have coolant. Leave the ground cavity empty. All it does is provide ground. Ther other 2 are power and signal. If the sensor is bad, it grounds to the ground wire and pulls the voltage from the power wire which trips the light. You just need to bypass the other 2.A yellow/amber light indicates the temperature of the transmission. It's a toothed circle with a thermometer inside. When the transmission system overheats, this light flashes on the Kenworth dashboard. A low transmission fluid level or a cooling system mechanical issue might cause this to illuminate as well. ‍.Replacement turns off the low coolant indicator light Direct replacement for a proper fit. $57.46. Clear All. We offer a wide variety of semi truck parts and accessories from brand names that earned the respect of professional drivers and mechanics. Get great deals on Kenworth T680 cooling system switches, sensors & relays at TRUCKiD.As long as there is no wire issue, the plug will see you have coolant. Leave the ground cavity empty. All it does is provide ground. Ther other 2 are power and signal. If the sensor is bad, it grounds to the ground wire and pulls the voltage from the power wire which trips the light. You just need to bypass the other 2.

Feb 13, 2015. #3. Mike, The float in the expansion tank which triggers the light is very sensitive to coolant concentration so if you have ever topped up with water this can cause a low coolant light. You need to get the concentration of your coolant checked with a hydrometer, either one similar to home brew use or a specific coolant type with ...Inspect the harness visually and check for any damaged wring. Check the wiring right behind the connector to the sensor also. The best way to identify an issue with the wiring is to monitor the voltage at the connector with a volt meter, with the key on engine off, move the harness around to see if the voltage fluctuates.Inside the tank, there's a ball that, when the coolant gets low, will touch the sensor and give you that code. Unplug the sensor from the tank. The ball should come down and stop the coolant flow. Take a screwdriver or a pen and push the ball up and down a few times. Clean the area of debris.Repairing low coolant level engine code. Read the details here http://www.mechanicshub.com/toolbox/cummins-isb-dies…gine-code-repair/. Check out the latest m...System fault has caused the system to go into PM mode and close EGR valve. P1497. EGR position fault while engine is in SCR heating mode. P1498. EGR position fault while engine is not in SCR heating mode. P1500 – P1599 (Vehicle or idle speed control) P1501. Vehicle speed sensor open circuit. P1502.I assume that the light would come on immediately when the engine is cold if the level is actually low. As the engine comes to temperature, the coolant expands and the light should go off (unless the coolant is really low). Instead its the opposite. Car has 185,000 miles and the radiator and expansion tank have been replaced fairly recently.Low prices on Coolant Level Sensor for your Kenworth T680 at Advance Auto Parts. Find aftermarket and OEM parts online or at a local store near you. ... ready for shipping or in-store pick up. The best part is, our Kenworth T680 Coolant Level Sensor products start from as little as $71.99. When it comes to your Kenworth T680, you want parts and ...Jul 18, 2016 · My 2013 389 with an ISX 600 started having a low coolant alarm and puking coolant. Pressure tested at a TA service center held 13 psi to 15mins at which time I replaced the PSI cap. It was still puking coolant at high boost PSI levels (over 15psi) after about 1k more miles I took it in and it ended up having a dropped liner making the head ... Air Radiators is a world-class business committed to the design, manufacture and servicing of radiators and cooling systems for diesel engines. Their team has the technical expertise to design and …Jan 13, 2023 · In this video I am explaining how to bypass coolant level sensor in case when you do have correct level of coolant, but your truck shows RED CHECK ENGINE LIG...

Introduction. Kenworth, a renowned name in the commercial trucking industry, has consistently delivered top-notch heavy-duty trucks, and the T880 is no exception. Whether you're a truck owner, a fleet manager, or someone deeply involved in the commercial trucking sector, understanding the common repairs for the Kenworth T880 is essential for maintaining optimal performance and minimizing downtime.

