Spn 5743 fmi 9.

Nov 3, 2018 · Fault Code: 2636. PID (P), SID (S): S027. SPN: 641. FMI: 9/9. Lamp: Red. REASON: VGT Actuator Driver Circuit - Abnormal Update Rate. No communications on the J1939. data link between the engine ECM and the smart VGT controller. EFFECT: The VGT will move to the default open position.

2016 Cascadia isx spn 641 fmi 11 fmi 9 spn 5743 fmi 9. 2016. 2016 Cascadia isx spn 641 fmi 11 fmi 9 spn 5743 fmi 9 ....

I have a 2018 cascadia and it's throwing a code right now once's radar one active fault the other one you click on it it says sa 180 and then click on that it's a diagnostic code SPN 5681 FMI 9. Then you click on the other fault code which it says radar and that comes up SPN 5023 FMI 9 .and it says radar.its the on guard crash mitigation system.Field service technician. Vocational, Technical or Tra... 1,338 satisfied customers. I have a 2014 Prostar international throwing a SPN2011 fmi 9. I have a 2014 Prostar international throwing a SPN2011 fmi 9 -1 and SPN 2011 fmi 9 -2. Also a SPN2023 fmi 3-1.2016 Volvo mil light on dash shows codes son 558 fmi 9 ,spn91 fmi 9, spn 3362 fmi31. engine isx 15. 2016 Volvo isx 15 - Answered by a verified Technician We use cookies to give you the best possible experience on our website.The FMI may also indicate that an abnormal operating condition has been detected. The codes are displayed in the form “SPN – FMI”. The ECM / ECU also attaches a text description to the message that is transmitted over the J1939 data link. This text description is used to describe the SPN – FMI. The failure mode of the DTC is determined ...

2014 peterbilt 337 6.7 l 408 cid l6 paccar px-7 diesel 268189 milesoriginal customer complaint: limp mode wont go over 40mph.what has been done: found check engine light on found the following active codes:spn 641 fmi 9 - engine variable geometry turbocharger spn 6713 fmi 9 - undefined spn 1569 fmi 31 - engine protection torque derate spn 3216 fmi 9 - aft 1 intake nox spn 3226 fmi 9 - aft 1 ...I have a 2013 Peterbilt 320 and I am coming up with aftertreatment outlet NOx sensor - abnormal uprate. no communications or invalid data transfer rate detected on the J1939 data link between ECM and the aftertreatment outlet NOx sensor SPN 3226 Fmi 9 Cnt 12014 peterbilt 337 6.7 l 408 cid l6 paccar px-7 diesel 268189 milesoriginal customer complaint: limp mode wont go over 40mph.what has been done: found check engine light on found the following active codes:spn 641 fmi 9 - engine variable geometry turbocharger spn 6713 fmi 9 - undefined spn 1569 fmi 31 - engine protection torque derate spn 3216 fmi …

cummins isx spn 5743 fmi 9 - FixyaDo you service Cummins engines? The Cummins Fault Code Advisor helps you gather and manage public J1939 fault code information for Cummins engines. It can also read public fault codes for other non-Cummins modules on almost any equipment with a J1939 datalink. Features

I have a Peterbilt 2016 with Cummins ISX 15 engine. Now showing code SPN 641, no FMI details. This code is out of nowhere just after turning … read more. Nich1019. Diesel Technician. Vocational, Technical or Tra... 161 satisfied customers. 2016 Cascadia isx spn 641 fmi 11 fmi 9 spn 5743 fmi 9. 2016. 2016 Cascadia isx spn 641 fmi 11 fmi 9 spn ...Jun 9, 2021 · TxId: 11 SPN: 794 – Wheel Sensor ABS Axle 3 Right FMI: 7 (Not Responding Properly) Contar: 1 TxId: 0 SPN: 1569 – Engine Protection Torque Derate FMI: 31 Contar: 9 TxId: 0 SPN: 5246 – Aftertreatment SC … Getting fault codes on 2017 kalmar ottowa t2 Spn 3216 fmi 9 Spn 3226 fmi 9 Spn 5743 fmi 9 Spn 6882 fmi 9 Spn 1761 fmi 9 Spn 3031 fmi 9 Spn 3364 fmi 9 Spn 1569 fmi 31 Spn 5246 fmi 0 … read more cumminsdrWayne. Journeyman. Vocational, Technical or Tra... 5,816 satisfied customers. 2012 Freightliner Cascadia 125 DD15, recent items, replaced. 2012 Freightliner Cascadia 125 DD15, recent items, replaced metering unit, did 2 regens, new set of codes (didn't record) brought to local dealer for … read more.Nov 3, 2018 · Fault Code: 2636. PID (P), SID (S): S027. SPN: 641. FMI: 9/9. Lamp: Red. REASON: VGT Actuator Driver Circuit - Abnormal Update Rate. No communications on the J1939. data link between the engine ECM and the smart VGT controller. EFFECT: The VGT will move to the default open position.


