Spn 1231. 2015 Freightliner casscadia spn... Mad dog logistics llc posted Oct 5, 2023 at 3:01 PM. 2013 Kenworth T800 rear end hop... Bullitt posted Oct 5, 2023 at 12:24 PM. I hear a crack Mr Bob posted Oct 4, 2023 at 1:33 PM. …

Summary: Mack Chassis - Diagnostic Trouble Code ( DTC ) / Fault Code SPN 1231 FMI 9 Inactive On DTC Readout, Counts In Multiples Of Three - US10 Emissions.Reworded for clarity, added link to related CBR solution. Communication Number: K11533602, Date: 2018-01-16 Category: 110000 ELECTRICAL SYSTEM

SPN 625 (CPC)(GHG17) and SPN 625 (CPC) (EPA10;GHG14) June 2016 Additions, Revisions, or Updates Publication Number/ Title Platform Section Title Change GHG17 DD New DO5 and DO8 diagnostic DOC-SVC-MAN-0193 SPN 625/FMI 2, 4, 8, 9, 13, 14 -GHG17 Medium Duty procedures GHG17 DD Updated GHG17 HDEP diagnostichave a 2012 Peterbilt 386 cummins engine ISX 450 HP/OTQ showing fault code SPN-1231 9 J1939 Network #2 and also SPN-512 29 Driver's Demand Engine - Percent Torque Sep 16, 8:54 AM Sep 16, 10:59 AM Inte … read more

ECU 1, 1231 SPN, Fail 19 / ECU1, 625 SPN, Fail 17 / EEC 61, 639 SPN, Fail 07 / 2012 Cascadia DD15 Low Def Indicator has - Answered by a verified Technician. We use cookies to give you the best possible experience on our website.ECM SPN 1231, SAE J1939 Data Link 2 – MID 128 PSID 229 Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 2 • Data erratic, intermittent or incorrect • Circuit shorted + • Circuit shorted – • Open circuitHi Mike, My name is***** will be glad to try to help. First clean and inspect all grounds and battery to starter connections and test your batteries with a digital tester to check for dead cells or internal battery problems.Also check your alternator output to be sure it consistently puts out 1-2 volts above battery voltage.Joined: Feb 2018. spn 1231. Need help with a Paccar px-8, is throwing code spn 1231 and while driving turbo often chuffs/sneezes when under a load. I replaced turbo because selector gear was stuck and wouldnt pass the vgt acuator test, and thought this was causing the sneezing. With new turbo it has the same problem.Simple Fix: As this is a manufacturer code, SPN 520289 can be resolved at your next PM visit or with the dealer. 7. J1939 network #2: SPN 1231. Type: Electrical. SPN 1231 fault code may pop up when the Motor Control Module (MCM) stops receiving messages from the Aftertreatment Control Module (ACM) for 5 seconds.Aug 16, 2018 · I'll give you as much info as possible so sorry for the long post (note: if relevant - I have a very heavy load). First, the DEF Fuel Guage cut-out and went to zero. Then it started flicking on and off intermittently. Then I got three fault codes (SPN 1231 FMI9) and (SPN 1231 FMI2) and (SPN 5246 FMI16). Then I got an SCR System Fault Engine De ... Spn1231 fmi2 and son 4094 fmi 1. 2013 Mack mp8 truck runs buts starts acting like it’s got a miss. Checked dozer all good. Won’t let do a regin cause it won’t idle up with it cutting out.had code 2 weeks ago for turbo …SPN 3217 December 2017 Additions, Revisions, or Updates Publication Number / Title Platform Section Title Change DDC-SVC-MAN-0191 DD Platform SPN 3217/FMI 2 - (ACM) Updated the typical enabling conditions, repair verification, added "clear codes" to steps that include reprogramming the ACM. Added steps to clarify ACM and fuel map levels.