This reliable sensor replaces the OE number KZ359001, ensuring a perfect match and seamless performance. With its precise measurements, you can accurately monitor your coolant levels and prevent any potential issues. * High Quality Coolant Level Sensor. * 3.062 Inch. * 4.437 Inch Length. * Sold Individually. * Warranty On Coolant Level Sensor ...Three position female connector kit. Low coolant level sensor connector for Kenworth, Volvo and Peterbilt. Peterbilt LCL Q21-6007. Peterbilt LCL N92-6-7001The coolant sensor is around $150.00 @ kenworth. And I got a new coolant tank for $300. I replaced myself and it worked and stopped the issue. The coolant tank comes with a new sensor already installed. These new tanks have some kind of float built inside and they break after a few years. bigstank, Dec 6, 2017. #8.2. Turn the ignition switch to the "ON" position and. disconnect the electrical lead at the coolant level. sensor on the radiator. • If the lamp fails to illuminate, check the wiring. between the coolant level sensor connector and. the module for a short circuit to ground. If the circuit. is OK, replace the module.Easy to do: With car on --. 1) unplug coolant level sensor on side of resevoir tank. 2) does the light stay on? If yes, then you've got a wiring / ground fault. 3) does light go off? If yes, then replace the sensor. AutohausAZ.com has them for about $21.00 with the o …When ur days shows low coolant level or your getting that dreaded 111 cel code. Usual suspect is the coolant level sensor. This particular video is showing ...Jan 6, 2024 · The Kenworth low coolant light indicates that the coolant level in the vehicle’s engine is low. The low coolant light is a warning sign that requires immediate attention to prevent engine damage. When the low coolant light comes on, it is important to check the coolant level and add more if necessary. If low coolant light is on and sensor/wiring has been checked, your problem is the surge tank itself. There is a "floating" metal slug that the sensor reads. That gets stuck. Only fix is to replace tank. Bad Paccar design. I have done many.I have a 2019 Kenworth T680 Paccar. The coolant level light keeps coming up and beeps. Then goes off. Replaced the - Answered by a verified Technician2. Turn the ignition switch to the "ON" position and. disconnect the electrical lead at the coolant level. sensor on the radiator. • If the lamp fails to illuminate, check the wiring. between the coolant level sensor connector and. the module for a short circuit to ground. If the circuit. is OK, replace the module.

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Your coolant level sensor makes use of a movable floating device, as well as a reed switch. The switch is capable of sensing once the radiator has a low level of coolant. During this point, you will be notified of a low coolant level. Thus, you will be able to see the light showing up on your dashboard, letting you know of this low coolant issue.Kenworth T800 low coolant Discussion in 'Trucks [ Eighteen Wheelers ]' started by Koolkgill, Aug 27, 2017. Page 2 of 2 < Prev 1 2 ... I removed a gallon and never saw that yellow light. Kenworth T600 2005 with cummins cm870. Manipal92, Oct 7, 2018. Manipal92, Oct 7, 2018 #11.Greetings, I had a "Low Coolant" light go off yesterday in my new '94 GT. The car is bone stock, I just bought it last week. I am not new to 5.0s - have had a '93 5.0 fox for 6 years and still have it - but I am new to 94/95 SN 5.0s. Anyways, I didnt have time for a lengthly diagnosis so I threw all the extra coolant I had in the overflow tank ...Feb 17, 2013 · May 16, 2011. 0. Has anyone else with a w900 or t600/t660 or t800 had the low water warning light coming on for no reason. This has been an ongoing thing with my w900 and a friend of mine has been beating his head against the wall with the same problem on a t800. I have been through 3 water level sensors and finally replaced the plug and short ... 