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Fault Code: 4151 | SPN: 5742 | FMI: 9 Aftertreatment Diesel Particulate Filter Temperature Sensor Module - Abnormal Update Rate 1 Check for primary fault codes 2 …

b. No; Go to step 9. 9. Measure the resistance between pin 4 of the soot sensor connector harness side and ground. Is the resistance greater than 10K ohms? a. Yes; repair the short to ground between pin 4 of the soot sensor connector and pin 61 of the ACM 120-pin connector. b. No; Go to step 10. 10. Turn the ignition ON (key ON, engine OFF). 11..

I have code cummins isx spn 5743 fmi 9. Wiring, schematic, electrical diagrams, torq setting, error/fault codes, ... Have a sullair 375 getting code spn 970 fmi 31 ext aux eng shutdown switch active and spn 1569 fmi 31. Cars & Trucks; Open Questions: 0 answers. 2014 chevy spark 1.2 firing order diagram. Read full answer. Be the first to …229 Total Fuel Used (Gaseous) (duplicate, use SPN 1040) 230 Total Idle Fuel Used (Gaseous) (duplicate, use SPN 1010) 231 Trip Fuel (Gaseous) (duplicate, use SPN 1039) 232 DGPS Differential Correction 233 Unit Number (Power Unit) 234 Software Identification 235 Engine Total Idle Hours 236 Engine Total Idle Fuel Used 237 Vehicle Identification NumberFault 1: -Eng 0 -641 spn -Fail 11. Fault 2: - ... Cascadia with cummins isx ' TruckersReport.com ... 10 posts Mar. 15, 2015 Isx in derate mode showing codes Engine 0 Fail 31 ... 8 posts Sep. 3, 2018 2009 Cummins ISX problems ... i have code cummins isx spn 5743 fmi 9. Wiring, schematic, electrical diagrams, torq setting, ...Fault Code J1939 SPN J1939 FMI Lamp J1939 SPN Description Cummins Description QSB 6.7 QSL 9 QSX 15 QSB 4.5 QSF 3.8 QSG12 111 629 12 Red Controller #1 Engine Control Module Critical Internal Failure - Bad intelligent device or component XXXXXX 115 612 2 Red System Diagnostic Code #2 Engine Magnetic Speed/Position Lost Both of Two PACCAR PX-9 CM2350 (2013-17) Fault Code:3634 PID: SPN:5484 FMI:4 Engine Fan Clutch 2 Control Circuit – Voltage Below Normal or Shorted to Low Source DTC TRUCKS Rated 0 out of 5. Allison 1000 & 2000 Gen 4 Fault Codes: U1300 J1850 (Class 2) Serial Data Communication Link LowSPN 3216 FMI 19NOxIN not detected on J1939 SPN 3226 FMI 19NOxOUT not detected on J1939 SPN 4377 FMI 19NH3 Sensor Module not detected on J1939 SPN 5742 FMI 19DOC/DPF Temperature module not detect J1939 SPN 5743 FMI 19SCR Temperature module not detect J1939 SPN 94 FMI 1 Fuel Delivery Pressure below Critical SPN 651 FMI 14Injector 1 Fuel quantity ...

