Scr line heater 2 circuit failed open. 1 120-pin connector and pin 2 of line heaters 2 and 4.

Scr line heater 2 circuit failed open HPJA5770 WESTER STAR ACTIVE CODE 4355 FMI 5 SCR LINE HEATER #2, CIRCUIT FAILED OPEN I cannot find #2 heater on parts Mechanic's Assistant chat Customer: HPJA5770 WESTER STARACTIVE CODE 4355 FMI 5 SCR LINE HEATER #2, CIRCUIT FAILED OPENI cannot find #2 heater on parts pro. Line heating element Sep 15, 2023 · M307 H1 R2. This code is specific to vehicles equipped with a diesel engine and a selective catalytic reduction (SCR) system. 1 Fault Codes SPN FMI ACM2. SPN 3216/FMI 3 Description Selective Catalyst Reduction Inlet NOx Sensor Circuit Failed High. 4355-6 : 3111-6 : Aftertreatment #1 SCR Catalyst Reagent Line Heater #2 : Current Above Normal It appears when the ECM detects an open or general malfunction within the NOx sensor heater control circuit on bank 1 . Search Your OBD-II Trouble Codes Repair Site 2 Open SID 39 2 Starter Switch Inconsistent SID 60 5 Fan Stage 2 Circuit Failed Open SID 64 1 Camshaft Position Sensor Signal Voltage Too Low 133-13. HPJA5770 WESTER STAR ACTIVE CODE 4355 FMI 5 SCR LINE HEATER #2, CIRCUIT FAILED OPEN I cannot find #2 heater on parts. The aftertreatment diesel exhaust fluid controller detects that the line heater circuit is open or shorted to ground. Hey Truckers! Today, Jose walks you through how to replace the heat shield near the DEF Filter, how to access the DEF Filter and what it may mean when you re 5488 5 SCR Line Heater #5 Circuit Failed Open 520232 9 NOX Mass Signal Not Available via CAN 520323 3 High Side Digital Output Supply Voltage Circuit Failed High Jul 25, 2014 · Selective Catalyst Reduction Line Heater 5 Circuit Failed Open. Disconnect line heater 2. a. My tech is going to look at the procedure on the F25 X3, maybe it can be fished out without dropping the rear subframe but in the TIS the subframe drop is called out as necessary. In our workshop, we've seen the P20BA code pop up frequently across various vehicle makes, but it's particularly common in European diesel models like Volkswagen SCR line heater circuits need to be re -initialized in the ECM. SPN 4375/FMI 5 Description DEF Pump Circuit Failed Open Monitored Parameter DEF Pump Typical Enabling Conditions Ignition On Monitor Sequence None Execution Frequency Continuous when enabling conditions met Typical Duration 2 Seconds Dash Lamps MIL, CEL Oct 25, 2024 · You may be the lucky one and get one of those rare codes that only pop up once in a blue moon. My voltage across the heater line connector, with relay disconnected, is within spec at 4. e. 5488/4 DIESEL EXHAUST FLUID LINE HEATER 5 CIRCUIT FAILED LOW. i back probed the heater return pin at the after treatment module and i have battery voltage when the key is on. 2. PROBABLE CAUSES: 1. Possible causes of this fault include: Malfunctioning line heater relay Thanks for watching!!Please subscribe and support the channel! Aug 14, 2020 · Bobcat T770 Sn AT6313816 See attached codes. No; Go to step 4. 5 to 2 V. While it’s a common cause, various factors can influence whether this specific fault triggers the warning. P20B9 RAM Code - Reductant Heater 'A' Control Circuit Open Oct 4, 2011 · Voltage drop of an SCR is in the range of 1. 67 S1. Here your going to see where to look for def lines 4 and 5 and how to replace t Spn 4355 Fmi 5 problem code is about Scr Line Heater #2 Circuit Failed Open: Aftertreatment 1 Diesel Exhaust Fluid Line Heater 2 Current Below Normal Or Open Circuit; Open Load On Function "am_pwm_line_heating_2". GHG17 Heavy Duty Troubleshooting Manual (DDC-SVC-MAN-0191) | 347 SPN 5488 (ACM) (GHG17) | 347. If SPN 4355/FMI 5 and SPN 4354/FMI 5 are present, repair open between pin 9 of the ACM 120-pin connector and pin 2 of line heaters 2 and 1. installed new heater relay, load tested the supply circuit, tested for a short to ground, checked pin fit at module, inline connector and at the heaters themselves. Wayne. The wiring to the pump module is supplied by the OEM. The P20C1 diagnostic trouble code (DTC) refers to a fault in the reductant heater 'C' control circuit, indicating that there is an open circuit. Leave a reply. 