Cat c15 fan override switch. Turn the key switch to the ON position. For example, you could have a faulty AC high pressure switch, manual over ride Mar 5, 2020 · 1. t side of the thermastat housing. Disconnect the ignition wire from the spark plug. The ECM then commands the fan to come on. Return to service. Result: The fan is damaged. Some things to check. With C15 Cat Engines. Spread pins or broken wires inside the insulation are somewhat common on either the fan switch or the solenoid both. Ok, with the key on and engine off, wiggle the connection at the a/c override switch. Jan 4, 2010 · Manual fan override switch on my Cat C15 in a 2007 Peterbilt 379 won't engage fan. Turn the keyswitch to the On position. Install Fan And Fan Drive (Industrial Engine) 1. Jan 26, 2014 · engine fan will not shut off in a 2005 kenworth t600 with a c15 ascert cat. There is a short circuit between . the best placement is the temp gauge at the thermostat housing, the fan stat at the front of the head and the alarm stat in the center. Jan 28, 2014 · I would start by checking AC pressure sensors along the system as if it is defective and saying ac system has high pressure , the ecm will send signal to leave fan on to cool ac condenser . Damaged fan blades 2. The harness bar was hit and miss too. On hot days it starts to overheat until the fan kicks in. Turn the keyswitch to the OFF position. Wait for 5 seconds. The vendor is UTV Inc. May 11, 2020 · 5. This configuration provides improved rigidity. Monitor the active diagnostic code screen on Cat ET. When the ECM wants the fan off, it sends out 12 volts. Click the “Disconnect” icon on Cat ET in order to disconnect Cat ET from the engine. Covers: Caterpillar 3406E, C-10, C-12, C-15, C-16 and C-18 truck engines with serial prefix WIA CPD 1MM CJP MDP MEP 2KS 2WS 3CS 6NZ 7CZ Pages: 420 Format: PDF File size: 25mb Compatibility: Windows/Mac/Tablet Notes: Bookmarked, searchable, printable, instant download The Cat 3406E, C10, C12, C15, C16, C18 Truck Engine Troubleshooting Manual in PDF format covers symptom- […] May 11, 2020 · C15 and C18 – Measure the Exhaust Temperature. See if you can get the fan to engage and disengage. Check for Spark Voltage at the Spark Plug A. 5 4L80 4" exh. (2) 46 mm (1-13/16 inch) jamming locknut (jam nut) (C) 22 mm (0. That would be my first check . May 11, 2020 · The CEM consists of the following components: Aftertreatment Regeneration Device (ARD), Diesel Particulate Filter (DPF) and a muffler. Test Step 3. running a jumper to the two terminals in the plug on the harness should turn fan back off. “Delayed Engine Shutdown” (DES) allows the engine and exhaust temperatures to cool to an acceptable level prior to shutting the engine down. The "PTO Activates Cooling Fan" parameter is programmed Jun 26, 2023 · When the manual fan switch is on the a/c fan override switch should have zero effect on the fan. These Factory printed Caterpillar C10/C12/C15 troubleshooting manual MBN. Allow the starter motor to cool for two minutes. The "PTO Activates Cooling Fan" parameter is programmed to "Continuous" and the PTO On/Off switch is on. Air flow is obstructed: Damaged fan: Result: The fan is not damaged or obstructed. Enjoy our hassle-free online checkout or call to speak to an expert. Jan 21, 2014 · There are many things that can cause the fan to say on. Andy : Aug 21, 2022 · November 6, 2023 by sam. Use Cat ET to verify that the engine rpm is 0. In order to troubleshoot a 2535-6 or 1073-6 diagnostic code, use the “Compression Brake Med/High Override” on Cat ET. Result: The switch is not operating correctly. (1) Adjustment bolt. Item:KM 99317. Short circuit : Result: A short circuit diagnostic code (-6) remains active. An inoperative fuel injection nozzle or a problem with the fuel injection pump could cause this May 12, 2020 · Check the Air Inlet Shutoff Switch A. Switch works correctly. D. find high pressure ac fan switch bypass the switch. If you do not notice any of these conditions occurring, one of the items above may be faulty and causing the fan to stay on. 87 inch) Use the following procedure to adjust the belts. :canadaCanadian Club member 27 :canada. check that switch is working by turning key. Shut down the engine and remove the valve covers. Replace the fan. any ideas what … This manual will help reduce diagnostic times on the engine electronic