Spn1231 fmi2 and son 4094 fmi 1. 2013 Mack mp8 truck runs buts starts acting like it’s got a miss. Checked dozer all good. Won’t let do a regin cause it won’t idle up with it cutting out.had code 2 weeks ago for turbo …code sa 0 spn 3597 fmi 4 output voltage from ECM is too low. spn1127 fmi 18 is turbo charger intake manifold pressure too low. ECM SPN 1231, SAE J1939 Data Link 2 – MID 128 PSID 229. FMI 9 • Abnormal update rate • Missing signal from Aftertreatment Control Module (ACM) • MIL illuminated • Yellow Check lamp illuminatedJul 26, 2015 · SPN 1231 is CAN Bus fault (which you already know), FMI 11 is "Root Cause Unknown", no help there. I have no info on SPN 524287, FMI 31 only means "Condition Exists". Sorry I can't help, Paccar dash faults are going to be very tough to get any info on until Paccar can build a truck that can display the faults of their own engines. First clean and inspect all grounds and battery to starter connections and test your batteries with a digital tester to check for dead cells or internal battery problems.Also check your alternator output to be sure it consistently puts out 1-2 volts above battery voltage.

20 = Data Drifted High (rationality high) 21 = Data Drifted Low (rationality low) 22 to 30 = Reserved for SAE Assignment. 31 = Condition Exists. Get information about Suspect Parameter Number (SPN) and Failure Mode Identifier (FMI) fault code list and read descriptions before engine troubleshooting diy process.

See other industries within the Manufacturing sector: Aerospace Product and Parts Manufacturing , Agriculture, Construction, and Mining Machinery Manufacturing , Alumina and Aluminum Production and Processing , Animal Food Manufacturing , Animal Slaughtering and Processing , Apparel Accessories and Other Apparel Manufacturing , Apparel Knitting Mills , Architectural and Structural Metals ...

Simple Fix: As this is a manufacturer code, SPN 520289 can be resolved at your next PM visit or with the dealer. 7. J1939 network #2: SPN 1231. Type: Electrical. SPN 1231 fault code may pop up when the Motor Control Module (MCM) stops receiving messages from the Aftertreatment Control Module (ACM) for 5 seconds.ECM SPN 84: Wheel-Based Vehicle Speed – MID 128 PID 84: ECM SPN 91: Accelerator Pedal Position 1 – MID 128 PID 91: ECM SPN 94: ... ECM SPN 1231: SAE J1939 Data Link 2 – MID 128 PSID 229/232: ECM SPN 1265: Engine Piston Cooling Oil Pressure Actuator – MID 128 SID 85: ECM SPN 1322:It was running fine but now this code pops up and disappears randomly and will derate the truck to 55mph when cel is on. The code is SPN 1231 FMI 9 / Aftertreatment Control Module Message Not Received or Has Stopped Arriving. I swapped the CPC, code was still popping up. I just changed the main engine harness, code still pops up.hey . have a 2013 D13 VNL VOLVO have 3 codes SPN 1075 FMI 4 SPN 1265 FMI 4 SPN 4813 FMI 4 . I replaces Oil Thermostat valve and piston cooling valve still have the codes active and my engine fan stays …Parameters Identifiers, or PIDs, are numbers and names used to identify data being displayed. So think if PIDs in terms of “readings” such as oil temperature, coolant level, engine RPMs, and so on. PID is a J1708 term, and then SPN is a J1939 term. If you compared a list of PIDs to SPNs, you would notice two things.