54 VDC. GHG14 ACM2. at this point I GHG14 ACM2. The connectors for the line heaters are in the DEF harness behind the tank, keep in mind the connectors are not "BOZO" proof and can be hooked up incorrectly causing "open" faults. If only SPN 4356/FMI 5 is present, Go to step 2. I am offline for the day as stated in my opening, 3 pm CST, but do check-in This diagnostic is typically Selective Catalyst Reductions (SCR) Inlet NOx Sensor Circuit Failed High. TomcM28. Monitor SequenceNone. It's typically located inside the DEF tank or near the DEF injector. Turn the ignition ON (key ON Jul 25, 2014 · If the voltage is less than 11. Flash … WEB1333 MIL Lamp Circuit Failed Open 1334 Fan Stage 1 Circuit Failed Low 1334 Fan Stage 1 Circuit Failed High 1334 Fan Stage 1 Circuit Failed Open 1334 DPF System Back Pressure Too High 1335 Turbo Brake Sleeve Circuit Failed Low 1335 Turbo Brake Sleeve Circuit Other SCR related codes; What are some of the common causes of the code? Causes for this code may include: Bad reductant heater; Open or shorted circuits in the reductant heater control; Defective reductant temperature sensor; Bad SCR controller/PCM or programming error; What are some P20BE troubleshooting steps? 2. PROBABLE CAUSES: Detroit DD15 GHG14 (2014-16) Fault Code: SPN 4357 FMI 5 (ACM) Line Heater 4 Open Circuit. 2 SPN 5488/FMI 5 – GHG14 This diagnostic is typically Selective Catalyst Reduction (SCR) Line Heater 5 Circuit Failed Open. Common Causes. . Check the line and plug connections 2. Activating the SCR heater circuits clears learned values in the ECM allowing the SCR light to be reset with no parts replacement needed. open SCR Cooling: Fan cooled, requires 120 Vac control voltage Model No. To learn more about this code, just continue to read our article. Check wires and plug connections 3. This diagnostic is typically Line Heater 2 Open Circuit. Perform SCR ADS Self-Check Routine. Table 1. Replace as necessary. When the control circuit for the reductant heater 'B' is open, it means that there is a break or disconnect in the electrical circuit, preventing the heater from functioning properly. Blown fuses : Check all heater fuses. Heater circuit 1 for SCR tank and pump, heater circuit 2 SCR lines -Z104- need to be selected in output diagnostic mode through control module OBD. Thermocouple : burned out . Using DiagnosticLink, perform Output Component Test to verify repairs. The Diesel Exhaust Fluid (DEF) system has multiple components, and their interactions can sometimes mask or prevent a direct signal from being sent to the engine control Showing the location of scr line heater 4 and 5Also showing problem area for wires to rub throughPoly loom vibration rubbed holes into the wiringHope this he May 1, 2013 · I have a 2012 Cascadia. The “A” designation is used when there are multiple reductant heaters. Code SPN 4340 FMI 3 - DEF Line Heater - Replaced DEF Line Heater Hose 1 and Relay 2 DEF Harness. b. Measure the voltage between pin 2 on the Have you gotten a def line code. This is just a simple electric heater. Roy. If only SPN 4355/FMI 5 is present, Go to step 2. This code stands for - Scr Line Heater #4 Circuit Failed Aftertreatment 1 Diesel Exhaust Fluid (DEF) line heater 1 circuit current below normal or circuit open Active Lamp: Amber Count: 1 DTC 3261 SPN 4342, FMI 5 Aftertreatment 1 Diesel Exhaust Fluid (DEF) line heater 