control system. Table 1 Troubleshooting Test Steps Values Results 1. The code is logged. Add to cart. C. Disable the fan override. Remove the obstruction. Now, what is the factory programmed fan override switch input on 04 Peterbilt with Cat? Oct 24, 2019 · Fan switch should be normally open. It provides detailed information on fault codes and their meanings, as well as step-by-step instructions on how to diagnose and repair problems related to these codes. Any time the circuit is open the fan is on. have replaced fan control valve and high pressure fan switch on a/c. Search our large inventory of New/Rebuilt/Used CAT C15 Engine Fan Clutches for sale. Feb 14, 2014 · Engine fan will not shut off in a 2005 kenworth t600 with a c15 ascert cat. * High Quality AC Pressure Switch. It doesn't. By following the troubleshooting steps mentioned above and consulting wiring diagrams, you can effectively diagnose Oct 20, 2020 · If actual fan speed matches the fan speed on Cat ET, press the “Next” button. When the a/c pressure reaches about 350 psi. Recommended Actions. Pin 11. When the engine runs at low idle, the temperature of an exhaust manifold port can indicate the condition of a fuel injection nozzle. Note: If a switch is used, the switch must be on continuous. Illustration 1 g02170084. Fits Applications: Kenworth / Caterpillar C15 ACERT Kenworth / Caterpillar C16 ACERT Cross References: 989360, 999360, f171000324, f17-1000-324, 79a9360, 99a9360, 799360, 98a9360Product Condition: Remanufactured$250 Core Cost Included In Price The Core Price added to the amount of the product you Jun 17, 2012 · A. Connect the electronic service tool to the data link connector. the coolant temp switch will show erratic voltage when you put it on the computer. Jun 25, 2013 · The best way to determine what is causing the engine fan to stay on is to connect a service tool like Cat ET software and monitor the fan and all of the switches that are connected to it. Install bolts but do not tighten. Description: If the ECM is being used to run the engine cooling fan circuit, this parameter can be programmed to have the cooling fan cycle normally (based on Coolant Temperature or Inlet Air Temperature or A/C High Pressure) or run continuously when in the Dedicated PTO Mode. Use Cat ET to observe the status of the shutdown switch. Return the shutdown switch to the RUN position. They have already discontinued this kit. TEMP SENDER AUX TRANS TEMP SENDER. These passages are drilled passages in the oil manifolds. Changed temp sensor in front of Stat housing. Illustration 1 g02226613. located on fron. a. 65 posts · Joined 2012. Adjustment Procedure. All you would need to do is wire your override switch into the fan circuit. follow the air line from the fan to the pressure switch. 1. Wiring: Connect one terminal of the switch to the power source or input terminal of the circuit. Apr 6, 2011 · The "Fan with Engine Retarder in High Mode" is programmed to "YES" and the retarder has been on at least two seconds. Use the Aftertreatment #1 Ignition Transformer Primary override on Cat ET to turn ON the ARD ignition system. Ensure that the ignition key switch is in the ON position. This high pressure / fan over ride switch monitors the A/C loops high pressure level, it enable or disable the compressor according to two pressure thresholds. Remove fan guard (1) after bolts (2) are removed. Recommended May 9, 2019 · The "A/C Switch Fan On-Time" is programmed to a value above 0 and the A/C high pressure switch is Open. Oct 16, 2020 · Use Caterpillar Electronic Technician (ET) to perform a “Fuel System Verification Test”. #19 · Jul 1, 2014. E. A low temperature indicates that no fuel is flowing to the cylinder. Helps reduce diagnostic time. Passages supply the lubrication for the crankshaft bearings and the piston crowns. Face Runout (Axial Eccentricity) of the Flywheel Housing. P92-1940-3-0600. For example, if you have a bad AC high pressure switch, it will say that the AC switch is Oct 12, 2020 · C15 and C18 – Belts – Adjust – If Equipped. May 30, 2023 · The fan override switch was also set to none, and we changed it to- J1939 Cab Controller, with no luck. Wait for five seconds. Kit Includes: Check Engine Indicator Lamp - Red Stop Engine Indicator Lamp - Amber Cruise Switch - On/Off Cruise Switch - Set/Resume Engine Brake Switch - On/Off Engine