2008 t800 kenworth ,check engine light flashing,red stop engine light solid,flashing intermitantly,low coolant light on,checked coolant -all o.k. Answered in 28 minutes by: Technician: spanky. Hi I will help with your problem Please do not rate until all your questions are answered that way you wont have to pay twice Use reply to expert …Ignition OFF, disconnect the harness connector at the coolant level switch. Install a 3A fused jumper wire between the signal circuit terminal and ground. Engine running, verify the low coolant indicator turns OFF. If the indicator does not turn OFF, test the signal circuit for an open/high resistance. If the indicator turns OFF, test the ...Sep 28, 2023 · Low Coolant Level. One of the most common causes of the coolant warning light is a low coolant level. When the coolant level drops below the recommended level, the sensor triggers the warning light. It is crucial to check the coolant level regularly and add coolant if needed. **Neglecting low coolant levels can lead to engine overheating and ... The coolant system of the Kenworth W900 is a sophisticated network of components that work together to maintain the engine's temperature at an optimal level. Understanding …The 2002 Buick Century has 3 problems reported for low coolant light on. Average repair cost is $1,200 at 82,900 miles.Problem: PACCAR Incorporated (PACCAR) is recalling certain 2021-2022 Kenworth T680, T880, W990, T800, W900 and Peterbilt 579, 567, 389, 367 vehicles equipped with a Cummins X15 engine. The capscrews that attach the flywheel to the crankshaft may have been improperly torqued, allowing the flywheel to detach.Fleetwood Excursion 40X. Start the engine. Low Coolant light comes on, then goes off. I shut off the engine and go back and check the coolant - it’s between cold min and max. Restart the engine, no issue. Leave the RV park and head for the highway. 89 miles to the ferry. As I approach the highway the ‘Low Coolant ‘ light comes on. I’m ...Dustin Hawley | Jul 30, 2023. The low coolant level warning light is an essential indicator on most modern vehicles' dashboards. It is an early warning system to alert drivers when … ….

Advance Auto Parts has 1 different Coolant Level Sensor for your vehicle, ready for shipping or in-store pick up. The best part is, our Kenworth T680 Coolant Level Sensor products start from as little as $71.99. When it comes to your Kenworth T680, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with ...The level sensor is in the radiator (as noted by several folks) about 2-3" below the filler neck, so for that sensor to close you have to be (1) quite low on coolant in the radiator and/or (2) the sensor has failed. I'd check the system for leaks first. Since your cooling system is sealed, you should have very little to no air in the radiator ...Re: 2021 M2 LOW COOLANT LEVEL Jul 20, 2020 9:03 PM I haven’t delt with a LCL code on a M2. I take it, it’s the same setup as the p4 Next Gen Cascadia P4 coolant reservoir Low Coolant Level tester what around 50 ohms full and 150 empty. I have been pulling the sensor out, measuring resistance with gentle flex on the sensor.I have a 2016 T680 with the paccar engine. I was getting all the lights and beeps. Low coolant, stop engine, power reduced. Also that annoying ding, ding, ding. Coolant isn’t low or leaking. Turns out I need a new overflow tank. I went Harbor freight, bought a magnet, aluminum tape and tried this hack today and it worked. Truck runs fine.This causes the engine to overheat, causing the computer to trigger the check engine light. Other possible causes for the light to illuminate include a coolant leak, cracked block or air gasket, compromised water hose, plugged-up radiator, radiator fan not working well, or a faulty water pump. 2.Dec 26, 2014 · 8 posts · Joined 2014. #1 · Dec 26, 2014. On my wife's 2012 ML-350 Blutec the "low coolant level' message light has started coming on. I've checked the coolant level and it's right up to the proper level. I quickly checked with our repair guy (who recently serviced the vehicle, checked everything and topped up all the fluids) and he thinks he ... Mar 20, 2017 ... The most common reason for the coolant light to become illuminated is simply that the coolant level is too low. There may be a floating ...Edited by YouCut:https://youcutapp.page.link/BestEditor Kenworth low coolant light, Farpida N9267001 Q21-6007S Low Coolant Level Sensor Wire Repair End Pigtail Connector fit for Peterbilt & Kenworth Low Coolant Level Sensor Wire Harness 1 offer from $17.99 Avantaway Aokus for GM LS 2-Wire Pigtail - Coolant Temperature Sensor Connector - Water Temp LS1 Plug Radiator Switch OEM Color LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 LR4, Solar lights not turning on? Here are some quick tips for how to find out what's wrong and get your solar lights working again. Expert Advice On Improving Your Home Videos Latest V..., inches