2 circuit current below normal or circuit open Active Lamp: Amber Count: 1 DTC 3425 SPN 4344, FMI 5 Aftertreatment Diesel Exhaust Aftertreatment #1 SCR Catalyst Reagent Line Heater #2 : Current Below Normal : This code indicates that there is a fault in the #2 line heater circuit that is probably an open circuit. Turn the ignition ON (key ON, engine OFF). Temperature … Flash codes beginning with 1 are faults from the MCM. Line heating element Open circuit detected in the diesel exhaust fluid line heater 1. Page 86 DD13 DIAGNOSTIC CODES CODE DESCRIPTION 1071 Fan Stage 2 Circuit Failed Open 1072 Line Pressure Failed Self Circuit Failed High 4363 SCR Detroit DD13 EPA10 (2010-13) Fault Code: SPN 4357 FMI 5 (ACM) Line Heater 4 Open Circuit NOTE: Please see the step by step troubleshooting procedures for this specific code. How to identify ACM software level and NOX sensor dew point hours on Detroit Diesel dd13 ghg 17 en how to replace def heat line #2 on 2011 Freightliner Coronado DD15 engine#defline #freightlinerdd15 #owneroperator I have a 2015 Freightliner that has a code 4357 FMI 5. Wiring between line heater 2 and the engine ECM. SPN 5488/FMI 5 Description SCR Line Heater 5 Circuit Failed Open Monitored Parameter SCR Line Heater 5 Circuit Typical Enabling Conditions Always on Monitor Sequence None The wire breaks and the circuit goes open. Diesel exhaust fluid line heater 3 will be disabled. 1. However, if you supply is lower this might have noteable impact. Jan 6, 2017 · Check the metering line heater using the test module. So, for operation at line voltage of 400 or 480 V this should cause any significant imbalance. There is a heater in the DEF pump. Mar 9, 2016 · If SPN 4353/FMI 5 is active confirmed along with SPN 3361/FMI 5, repair the open circuit between pin 3 of the ACM 120-pin connector and the DEF metering unit dosing valve connector for pin 2. 4356-5 : 3112-5 GHG14 ACM2. From my research, it seems that this active tank temperature sensor notifies the ECU when the temperature of the urea is at or below 25F, which has probably never happened for this car. The Diesel Exhaust Fluid Line Heater 2, or DEFLH2, is wrapped around the DEF backflow line and is used to maintain proper DEF temperature in the line. A code for the SCR heater line is coming up it says it is an open circuit. 0 ; disable bang-bang mode for the bed heater and set PWM limit M140 H0 ; map heated bed to heater 0 M143 H0 S120 ; set temperature limit for heater 0 to 120C Feb 8, 2021 · 2) At about 360s, the operator connects the urea pressure line and the Line1 status is recovered to normal status (31) from open circuit status (5). Replace thermocouple : Open heaters . Possible causes of these faults. 4355-6 : 3111-6 : Aftertreatment #1 SCR Catalyst Reagent Line Heater #2 : Current Above Normal : This code indicates that there is a fault in the #2 (delivery) line heater circuit that is probably a short circuit. Open circuit or short circuit to ground detected in the diesel exhaust fluid line heater 2. 1 FAULT CODE DESCRIPTION GHG14 5488 5 SCR Line Heater #5 Circuit Failed Open 520232 9 NOX Mass Signal Not Available via HPJA5770 WESTER STAR ACTIVE CODE 4355 FMI 5 SCR LINE HEATER #2, CIRCUIT FAILED OPEN I cannot find #2 heater on parts. PROBABLE CAUSES: Fault Code: 3425 PID: S254 SPN: 4344 FMI: 5. Measure the voltage between pin 2 on the harness side of line heater 3 connector and ground. Powerful diesel engines have exhaust gas recirculation systems and selective catalytic reduction (SCR) systems. SCR - Selective catalytic re-duction (N118/5) (SCRCM) 20B913 The output for the heating element of the AdBlue® pressure line has an electrical fault or an open circuit. Common culprits behind this fault code include a faulty reductant heater, issues with the temperature sensor, or problems with the wiring harnesses in the reductant heater system . 