Brake Switch Mar 21, 2022 · Proceed to Test Step 3. Issues with the power supply can lead to engine starting problems and connectivity issues with diagnostic tools. This switch will allow the operator to turn Oct 15, 2020 · The “Delayed Engine Shutdown” (DES) feature allows the engine to run after the keyswitch has been turned to the OFF position. Available: Feb 25, 2024 · 2002 peterbilt 379 with cat c15 Engine fan wellnt shut off. 35 bucks or so for sensor. '93 K3500 6. Crank the engine for 30 seconds. The two wires that run from the fan solenoid to the ecm are ran wrapped in the stuff cat uses on the rest of the wiring harness. The switch for the fan over ride is opposite so when on it turns the fan off. Oil from the turbocharger returns through the oil return line (3) to the oil pan. It fits various 1995 through 2014 Peterbilt models replacing OE number 18-03836. . (2) ARD combustion head. Heavyd, Oct 10, 2009. It isolates the initial shock of the load from the rest of the electrical system. Oct 20, 2020 · B. The switch opens at 200 PSI and closes at 270 PSI. Result: The switch is operating correctly. Sometimes it would with the a/c off and sometimes it won't. Once the fan kicks on it cools down. #4 · Sep 15, 2014. Johnp3. Remove bolts that hold fan (3) to fan drive. B. have replaced fan control valve and high - Answered by a verified Technician Oct 18, 2020 · System Operation Description: Note: Refer to Troubleshooting, “Cat ET Service Features” for information about service features. Using tooling (A) wrench, loosen the jam nut (2) . Check for a wire that goes into terminal 13 (Output 4) and/or terminal 11 (Output 5). Result: The fan is obstructed. Turn the keyswitch to the Off position. So problem isn't at the switch. Switch, Sensor, and Function Label kit that is designed to be paired with our one of our Legacy Engine Installation Harness Kits for a Detroit Series 60 DDEC3, DDEC4 (p/n: 99305001) or DDEC5 engine (p/n: 99305002). $812. So the fan only comes on/off This downloadable troubleshooting manual contains code and symptom-based troubleshooting/diagnostic information for Caterpillar 3406E, C10, C12, C15, C16, C18 on-highway truck diesel engines. Sep 14, 2018 · Pin 22 is clutch pedal position switch (pedal released=complete circuit, common signal to ECM). When actual fan speed matches the fan speed on Cat ET, the calibration is complete. SCHEMATIC-379 FAMILY. How to set up the fan controls on a CAT 3406E using ET and a test light Nov 30, 2015 · Kenworth W900 fan clutch and switch description, location, and replacement. Loosen four fan drive bolts to remove belts (4). Monitor the status for the “Fan Override Switch” while the fan override switch is moved to the ON position and the OFF position. Apr 11, 2019 · The "Fan with Engine Retarder in High Mode" is programmed to "YES" and the retarder has been on at least two seconds. Caterpillar C15 MXS Truck Engine Complete Shop Service Manual $ 129. Jul 3, 2014 · 124 posts · Joined 2010. I see in a previous post person had similar issue and found broken w … read more May 11, 2020 · This connection can be hard wired to ground, or run through a switch that will connect the pin to ground when pressed. It should be released with the key on and engine off. Check ac pressure switches and … read more Feb 17, 2016 · Subject: RE: t600 kenworth fan. still nothing do have power to solenoid. Fan override input selection in the cat program is programmed at j1/p1:46. Monitor the status for the air inlet shutoff switch while the switch is depressed. Oct 14, 2020 · Probable Causes Operation of the Cooling Fan Recommended Actions Table 1 Troubleshooting Test Steps Values Results 1. Feb 17, 2023 · The fan override switch gets a ground supply from an engine ground the switch is normally closed and sends this ground back to the ECM. If you use any other method except the method that is given here, remember that the bearing clearance must be removed in order to receive the correct measurements. When the engine is cold, oil is drawn from oil pan (6) through oil pickup tube (9) to oil pump (7). Wait at least 15 seconds for activation of the diagnostic codes. Mar 10, 2022 · C15 – Cooling Fan Is Always ON. Cylinder Block Assembly. , the switch opens and the ECM no longer receives this ground. You include a relay any time you are switching a load on and off. Close