for K370 (279.4 mm). It is recommended that the leading edge of the body be mounted a minimum of 4 inches (102 mm) behind the cab. The result is a minimum back–of–cab clearance of 17.3 for K270 and 15 inches for K370 (381 mm) from the front axle to the leading edge of the body (A)., About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ... , The Kenworth dashboard features a yellow/amber transmission temperature warning light in the shape of a toothed circle with a thermometer inside. This indicator is designed to alert drivers when the transmission system begins to overheat, which can be caused by either low fluid levels or mechanical faults in the cooling system., Mar 29, 2023 · Red Brake Light: This light comes on when there is an issue with the brakes. It could be something as simple as low brake fluid or a more serious problem such as a brake pads that need to be replaced. Yellow Coolant Light: This light comes on when the coolant level is low. This could be due to a leak in the system or simply because the coolant ... , This causes the engine to overheat, causing the computer to trigger the check engine light. Other possible causes for the light to illuminate include a coolant leak, cracked block or air gasket, compromised water hose, plugged-up radiator, radiator fan not working well, or a faulty water pump. 2., System fault has caused the system to go into PM mode and close EGR valve. P1497. EGR position fault while engine is in SCR heating mode. P1498. EGR position fault while engine is not in SCR heating mode. P1500 – P1599 (Vehicle or idle speed control) P1501. Vehicle speed sensor open circuit. P1502., Upfront, Transparent Price. ( 191,118) Low water sensors are more commonly known, or referred to, as coolant level sensors. The purpose of these sensors is to alert the driver of low coolant level in the engine cooling system. When coolant level in the engine is low, the cooling system cannot adequately remove excess heat from the engine., Cold Laser Physical Therapy is a laser that uses low intensity light to treat sprains, strains and other tissue issues painlessly. With this relatively new procedure, there are man..., , The pins for the coolant level sensor on the OEM harness connector are pins 28 and 33. Measure resistance from ECM OEM connector(its the one with 50 wires, not 60 wires) to the level sensor connector. Should be 0.2 ohms since it's a direct line. Another test is to check continuity from the coolant circuits to all other pins in the OEM harness., The Kenworth coolant level sensor is an essential component of the cooling system in Kenworth trucks. It is designed to monitor the level of coolant in the radiator and alert the driver if the coolant level is low. This sensor plays a crucial role in preventing engine overheating and potential damage to the engine., It is a new addition to the fleet. This engine has had the DEF system deleted and the engine has been tuned with a 10% boost in HP. Before this was done, the head, head bolts and gasket were all replaced. A couple weeks later while I am out on the road, the low coolant light, check engine light, and stop engine light come on. , Greetings, I had a "Low Coolant" light go off yesterday in my new '94 GT. The car is bone stock, I just bought it last week. I am not new to 5.0s - have had a '93 5.0 fox for 6 years and still have it - but I am new to 94/95 SN 5.0s. Anyways, I didnt have time for a lengthly diagnosis so I threw all the extra coolant I had in the overflow tank ..., The price of repairing or replacing the coolant reservoir varies based on the mechanic fee and the kind of car you drive. But averagely, it will cost you around $130 to $230 to replace the reservoir. Fix manifold gasket. The repair cost of a faulty intake manifold gasket can range from $200 to around $600., Jun 19, 2023 · Farpida N9267001 Q21-6007S Low Coolant Level Sensor Wire Repair End Pigtail Connector fit for Peterbilt & Kenworth Low Coolant Level Sensor Wire Harness 1 offer from $17.99 Avantaway Aokus for GM LS 2-Wire Pigtail - Coolant Temperature Sensor Connector - Water Temp LS1 Plug Radiator Switch OEM Color LS1 LS3 LS2 LQ4 LQ9 LS6 L92 L99 L33 LR4 , Check that you have 5 volts going to that sensor and that you have a verified ground. If you do, then there is something going on in the ECM itself. If you don't, then check the pins coming from the ECM and make sure they have good contact on the harness and there are