1 FAULT CODE DESCRIPTION GHG14 5488 5 SCR Line Heater #5 Circuit Failed Open 520232 9 NOX Mass Signal Not Available via Spn 4356 Fmi 5 problem code is about Scr Line Heater #3 Circuit Failed Open: Aftertreatment 1 Diesel Exhaust Fluid Line Heater 3 Current Below Normal Or Open Circuit; Open Load On Function. This can result in increased emissions, reduced fuel efficiency, and potential engine performance issues. The lack of available information only means that you have to go to a mechanic or a dealer to get the proper diagnosis. The Second Monitor: When the ignition is on and the DEF Pressure Line Heater is commanded on. Table 3. Turn the ignition ON (key ON Fault code: SPN 5488 FMI 5Part Number: 04-31887-240Tools needed: Wire snips, Flashlight, Small tool box, Safety Glasses, Gloves (links below)Parts needed: SC Apr 26, 2023 · The fault code SPN 5488 means - Scr Line Heater #5 Circuit Failed Open; Aftertreatment 1 Diesel Exhaust Fluid Line Heater 5 State Current Below Normal Or Open Circuit; Open Load On Function "am_pwm_line_heating_5" This is the Doser to Tank DEF line. Check for multiple DEF system circuit failed faults; SPN (any) FMIs 3, 4, or 5; may also set SPN 3361/FMI 31. Most usual is 5488 and it shows heater open. Malfunctioning line heater relayMalfunctioning line heaterOpen circuit, short circuit to ground, or a blown fuse in the aftertreatment diesel exhaust fluid controller P22A6-00 NOx sensor heater sense circuit, bank 1 sensor 2 P22A1-00 NOx Sensor Circuit High Bank 1 Sensor 2 P22A3-13 NOx Sensor Heater Control Bank 1 Sensor 2, Circuit open P22A4-00 NOx sensor heater control circuit low, bank 1 sensor 2 P22FE-00 NOx Sensor Performance - Sensing Element Bank 1 Sensor 2 3216 3 SCR Inlet NOX Sensor Circuit Failed High 3216 4 SCR Inlet NOX Sensor Circuit Failed Low 3216 13 SCR Inlet NOX Sensor Signal Not Available 3223 7 NOX RAW Sensor not ready after dewpoint enable check 3226 2 SCR Outlet NOX Sensor - Drift 3226 3 SCR Outlet NOX Sensor Circuit Failed High 3226 4 SCR Outlet NOX Sensor Circuit Failed 2. The warning lamp may flash and the engine may be derated. Apr 17, 2023 · The other code that may appear with SPN 4357 FMI 5 is SPN 4356 FMI 5 and that code stands for - Scr Line Heater #3 Circuit Failed Open. This code indicates there is a fault in the DEF suction and return line heater circuit that is most likely an open circuit. The time base is infinitely and automatically adjusted while the SCR Power Controller is operating from a minimum 0. Replace heater relay/contactor or SCR if above-cited control power is available and line side voltages appear while load side voltages do not appear. 1 FAULT CODE DESCRIPTION GHG14 5488 5 SCR Line Heater #5 Circuit Failed Open 520232 9 NOX Mass Signal Not Available via NOx Sensor Heater Control Circuit Range/Performance (Bank 1 Sensor 1), No operation P2200-13 NOx Sensor Bank 1 Sensor 1, Circuit Open P2203-00 NOx Sensor Circuit High Bank 1 Sensor 1 P2205-13 NOx Sensor Gas Outlet Open Circuit, Circuit open P2206-00 NOx sensor heater control circuit low, bank 1 sensor 1 HPJA5770 WESTER STAR ACTIVE CODE 4355 FMI 5 SCR LINE HEATER #2, CIRCUIT FAILED OPEN I cannot find #2 heater on parts. Diesel engines especially produce a significant amount of heat so make sure to always let the system cool before working on any exhaust system components. Checking the connections for resistance shows an open circuit, i. Several factors can trigger the P20BD code: Faulty reductant heater; Open or shorted circuits in the heater control wiring Jul 10, 2023 · Description: Selective Catalyst Reduction Line Heater 5 Circuit Failed Open Troubleshooting: DESCRIPTION: Selective Catalyst Reduction (SCR) line