and tighten fuel pressure regulating valve (2) . Fan control is on/off pwm. Mar 21, 2022 · Test Step 1. The "Fan with Engine Retarder in High Mode" is programmed to "YES" and the retarder has been on at least two seconds. Can/how do I install a manual override switch to kick the fan on sooner? Can I wire into and power the pneumatic switch manually? Page 167 Fan Override Switch / OE M / Description: The Fan Override Switch parameter is programmed to identify the Fan Override Switch connection to the Input Selection ECM. The probable root causes are listed in order below: • Manual fan override switch • Dyno mode. The ECM power supply is a critical component in the proper functioning of a CAT C15 engine. Check for OEM vehicle component failure. Examples are horns, lights, fans, AC and anything that has amperage behind it. The fan kit, not really sure what the deal was. The factory-printed Caterpillar troubleshooting manual is specifically designed for Caterpillar fault code diagnosis. Fan comes on with A/C when needed and with Jake. If one of the above is keeping the fan on, it will be easy to see. You can find it by following the air line that comes from the fan clutch hub. 220-081. 5 5 SPARE MARKER LT. 8T-5096 Dial Indicator. 3. May 12, 2020 · The nozzle is plugged with debris or there is an electrical problem with the circuit for the electric heating element. Apr 13, 2008 · A/C high pressure switch is only a couple months old. Click the “Connect” icon on Cat ET in order to connect Cat ET to the engine. The wire you need is on the rear most ECM connector. Oil flow when the engine Is cold. $ 109. Between Omaha and Des Moines, 7 miles South of I80. 0. Ensure that there are no aftermarket devices that are preventing battery voltage from reaching the ECM. Run the engine at high idle for several minutes. So to make the fan go off I unhooked the high pressure a/c switch and put a paperclip in the harness to jumper it. You should check the ECM to see if it is programmed for cooling fan because this is an option that can be disabled. Turn the key switch to the OFF position. Manual fan switch Jul 11, 2015 · The "Fan with Engine Retarder in High Mode" is programmed to "YES" and the retarder has been on at least two seconds. Illustration 1 g02519158. SK25762. You would have to verify with DDDL, but most I seen with DDEC fan controls turn fan on around 210 F and remains on for 180 seconds. SKU: TMSE9698 Categories: Cat C11/C13/C15 (serial KCA, KCB, JAM & BXS), Cat C15 (serial MXS, NXS, BXS, RKS), Caterpillar Electronic Diagnostic, Caterpillar Troubleshooting / Fault Code Manuals Tag: Caterpillar. 241. Oct 19, 2020 · The ECM has lost all communications with the Cat Monitoring System over the Cat Data Link. Note: Failure to tighten all fittings could result in serious fuel leaks. Rule out air line obstruction by taking line off fan hub and if air pours out its not that. The shutdown switch is operating correctly. Allow the engine to idle for Jan 26, 2014 · Then run the wires into the cab to a single throw switch. That is after you look for the in cab override switch. The fan driver can be tested for functionality by using the CAT ET. Aug 9, 2014 · Hollywood. The check engine lamp is illuminated. Check and record any active diagnostic codes. Refer to Troubleshooting, “Injector Solenoid – Test” for details. Mosf of the time the fan clutch solenoid is bad. PM719132. Start the engine and then connect Cat ET. Or you can wire the switch directly to the ECM and have the manual switch parameter turned on. Mar 10, 2022 · • A/C high pressure switch circuit • Manual fan override switch • Dyno mode. In you case, it may be the A/C high or low pressure switch since you are getting an A/C trouble code. It does. Nov 9, 2022 · The Fan Override Switch parameter is programmed to identify the Fan Override Switch connection to the ECM. AZDesertRat. The ECM will turn on the cooling fan, if any of the following conditions are detected by the Engine ECM: The engine coolant temperature is greater than 102 °C (216 °F). Jul 1, 2015 · The intake manifold air temperature is greater than 72 °C (162 °F) while the boost pressure is greater than 70 kPa (10 psi). Actual fan speed may not match the fan speed on Cat ET. 99 Original price was: $129. On a 3406B the thermostats should be 190F, the fan in at 205, the alarm is at 225. Share. Follow