I have a Peterbilt 2016 with Cummins ISX 15 engine. Now showing code SPN 641, no FMI details. This code is out of nowhere just after turning … read more. Nich1019. Diesel Technician. Vocational, Technical or Tra... 161 satisfied customers. 2016 Cascadia isx spn 641 fmi 11 fmi 9 spn 5743 fmi 9. 2016. 2016 Cascadia isx spn 641 fmi 11 fmi 9 spn ...... SPN 5743- SCR temp sensor module Recieved network data in error, i was thinking maybe it's a wiring harness that's smushed and getting bad ...Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4152 PID: SPN: 5743 FMI: 9 Aftertreatment Selective Catalytic Reduction Temperature Sensor Module- Abnormal Update Rate Circuit Description The aftertreatment SCR (selective catalytic reduction) temperature sensor module is a smart device that communicates with the engine control module via …Getting fault codes on 2017 kalmar ottowa t2 Spn 3216 fmi 9 Spn 3226 fmi 9 Spn 5743 fmi 9 Spn 6882 fmi 9 Spn 1761 fmi 9 Spn 3031 fmi 9 Spn 3364 fmi 9 Spn 1569 fmi 31 Spn 5246 fmi 0 … read more cumminsdrI have a 2016 Freightliner cascadia. Isx12 engine. 2 codes : SPN 191 fmi 9 and SPN 84 fmi 9The dash cluster does not read the shifter. The truck is not showing neutral nor does it change when I put it … read moreFMI represents the nature and type of error that occurred, e.g., value range violation (high or low), sensor short-circuits, incorrect update rate, calibration error. The FMI may also indicate that an abnormal operating condition has been detected. The codes are displayed in the form ' SPN - FMI '. SOLVED: I have code cummins isx spn 5743 fmi 9 - Fixya I have code cummins isx spn 5743 fmi 9 - Cars & Trucks. Posted by Armando Nunez on Dec 01, 2018. Want Answer 1. Clicking this will make more experts see the question and we will remind you

Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 4152 PID: SPN: 5743 FMI: 9 Aftertreatment Selective Catalytic Reduction Temperature Sensor Module- Abnormal Update Rate. Circuit Description The aftertreatment SCR (selective catalytic reduction) temperature sensor module is a smart device that communicates with the engine control module via ...spn 1569 relates engine protection torque derate -condition exists. critical fault codes related to engine operation are active. code 1 means urgent attention. A sort of limp mode setting that requires immediate attention by a cummins service center to prevent further damage to the engine.

220 satisfied customers. 2016 Freightliner Cascadia. code is on TxId: 1 SPN: 3464 –. 2016 Freightliner Cascadia. code is onTxId: 1 SPN: 3464 – Engine Throttle Actuator 1 Control Command FMI: 16 (High—moderate … read more.I have code cummins isx spn 5743 fmi 9. Wiring, schematic, electrical ... -lbs Oil pump bolt 25 ft-lbs. Cam bolts 40-45 ft-lbs. Cam thrust plate bolts 9-12 ft-lbs. Harmonic damper bolt 70-90 ft-lbs. Flywheel / flex-plate bolts 75-85 ft-lbs. Pressure plate bolts 35 ft-lbs. Front cover bolts 12-18 ft-lbs ...I have code cummins isx spn 5743 fmi 9 Posted by Armando Nunez on Dec 01, 2018 1 Answer Jose Nixon Cars & Trucks Master 1,621 Answers5743: 9: Amber: Aftertreatment Selective CatalyticReduction Temperature Sensor Module: Aftertreatment Selective Catalytic ReductionTemperature Sensor Module - Abnormal update rate: 4153: 5747: 3: Amber: Aftertreatment 1 Outlet Soot Sensor Heater: Aftertreatment 1 Outlet Soot Sensor Heater - VoltageAbove Normal, or Shorted to High Source: 4154: ...229 Total Fuel Used (Gaseous) (duplicate, use SPN 1040) 230 Total Idle Fuel Used (Gaseous) (duplicate, use SPN 1010) 231 Trip Fuel (Gaseous) (duplicate, use SPN 1039) 232 DGPS Differential Correction 233 Unit Number (Power Unit) 234 Software Identification 235 Engine Total Idle Hours 236 Engine Total Idle Fuel Used 237 Vehicle Identification NumberAre fault codes SPN 3246/FMI 0, FMI 15, SPN 3250/FMI 0 or FMI 15 also present? a. Yes; diagnose the other fault codes first. b. No; Go to step 5. 5. Disconnect and inspect the SCR outlet temperature sensor electrical connector, harness side. Refer to section "EPA10/ GHG14 Aftertreatment Device Sensor Locations". Are there any spread pins, damaged …Service engine code SPN 5743 FMI 9. Got a engine light over the weekend, thanks to Spartan problem resolved. The code was SPN 5743 and SPN 5742. The issue was that the sensors for the before and …SPN 3490-FMI 7 Inactive: Undefined SPN 5742- FMI 16- inactive EGR SPN3058 FMI-16- inactive Just had a yard mechanic replace the DEF filter, maybe he didn't install it correctly? These guys on the road keep calling it a turbo problem. I appreciate any help.