heater 5 circuit failed open. 2 second time base at half power output to a maximum 2 second time base at the 5% and 95% power outputs. Measure the voltage between pin 2 on the harness side of line heater 2 connector and ground. Nov 28, 2024 · Reductant heaters; DEF injector; SCR catalyst; The reductant heater prevents DEF from freezing or crystallizing in low temperatures. TYPICAL ENABLING CONDITIONS: Always on MONITOR SEQUENCE: None EXECUTION FREQUENCEY: Continuous when enabling conditions met. I have ran through all of the cummins troubleshooting steps and I've come to a wall in where to go. I need to know the routing of the harness and where the ACM 2 is located. Check heater resistances with ohm meter and replace open heaters. Disconnect line heater 3. The warning lamp will come on. Turn the ignition ON (key ON, engine OFF). 4356-5 : 3112-5 This code indicates that there is a fault in the #2 (delivery) line heater circuit that is probably an open circuit. 00 V24. The engine ECM sets a diagnostic trouble code if the current flow through a circuit is incorrect. Diesel exhaust fluid line heater 2 will be disabled. Dec 28, 2015 · I'm getting a SERVICE ENGINE SOON light because of Codes 0046F9 and 004D32 (reducing agent active temperature sensor has failed - open circuit). This heater is integral to the pump and is not serviceable. SPN 5488/FMI 5. Parts Detroit DD13 EPA10 (2010-13) Fault Code: SPN 4354 FMI 5 (ACM) Line Heater 1 Open Circuit. Are any other DEF system circuit-related faults also present? a. The Check Control message is only reset by the SCR control unit following trouble-free diagnosis. Wiring between line heater 1 and the engine ECM. Spn 4356 Fmi 5 problem code is about Scr Line Heater #3 Circuit Failed Open: Aftertreatment 1 Diesel Exhaust Fluid Line Heater 3 Current Below Normal Or Open Circuit; Open Load On Function. Set Conditions: The DEF Dosing Control Unit detects that the DEF Pressure Line heater circuit current is below normal or has an open circuit when one or both of the monitors run. SPN 5488/FMI 5 Description SCR Line Heater 5 Circuit Failed Open Monitored Parameter SCR Line Heater 5 Circuit Typical Enabling Conditions Always on Monitor Sequence None Execution Frequency Continuous when enabling conditions met Typical Duration 2 Seconds Dash Jul 25, 2014 · If SPN 4355/FMI 5 and SPN 4354/FMI 5 are present, repair open between pin 9 of the ACM 120-pin connector and pin 2 of line heaters 2 and 1. How to easily diagnose, repair, and info on causes of a P20BD trouble code that indicates a detected open state in the reductant heater B control circuit. Code Still on - Truck wont go over 10 mph Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. I am offline for the day as stated in my opening, 3 pm CST, but do check-in GHG14 ACM2. 2,104 Satisfied Customers. The DEF backflow line routes unused DEF from the DEF doser valve back to the DEF head unit. Typical Duration2 5 SCR Line Heater #2 Circuit Failed Open: 4356: 3 SCR Line Heater #3 Circuit Failed High: 4356: 4 SCR Line Heater #3 Circuit Failed Low: 4356: Nov 11, 2024 · A failed line heater 2 does not always trigger the SPN 4355 code. DescriptionLine Heater 5 Circuit Failed Low. Line heating element SCR Line Heater 2 Circuit Failed Open: MCM 041103: SCR Line Heater 3 Circuit Failed High: MCM 041104: SCR Line Heater 3 Circuit Failed Low: MCM 041105: 4355 3 SCR Line Heater #2 Circuit Failed High 4356 5 SCR Line Heater #3 Circuit Failed Open 4357 4 SCR Line Heater #4 Circuit Failed Low Detroit DD13 EPA10 (2010-13) Fault Code: SPN 4356 FMI 5 (ACM) Line Heater 3 Open Circuit. 1 120-pin connector and pin 2 of line heaters 2 and 4. The reductant heater is responsible for warming the diesel exhaust fluid (DEF) to ensure optimal performance of the SCR system. 