the directions that are provided on Nov 17, 2023 · Me again! On 2006 peterbilt 379 that had a Cummins in we took a c15 engine out of a peterbilt 386 with the whole ac system and sensors and all computers and ecm. Unless of course the two wires rubbed through together inside of there. Oct 20, 2020 · C15; C18; C7; Cat ID; D330; Delco 27SI; EL-740; Engine News; Programming; Service Magazine; Special Instruction; Troubleshooting; Uncategorized; Recent Posts. Like. Check the Operation of the Cooling Fan… Mar 29, 2008 · Couple of weeks ago while driving my KW with the a/c on my engine fan came on and wouldn't shut off. The system consists of the following components: Illustration 1 g01914641 Air inlet and exhaust system (1) Air-to-air aftercooler (ATAAC) (2) Exhaust manifold (3) Turbocharger (4) Air Cleaner (5) Clean Emissions Mar 22, 2019 · The ECM controls the low side (ground) of the engine fan relay to cycle the fan as needed. Aug 23, 2012 · Cat coolant temp sensor. No check engine light, temp is 190. The ECM is counting after the A/C high pressure switch has closed. Inspect the J1/P1 ECM connector. Includes fault codes & wire diagrams. If the leakage is not located, add the appropriate dye to the fuel tanks. Disconnect the Suspect Sensor. 3397-9: 4783-9: DPF #1 Soot Loading Sensor : Abnormal Update Rate: The ECM has lost all communications with the DPF #1 Soot Loading Sensor over the Cat Data Link. This parameter can be programmed to one of the available hard-wired options or J1939 data-link source inputs. and drive around and see if problems continues. 99. Click the “Disconnect” icon on Cat ET in order to disconnect Cat ET from the engine ECM. Cat® Water Temperature Switch (Engine Coolant) Aug 22, 2012 · The "A/C Switch Fan On-Time" is programmed to a value above 0 and the A/C high pressure switch is Open. If pin 46 on the J1/P1 engine ECM connector is not grounded, engine speed will not elevate and regeneration will not occur. Apr 21, 2024 · Programming – PTO Activates Cooling Fan. The manual fan override switch is on. I have to say, this fan kit, and the harness bar are the only things I can remember members having trouble with. There is no fan override switch on the dash, unless you're referring to something else. Start the engine. '88 379 exhd 3406C 15 40s 10 pete unimounts. If the delayed engine shutdown is aborted, potential damage to the engine and/or aftertreatment system can occur. Jul 13, 2022 · Oil from the oil filter is sent to the oil manifold (1) in the cylinder block and to the oil supply line (2) for the turbocharger. 3533 posts · Joined 2009. a4t-1600 - 2/17/2016 18:00 Could be the high pressure switch for the AC feeding juice to the fan control switch in the water rail or the fan control switch in the water rail. Inspect the fan for the following conditions: 1. Goodysnap, Nov 11, 2020. Oct 10, 2009 #3. 2. Programming – A/C Pressure Switch Fan-On Time; Programming – Minimum & Maximum Idle Shutdown Outside Temperature; Programming – Allow Idle Shutdown Override; Programming – Idle Four input connections can be used in order to connect the "Fan Override Switch". Description. Ensure that there are no override switches that are creating the problem. Allow the engine to idle for 3 minutes. The current must then be decremented or incremented in order to change fan speed. with exchange. Jul 7, 2014 · J. Probable Causes. The coolant gauge reading and high temp warning light are signaled from Kenworth supplied sending units, not the engine ECM. Oct 14, 2020 · B. #2. Belt tensioner. the high pressure trinary should have 3 wires, and be in the smaller diameter line. Mar 10, 2022 · 1. Contact AP Air for Pricing and Availability at (800) 806-5312 Jun 21, 2013 · I have a Cat C15 in a Freightliner. Sep 9, 2021 · Turn the manual fan switch to off and power comes back Immediately. Jul 21, 2022 · Allow the starter motor to cool for two minutes. CEM (typical) (1) Relay for the ARD nozzle heater. May 29, 2011 · An R 12 switch should kick the fan in at lower pressure that one made for R 134 . Proceed to Test Step 4. Triple J. Turn the keyswitch to the ON position. unplug and put paperclip inside. The "A/C Switch Fan On-Time" is programmed to a value above 0 and the A/C high pressure switch is Open. Oct 20, 2020 · In order to troubleshoot a 2533-6 or 1072-6 diagnostic code, use the “Compression Brake Low/High Override” on Cat ET. Repeat Step 7 until the engine starts and the engine runs. When it wants the fan off, it removes the 12 volts. Switch status: Result: The status of the shutdown switch changed states after returning the shutdown switch to the RUN position. My a/c is in perfect working condition otherwise it'll freeze you out on any setting. 