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May 25, 2019 · SPN: 5743 FMI: 9/9 Lamp: Amber SRT: No communication on the J1939 data link between the ECM and the aftertreatment SCR temperature sensor module. Possible reduced engine performance. Aftertreatment SCR Temperature Sensor Module Circuit Circuit Description: The aftertreatment SCR (selective catalytic reduction) temperature sensor module is a ...

I have a Peterbilt 2016 with Cummins ISX 15 engine. Now showing code SPN 641, no FMI details. This code is out of nowhere just after turning … read more. Nich1019. Diesel Technician. Vocational, Technical or Tra... 161 satisfied customers. 2016 Cascadia isx spn 641 fmi 11 fmi 9 spn 5743 fmi 9. 2016. 2016 Cascadia isx spn 641 fmi 11 fmi 9 spn ...The dash had a CEL and red stop engine light, code read Eng 0, SPN 502 3, Fail 9. I cycled the ignition and restarted with no codes and runs fine. I’m grateful for that, however, I don’t like mysteries, if this is a failing part I prefer to replace it now rather later. Hoping you guys can educate me on this code. 9Ether, Feb 12, 2020.I have code cummins isx spn 5743 fmi 9. Wiring, schematic, electrical diagrams, torq setting, error/fault codes, ... Have a sullair 375 getting code spn 970 fmi 31 ext aux eng shutdown switch active and spn 1569 fmi 31. Cars & Trucks; Open Questions: 0 answers. I have a 2004 H2 Hummer and the Sun Roof track on left side appears to have …Fault Code: 3232 PID: SPN: 3216 FMI: 9 LAMP: Amber SRT: Aftertreatment Intake NOx Sensor - Abnormal Update Rate. No communication or an invalid data transfer rate has been detected on the J1939 data link between the ECM and the aftertreatment intake NOx sensor.Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4152 PID: SPN: 5743 FMI: 9 Aftertreatment Selective Catalytic Reduction Temperature Sensor Module- Abnormal Update Rate. Circuit Description The aftertreatment SCR (selective catalytic reduction) temperature sensor module is a smart device that communicates with the engine control module via ...Jun 9, 2021 · TxId: 11 SPN: 794 – Wheel Sensor ABS Axle 3 Right FMI: 7 (Not Responding Properly) Contar: 1 TxId: 0 SPN: 1569 – Engine Protection Torque Derate FMI: 31 Contar: 9 TxId: 0 SPN: 5246 – Aftertreatment SC … I have code cummins isx spn 5743 fmi 9. Wiring, schematic, electrical diagrams, torq setting, error/fault codes, ... Have a sullair 375 getting code spn 970 fmi 31 ext aux eng shutdown switch active and spn 1569 fmi 31. Cars & Trucks; Open Questions: 0 answers. I have a 2004 H2 Hummer and the Sun Roof track on left side appears to have …SOLVED: I have code cummins isx spn 5743 fmi 9 - Fixya How To Check Fault Code On A Cummins ISX Engine Cummins Engine Isx Spn Fault SPN 3509 - FMI 4 (Fault Code 352) - Blog-Teknisi Cummins Codes - Fault codes by engine model. ... code spn 5018 fmi 11 and - FixyaA quick How To for when you are out on the road and need to know how to check …Cummins ISB6.7 CM2350 (2013-17) Fault Code: 4165 PID: SPN: 5743 FMI: 4 Aftertreatment Selective Catalytic Reduction Temperature Sensor Module - Voltage below normal, or shorted to low source. Low battery supply voltage detected at the aftertreatment SCR temperature sensor module. Circuit DescriptionMar 8, 2015 · Aftertreatment SCR Intermediate NH3 - Data erratic, intermittent or incorrect. The aftertreatment SCR intermediate NH3 sensor reading is stuck. SPN 5848. Aftertreatment 1SCR Intermediate NH3. FMI 2 Data Erratic, Intermittent, or Incorrect. Fault 4281. FMI 9 Abnormal update rate- sensor. Fault 3911. FMI 20 Drifted high- data not rational. 3031 9 4572 AmberAftertreatment 1 Diesel Exhaust Fluid Tank Temperature - Abnormal Update Rate. REPAIR PROCEDURE **IMPORTANT**IMPORTANT**IMPORTANT** For vehicles built before September 23, 2013: 1.Locate connector 1027 - ECM Battery Feed on the J-Tray Starter Bracket, as shown in Figure 1 below 2.Disconnect connector 1027