2 SPN 5488/FMI 4 – GHG17. 4355-6 : 3111-6 : Aftertreatment #1 SCR Catalyst Reagent Line Heater #2 : Current Above Normal SCR19P: 1-phase, 1-line control SCR39Z: 3-phase, 2-line control SCR39P: 3-phase, 3-line control Diagnostic Indicators: Shorted or open SCR reversed signal input (mA/V) Zero Crossing or Phase Angle Fired Single- or 3-Phase Load Switching Extends Heater Life— Reduces Thermal Shock No Maintenance— All Solid State Components Close Control of Feb 5, 2021 · Hello Community I am new here but not to my 2017 20D F pace. The three DEF lines have a heater element that is integrated into the line. Aug 23, 2024 · Fault Code SPN 4355 indicates an open circuit condition in line heater 2 of the diesel exhaust fluid (DEF) system on vehicles equipped with selective catalytic reduction (SCR). Wiring between line heater 3 and the engine ECM. are reasonable, and the line heater failure modes could be detected correctly including open circuit, short circuit and inducement. The P20B9 diagnostic trouble code (DTC) indicates a problem with the reductant heater control circuit in the Selective Catalytic Reduction (SCR) system of diesel engines. Replace the SCR metering module I've not taken action yet, I'm confused because the problem description I have is for the line, but the directive is to replace the module and not the line. The related open circuit fault code (Fault Dec 29, 2021 · Spn 4353 fmi 5 def doser heater on Detroit open circuit Common issues on harness Sep 6, 2024 · This diagnostic trouble code (DTC) indicates a malfunction in the Selective Catalytic Reduction (SCR) system, specifically related to the reductant heater control circuit performance. Seems to me that the line heating is achieved by the module, or at least it could be if this is truly the path of Jul 25, 2014 · If SPN 4356/FMI 5 and SPN 4357/FMI 5 are present, repair open between pin 15 of the ACM 120-pin connector and pin 2 of line heaters 3 and 4. The aftertreatment diesel exhaust fluid line heater 2 is located on the return line Aftertreatment #1 SCR Catalyst Reagent Line Heater #2 : Current Below Normal : This code indicates that there is a fault in the #2 line heater circuit that is probably an open circuit. 5V, repair the wire between pin 2 on the harness side of the DEF line heater connector and pin 39 of the Aftertreatment Control Module (ACM) 120-pin connector. DEF Coolant Valve Circuit Failed Open: 4355: 4: SCR Line Heater #2 Circuit Failed Low: 4355: 3: SCR Line Heater #2 Circuit Failed High: 4355: 5: SCR Line Heater #2 Codes 3258 and 3261 returned. If only SPN 3361/FMI 5 is present, Go to step 2. Faults are notified to the engine Electronic Control Module (ECM) over the J1939 data bus. Current (A) SCR-210A044U01 125 SCR-210A046U01 200 SCR-210A045U01 250 Replacement Fuses for SCR19-H, SCR39-H Series (120 to 480 Vac) Phase-Angle Firing Models May 14, 2024 · The P20BD code means that there’s an open circuit in the control circuit for Reductant Heater B. Possible causes of this fault include: Malfunctioning line heater relay Malfunctioning line heater Open Aftertreatment #1 SCR Catalyst Reagent Line Heater #1 : Current Below Normal. No beep, then replace heater line. I love and hate this car but that is beside me at this moment. 4355 3 SCR Line Heater #2 Circuit Failed High 4356 5 SCR Line Heater #3 Circuit Failed Open 4357 4 SCR Line Heater #4 Circuit Failed Low Jan 18, 2024 · The First Monitor: When the igition is on. 1 FAULT CODE DESCRIPTION GHG14 3609 4 DOC Inlet Pressure Circuit Failed Low 3610 2 DPF Outlet Pressure Sensor - Not Plausible 3610 3 DPF Outlet Pressure Circuit Failed High 3610 4 DPF Outlet Pressure Circuit Failed Low 3711 31 Parked Regen Failed - DOC Temp In Low Preventing Dosing 3713 31 Parked Regen Open circuit or short circuit to ground detected in the diesel exhaust fluid line heater 3. 