99 Current price is: $109. May 13, 2020 · C15 and C18 – Flywheel Housing – Inspect. Aug 30, 2011 · The fan should turn ON at 205F or temperatures greater than 205F, however the ECM sends the command to a relay. Action: Press and hold the switch to activate the override state, release the switch to return to the normal operation. There is an active diagnostic code for the coolant temperature sensor. 28590 posts · Joined 2012. Remove the four fan drive bolts (6) and remove fan drive (5). FRM. Oct 16, 2020 · A. Follow the troubleshooting procedure in order to identify the root cause of the problem. Click the “Connect” icon on Cat ET in order to connect Cat ET to the engine ECM. should hear it click. Verify that the problem is resolved. A. Toronto, Ont. Related products 1989-1994 - Cat C15 Engine. I would also check to make sure the fan override switch inside cab is not defective . Oct 10, 2009 · 6,040. Feb 4, 2009. TRAILER PLUG RIGHT FUEL TANK LEFT FUEL TANK FRONT DRIVER TEMP SENDER REAR DRIVER. I am really starting to lean towards the ECM being bad since it is getting signal that the engine is hot, but not kicking the fan on even though you can kick the fan on with ET. It is an electric solenoid that turns the fan on and off. Connect the other terminal of the switch to the controlling device or output terminal of the circuit. Check the Status of the “Fan Override Switch” A. Check the… May 13, 2020 · C15 and C18 – Basic Engine. 63. Some type of override switch is interrupting the power Oct 14, 2020 · B. There is an active diagnostic code for the 217-5793: Switch-Water Temperature | Cat® Parts Store. AIR. Disconnect the sensor with the “voltage low” diagnostic code (short circuit). Cooling passages for the top piston ring are located in the top deck of the block. Closed or jumpered should change you input signal to Insite (ECM). Feb 1, 2009 · The engine fan will only stay on for a few reasons. Activate the fan override. it could also be the high pressure ac fan switch. York Compressor • Left Hand Suction, Tube O-Ring Binary/Fan Override Switch Harness. Connect the 368-6232 Spark Tester between ignition wire and the spark plug. #8 · Jun 18, 2012. Perform the following diagnostic procedures in order: 1. Wait at least 30 seconds in order for the diagnostic code to become active. F. Put fan drive (1) in position on the cylinder block. The switch itself allows the Operator to turn on the Cooling Fan at any time, resulting in improved retarding/braking and Engine Nov 5, 2014 · If was reflashed with an updated file it will come on at 216 degrees. 2005 Peterbilt 379 ***** with Cat C15 ACERT. Disconnect the harness at the valve cover connector. #2 · Jul 3, 2014. The "Fan Override Switch" can be programmed to the following ECM pins: J1/P1:7 (Input 4) J1/P1:47 (Input 5) J1/P1:6 (Input 6) J1/P1:46 (Input 7) The J1939 data link can also be used to control the "Fan Override Switch". If your not losing alot of air then rule out air line leak. Proceed to Test Step 2. Unplugging switch should engage fan if it isn't already. I've traced them back to the ecm and theres no evidence of anything rubbing through it. For example, if you have a bad AC high pressure switch, it will say that the AC switch is Apr 11, 2019 · The "Fan with Engine Retarder in High Mode" is programmed to "YES" and the retarder has been on at least two seconds. Add To Cart. Debris against the fan blades 3. Sep 18, 2011 · Sep 18, 2008. The ECM only supplies ground for that circuit when fan should be off. If that is so why can't it b reflashed with an older flash from cd and return it to original setting of 205? i try all engine cat c15 MBN, 6NZ it same 216 fan cut on, try put fan control : on/off DC, on/off pwmfan will cut on 218, put : three fan slip fan will on 216 Mar 2, 2014 · The best way to determine what is causing the engine fan to stay on is to connect a service tool like Cat ET software and monitor the fan and all of the switches that are connected to it. ex wp dj sy wp eq bq pi vg mi