SPN 3216 FMI 19NOxIN not detected on J1939 SPN 3226 FMI 19NOxOUT not detected on J1939 SPN 4377 FMI 19NH3 Sensor Module not detected on J1939 SPN 5742 FMI 19DOC/DPF Temperature module not detect J1939 SPN 5743 FMI 19SCR Temperature module not detect J1939 SPN 94 FMI 1 Fuel Delivery Pressure below Critical SPN 651 FMI 14Injector 1 Fuel quantity ... For a DD engine The sensor is located on the 1 box closest to the front tire, It is fairly easy to get to if you remove the side cover, It takes a 7/8 sensor socket most of the times a wrench will take it off and you can cut the lead off at the sensor to use the box end if needed. the sensor module is just below the pressure sensor to metric cap screws and 1 plug.Last Modified: 09-May-2021. File: 189-t06-4152. Page 1 of 24. ISX15 CM2350 X101. Fault Code: 4152 | SPN: 5743 | FMI: 9. Aftertreatment Selective Catalytic ...2013 kenworth t300 cuminsAbs light on. Fault code. Spn 1481 fmi 9Check engine onFault code. 3582 active. 3497 inactive. Answered in 5 minutes by: Technician: Nich1019. Nich1019, Cummins/Caterpillar Technician. quest diagnostics lapeer appointment This code is generated by the ECM, and the fault in question is labeled as 2003, which is located in the TCM. In simple terms, the connection link between the ECM and TCM has been lost and the harness between them is damaged. Even if the harness is intact, remove it and then to reseat it just to be sure. Feb 19, 2019 • Cars & Trucks.Aug 24, 2021 · 2014 peterbilt 337 6.7 l 408 cid l6 paccar px-7 diesel 268189 milesoriginal customer complaint: limp mode wont go over 40mph.what has been done: found check engine light on found the following active codes:spn 641 fmi 9 - engine variable geometry turbocharger spn 6713 fmi 9 - undefined spn 1569 fmi 31 - engine protection torque derate spn 3216 fmi 9 - aft 1 intake nox spn 3226 fmi 9 - aft 1 ... rp 123 pink pill SPN FMI Sub-section Condition Description 27 7 EGR (page 789) EGRP does not agree with commanded position 27 10 EGR (page 789) EGRP sensor feedback ... 5743 4 SCR Temperature Sensor SCR Thermocouple Controller Out of Range LOW Module Assembly (page 1351) 5743 11 SCR Temperature Sensor SCR Thermocouple Controller signal …3031 9 4572 AmberAftertreatment 1 Diesel Exhaust Fluid Tank Temperature - Abnormal Update Rate. REPAIR PROCEDURE **IMPORTANT**IMPORTANT**IMPORTANT** For vehicles built before September 23, 2013: 1.Locate connector 1027 - ECM Battery Feed on the J-Tray Starter Bracket, as shown in Figure 1 below 2.Disconnect connector 1027 did jeffrey dahmer kill dean the neighbor BryanC0506. TRC Master Service Tech. Associate of Applied Scienc... 221 satisfied customers. Spn 3216 spn 5743 spn 5742 spn 3226 spn 1761 fmi 19 2016. Spn 3216 spn 5743 spn 5742 spn 3226 spn 1761 fmi 19 2016 international pro star n-13 engine … read more. danie riel onlyfans 2015 INTERNATIONAL 7600 HAVE A LOT OF AFTER TREATMENT CODE 3216 3226 5743 5742 1761 ALL WITH FMI 19 - Answered by a verified Technician We use cookies to give you the best possible experience on our website.Jul 22, 2019 · MIL dash indictor, with fault codes SPN 3364 FMI9 and SPN 3031 FMI 9. 