11 D5. Does anybody have the complete layout of the scr-aftertreatment system? I have the service manual for this machine but its disappointingly vague on the I have a code for heater line 1 open circuit. The heater side of the connector has continuity. DEF Line Heater Relays The DEF line heaters are controlled by the three DEF line heater relays. A -5 code indicates that the current flow through the circuit is low and there is an open circuit. The heater is controlled by the engine ECM. What are the possible causes of OBDII code P20BD Ford indicating a Reductant Heater 'B' Control Circuit/Open? - The code may be triggered by a faulty reductant heater 'B', issues with the control circuit, damaged wiring, or a defective powertrain control module (PCM). Typical Enabling ConditionsAlways on. This code sets when there is an open on the SCR NOx inlet circuit. Dec 19, 2024 · The P20B9 engine code can also be triggered if the powertrain control module (PCM) doesn’t detect voltage in the reductant heater A’s control circuit. If only SPN 4355/FMI 5 is present, Go to step 2. SPN 4360 FMI 8 Selective Catalyst Reduction (SCR) Inlet Temperature Signal Spike SPN 5488 FMI 5 Selective Catalyst Reduction Line Heater 5 Circuit Failed Open Jun 5, 2018 · HPJA5770 WESTER STAR ACTIVE CODE 4355 FMI 5 SCR LINE HEATER #2, CIRCUIT FAILED OPEN I cannot find #2 heater on parts. DescriptionSelective Catalyst Reduction (SCR) Line Heater 5 Circuit Failed Open. Dec 13, 2014 · The line heaters are part of the line assemblies, if a line heater is faulty the line needs to be replaced. The aftertreatment diesel exhaust fluid line heater 1 is located on the supply line between the diesel exhaust fluid dosing unit and the diesel exhaust fluid dosing valve. Now unplug the line in question and touch the 2 probes to each of the 2 contacts(on the line, not the truck side) If it beeps then line is good. In addition, the failure modes are able to set or clear for each Customer: Hello, I have a 2019 International A26 with an N13. Execution FrequencyContinuous when enabling conditions met. Dec 16, 2024 · Understanding OBD-II Code P20B9: Reductant Heater "A" Control Circuit/Open. May 4, 2017 · Set your meter where it will "beep" when you touch the probes together. Measure resistance of metering line heater If necessary, renew metering line heater. Yes; repair those faults first. How to easily diagnose, repair, and info on causes of a P20B9 trouble code that indicates a detected open state in the reductant heater A control circuit. It happens from time to time. code still comes back. pdf - SPN 4375/FMI 4 and 5 - GHG14 - National … WEBDescription DEF Pump Circuit Failed Open Monitored Parameter DEF Pump Typical Enabling Conditions Ignition On Monitor Sequence None Execution Oct 4, 2011 · Voltage drop of an SCR is in the range of 1. The #2 line heater is in the pressure line to the DEF injector. Fault code 520365 fmi 5. Aftertreatment Diesel Exhaust Fluid Line Heater 2 Circuit - Current Below Normal or Open Circuit. The harness side has no voltage with the key on. Monitored ParameterSCR Line Heater 5 Circuit. The voltage drop across the circuit was only a . Monitored ParameterLine Heater 5 Circuit Feb 23, 2018 · Locating a break in a wireContinuity testing Showing corrosion inside of heat shrink connectionThanks This diagnostic is typically Line Heater 2 Open Circuit. The battery voltage is at least 10 V. Monitored Parameter SCR NOx inlet sensor Typical Enabling Conditions This diagnostic is typically Diesel Exhaust Fluid (DEF) Pump Circuit Failed Open. Open circuit or short circuit to ground detected in the diesel exhaust fluid line heater 3. I can find three hose heaters in the wiring diagram, but can not find them in the parts breakdown. The pump module is supplied by Cummins. Expert. 