no issues. , Summary. The engine coolant over-temperature light warns about an overheating engine. Common reasons for an engine coolant over-temperature alert include coolant leaks, faulty cooling parts like fans or water pumps, and internal issues with the engine. It’s unsafe to keep driving with an illuminated temperature light., DEF level is low. Solid DEF Lamp and Check Engine Lamp Indicates lower DEF level, incorrect DEF type or an SCR system issue. Driver will experience a mild loss of engine power. If the vehicle has a DPF Switch and the DPF Lamp is flashing: 1. Park vehicle, and set up a safe exhaust area. Confirm that there is nothing on or near the exhaust ..., 92 posts · Joined 2016. #1 · Jun 22, 2016. Hello all, I have been getting the Low Coolant Light almost daily, but it only stays briefly. I've checked for leaks at the water pump and elsewhere, or evidence of coolant loss and have found nothing. Also, the coolant level in the reservoir tank has not dropped even a little., 2. Find the fill lines on the coolant tank. Find the fill lines on the coolant tank and note how much antifreeze you will need. 3. Remove the cap from the top of the tank and pour in coolant. Remove the cap from the top of the tank and pour in enough coolant to reach the top fill line. You should use a 50-50 mix of coolant and water., BESTfit Coolant Level Sensor For PACCAR Coolant Reservoir Fits Kenworth T680, T880 & Peterbilt 579. Check out our top-notch Coolant Level Sensor for Coolant Reservoir, designed specifically to fit PACCAR vehicles. This reliable sensor replaces the OE number KZ359001, ensuring a perfect match and seamless performance., The coolant sensor is around $150.00 @ kenworth. And I got a new coolant tank for $300. I replaced myself and it worked and stopped the issue. The coolant tank comes with a new sensor already installed. These new tanks have some kind of float built inside and they break after a few years. bigstank, Dec 6, 2017. #8., Key OFF, Coolant Probe PLUGGED IN, Coolant Module UNPLUGGED 2 Connector 1378 (D to Gnd) Note: This GND circuit is used by multiple components. Refer to the proper wiring schematic book < 5 Ω Yes: Go to Step 3 No: Repair wiring and retest Key ON, Coolant Probe UNPLUGGED, Coolant Module PLUGGED IN 3Connector 6401 (A to …, The Kenworth T880’s temperature warning light indicates the engine is running too hot. This light typically shows that the cooling system is not functioning correctly and can be caused by various issues, including a low coolant level, a faulty thermostat, or a faulty water pump., Some coolants, such as TRP® Extended Life Coolant, boost liner cavitation protection even further by adding nitrite to OAT, creating Nitrite Organic Additive Technology (NOAT). TRP® Extended Life Coolant can offer up to a 600,000 mi. service life with the use of just one extender., Check that you have 5 volts going to that sensor and that you have a verified ground. If you do, then there is something going on in the ECM itself. If you don't, then check the pins coming from the ECM and make sure they have good contact on the harness and there are no issues., Key OFF, Coolant Probe PLUGGED IN, Coolant Module UNPLUGGED 2 Connector 1378 (D to Gnd) Note: This GND circuit is used by multiple components. Refer to the proper wiring schematic book < 5 Ω Yes: Go to Step 3 No: Repair wiring and retest Key ON, Coolant Probe UNPLUGGED, Coolant Module PLUGGED IN 3Connector 6401 (A to …, Dollars to doughnuts your engine dropped a liner. Cummins have an issue with the higher HP engine doing this. My 2013 389 with an ISX 600 started having a low coolant alarm and puking coolant. Pressure tested at a TA service center held 13 psi to 15mins at which time I replaced the PSI cap., Key OFF, Coolant Probe PLUGGED IN, Coolant Module UNPLUGGED 2 Connector 1378 (D to Gnd) Note: This GND circuit is used by multiple components. Refer to the proper wiring schematic book < 5 Ω Yes: Go to Step 3 No: Repair wiring and retest Key ON, Coolant Probe UNPLUGGED, Coolant Module PLUGGED IN 3Connector 6401 (A to Gnd) < 0.25v Yes: Go to Step 4, The coolant system of the Kenworth W900 is a sophisticated network of components that work together to maintain the engine's temperature at an optimal level. Understanding these key components can give you an idea of all the points of failure in your W900’s cooling system: Radiator: The radiator is the heart of the coolant system., Trucks Commercial