2018 - Answered by a verified Technician We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. mr33 eol 2018 freightliner Cascadia with fault code spn 520213 fmi 13, when using ESC learning procedure on diagnostic link truck will not learn anything.Fault came up when truck was towed to the shop … read moreI have code cummins isx spn 5743 fmi 9. Wiring, schematic, electrical diagrams, torq setting, error/fault codes, ... spn 1569 relates engine protection torque derate -condition exists. critical fault codes related to engine operation are active code 1 means urgent attention A sort of limp mode setting that requires immediate attention by a … apple bees near by Fault Code: 4152 | SPN: 5743 | FMI: 9 Aftertreatment Selective Catalytic Reduction Temperature Sensor Module - Abnormal Update Rate 1 Check for primary fault codes 2 Low battery voltage 2.1Battery load test 2.2Fuse/distribution panel check 2.3Ground inspection 3 Fault Code 4152 triggered by a malfunction in the J1939 data link with multiple OEM ...TxId: 11 SPN: 794 – Wheel Sensor ABS Axle 3 Right FMI: 7 (Not Responding Properly) Contar: 1 TxId: 0 SPN: 1569 – Engine Protection Torque Derate FMI: 31 Contar: 9 TxId: 0 SPN: 5246 – Aftertreatment SC … 2 tower chimps Series 60 – SPN 641/FMI 9 – SMART REMOTE ACTUATOR 5 (VGT) ABNORMAL OPERATION. This code typically means the Smart Remote Actuator 5 is in Failsafe Mode, Motor Off. 57.3.1 Actuator Check Check as follows: 1. …TxId: 11 SPN: 794 – Wheel Sensor ABS Axle 3 Right FMI: 7 (Not Responding Properly) Contar: 1 TxId: 0 SPN: 1569 – Engine Protection Torque Derate FMI: 31 Contar: 9 TxId: 0 SPN: 5246 – Aftertreatment SC …The technician will be able to see what outputs are programmed for that fault. I would try to retrieve your actual ABS fault code as well at the same time. ABS will start with 136 where engine related faults will be 128 for the engine control module. I hope you find this information helpful. nearest joann fabrics to my location Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4152 PID: SPN: 5743 FMI: 9 Aftertreatment Selective Catalytic Reduction Temperature Sensor Module- Abnormal …FMI represents the nature and type of error that occurred, e.g., value range violation (high or low), sensor short-circuits, incorrect update rate, calibration error. The FMI may also indicate that an abnormal operating condition has been detected. The codes are displayed in the form ' SPN - FMI '. oahe sunset lodging and steakhouse TxId: 0 SPN: 641 – Engine Variable Geometry Turbocharger Actuator #1 FMI: 9 (Abnormal Update … read more. Nich1019. Diesel Technician. I have a 2015 Durastar box truck with Cummins engine; on. I have a 2015 Durastar box truck with Cummins engine; on ELD, it's giving fault SPN-641 FMI 9 Engine Variable Geometry Turbocharger … read more.Fault Code: 3232 PID: SPN: 3216 FMI: 9 LAMP: Amber SRT: Aftertreatment Intake NOx Sensor - Abnormal Update Rate. No communication or an invalid data transfer rate has been detected on the J1939 data link between the ECM and the aftertreatment intake NOx sensor. rodem slime Dec 25, 2021. #1. Fault Code Description: Aftertreatment Diesel Exhaust Particulate Filter Temperature sensor module voltage above normal or shorted. Check your inlet and outlet sensors. Check if they are running within manufactured specs and or are not damaged or loose. if over 500k on them it may be time to swap them out. craigslist auburndale PACCAR PX-9 CM2350 (2013-17) Fault Code:3634 PID: SPN:5484 FMI:4 Engine Fan Clutch 2 Control Circuit – Voltage Below Normal or Shorted to Low Source DTC TRUCKS Rated 0 out of 5. Allison 1000 & 2000 Gen 4 Fault Codes: U1300 J1850 (Class 2) Serial Data Communication Link Lowswitch. Then use the FMI hierarchy to select which code to diagnose first. Remember, if there are multiple codes on the same FMI level, start with the one closest to the top of the DTC list. Is the DTC list free of the fault codes listed in step 1 of the diagnostic procedure for fault code SPN 1761 FMI 18? IfI got few alerts. Freightliner, Cascadia 2023. 67000. I got SPN-97, SPN-520355, SPN-3216, SPN-521063 fault codes - Answered by a verified Technician