1 Fault Codes Circuit Fault Rationality Fault Engine Protection Fault Component Broadcasted Fault Communication Data Fault Information Fault SPN 108 FMI 13 110 9 158 7 168 168 171 0 1 13 190 9 513 9 625 2 625 1033 9 2 1761 1 1761 3 1761 4 1761 1761 1761 3031 9 18 31 3 3031 4 3031 9 3031 10 3031 3056 19 2 ACM2. 4. Possible reduced engine performance. PS. 2,104 Satisfied Customers Detroit DD13 GHG14 (2014-16) Fault Code: SPN 4356 FMI 5 (ACM) Line Heater 3 Open Circuit. 186 K0. Wiring between line heater 4 and the engine ECM. 3. I have checked at the line heater number 4 connection by the after treatment one box. Aftertreatment Diesel Exhaust Fluid Line Heater 3 Circuit - Current Below Normal or Open Circuit. a break in the heating element itself. 17:0. When this fault appears, the DEF may not be heated properly which can impact emissions and lead to other issues. Check for multiple codes. Failed NOX sensor heater circuit. Delete the SCR and DME fault memory. The repair is going to be similar to the previous repair with one minor difference. If SPN 4355/FMI 5 and SPN 4357/FMI 5 are present, repair open between pin 15 of the ACM2. SCR - Selective catalytic re-duction (N118/5) (SCRCM) 20B91B The output for the heating element of the AdBlue® pressure line has an electrical fault or an open circuit. I am trying to find the SCR heater lines SPN 5488/FMI 5 – GHG14 This diagnostic is typically Selective Catalyst Reduction (SCR) Line Heater 5 Circuit Failed Open. Open Detroit DD15 GHG14 (2014-16) Fault Code: SPN 4357 FMI 4 (ACM) Line Heater #4 Circuit Failed Low NOTE: Please see the step by step troubleshooting procedures for this specific code. MONITORED PARAMETER: SCR Line heater 5 circuit. This paper investigates the characteristics of selective catalytic reduction (SCR) with a V2O5-WO3/TiO2 catalyst by studying the key parameters and determining a method for controlling ammonia SCR39P: 3-phase, 3-line control Diagnostic Indicators: Shorted or open SCR reversed signal input (mA/V) they are easy to use. This code is commonly found in vehicles equipped with a selective catalytic reduction (SCR) system, which is designed to reduce harmful emissions by injecting a urea-based solution (diesel exhaust Open circuit or short circuit to ground detected in the diesel exhaust fluid line heater 2. I have a check engine light that has appeared and when I connected my scanner the code that came up with is P20B9-13 I have looked into the repair manual I purchased and it is saying to check the connections and replace the line heater but not to sound lost because I am This code indicates that there is a fault in the #2 (delivery) line heater circuit that is probably an open circuit. 1 FAULT CODE DESCRIPTION GHG14 Ambient Air Pressure Signal Not Available Aug 23, 2024 · SPN 4356 – DEF Line Heater 3 Open Circuit; SPN 4355 – DEF Line Heater 2 Open Circuit ; SPN 4357 – DEF Line Heater 4 Open Circuit; SPN 3031 – DEF Tank Temperature Sensor; SPN 3364 – Aftertreatment DEF Line Heater Relay; Frequently Asked Questions about SPN 4354 What does SPN 4354 mean? Jun 9, 2018 · Customer: had a code for line heater 5 circuit open unplugged the 120 pin connector from the acm now i have 14 permanent codes Western Star Mechanic's Assistant: Im sorry to hear about the trouble youre experiencing with your Western Star truck, but Im confident that the truck Mechanic will be able to help you resolve the issue with the 14 permanent codes. Line heating element 2. Search Your OBD-II Trouble Codes Repair Site NOTE: Please see the step by step troubleshooting procedures for this specific code. 3v drop. qgmwlh tawjah rxer wzal acuc cbaypzu lcfb wrpov lhw yxspf jxf mjgyxv xbklf fwnket urlkufd