2 07-06-2021, 11:32 PM. (06-29-2017, 08:18 PM)DieselDoc4422 Wrote: Hello fellow mhh members. I've got an issue with a 2008 International Prostar. Was able to pull 2 active faults. Spn 2023 FMI 11 - Gauge Cluster - Message ignition and switched ignition do not match. Root cause not known. Spn 2033 FMI 9 - Relay Driver - Loss of data link from …This spn fmi codes help explain the underlying meaning of the numerical components which build an engine fault code. - This is not a comprehensive list, or an alternative to the standard fault diagnostic process and only serves as a supplemental reference. Feb 18, 2021 · 2011 freightliner Cascadia with a ECU1 spn 1231 fmi 09. Vin ax6373 Been working on tracking down this issue but need more steps in the troubleshooting.Have cleared faults. Comes right back won't clear … Reference Figure 1. Harness shows chaffing on the branch to the 21-pin connector and Soot Sensor Harness and ACM show corrosion at the 21-pin connector Figure 1 – GHG17 1-BOXTM ATS Wire Harness These issues can cause various electrical fault codes such as: MCM fault code SPN 1231/FMI 9 - ACM Message Not Received or has Stopped Arriving 2 SPN 1483/FMI 12 - GHG17 This fault indicates the CPC3 detected the MCM is not broadcasting information on the PTCAN. Note that TCM SPN 521224 FMI 14 and ACM SPN 1231 FMI 9 may also be present when this fault is active. Check as follows: 1. Connect DiagnosticLink ® 8.0 or higher. 2. Turn the ignition ON. 3.Summary: Service Bulletin for upgrading BHM software for switch expansion module fault SPN 698 FMI 7. Communication Number: SB54-320, Date: 2019-11-20 ... Summary: 0401-18 SPN 1231 (MCM) (EPA10 GHG14) Communication Number: 0401-18, Date: 2018-04-01 Category: 110000 ELECTRICAL SYSTEM2 SPN 1483/FMI 12 - GHG17 This fault indicates the CPC3 detected the MCM is not broadcasting information on the PTCAN. Note that TCM SPN 521224 FMI 14 and ACM SPN 1231 FMI 9 may also be present when this fault is active. Check as follows: 1. Connect DiagnosticLink ® 8.0 or higher. 2. Turn the ignition ON. 3.5,816 satisfied customers. Currently in severe winter storm woke up and the truck is. Currently in severe winter storm woke up and the truck is shut down by it self. Code is SPN 1231 FMI 9 and its a 2018 Cascadia … read more.I have a 2014 freightliner cascadia and check engine light came on with diag 9, fault 1, cdu 42, fail 12, spn 51649712, ...The cod 1231 is for your ACM module not found its not coming online , the very first thing i will see is there is a inline fuse on top off batteries that provide the power to your subnet # 2 devices that is the VGT, NOX SENSOR AND THE ACMI have a 2006 International with a DT 530. It has three active codes, trying to find out what to check to fix these codes. The first is spn 2034 fmi 14, spn 1231 fmi 14, spn 611 fmi 14 9. I am trying … read moreHave a 2012 Freightliner with a dd15. Have an eng 1 1231 spn fail 9 and fault 1 code. Filled with def about 20 min ago but def gauge is blinking red like it's empty ...Mar 14, 2012. 0. Hello guys, Just picked up a truck Peterbuilt 389 with Paccar MX-13 EPA 13 Engine. Anyone ran across this code. Hardware or software fault on CAN2 bus U1011 1231 2 M1 + R1 n Comprehensive. This was pulled with DPA5 Adaptor with their built in house software.N13 2013-2014. I replaced egr valve but i have a code for spn 27 fmi 4. This - Answered by a verified Technician. We use cookies to give you the best possible experience on our website. ... Hi I'm getting SA 49 SPN 1231 FMI 9 fault code on my Pete(###) ...Oct 22, 2021 · Paccar check engine light I have a 2006 International with a DT 530. It has three active codes, trying to find out what to check to fix these codes. The first is spn 2034 fmi 14, spn 1231 fmi 14, spn 611 fmi 14 9. I am trying … read moreSPN-1231 9 J1939 Network #2 Cab Controller - Primary Oct 9, 6:26 AM Oct 9, 8:41 AM Intermittent Closed SPN-3556 5 Aftertreatment 1 Hydrocarbon Doser 1 Engine #1 Oct 8, 2:10 PM Oct 9, 8:41 AM Constant Closed SPN-65303 11 Engine #1 Oct 9, 6:16 AM Oct 9, 8:41 AM Constant Closed SPN-65302 11 Engine #1 Oct 9, 6:11 AM Oct 9, 8:41 AM Constant Closed2 07-06-2021, 11:32 PM. (06-29-2017, 08:18 PM)DieselDoc4422 Wrote: Hello fellow mhh members. I've got an issue with a 2008 International Prostar. Was able to pull 2 active faults. Spn 2023 FMI 11 - Gauge Cluster - Message ignition and switched ignition do not match. Root cause not known. Spn 2033 FMI 9 - Relay Driver - Loss of data link from …Dec 28, 2017 · 3-sa 0 spn 1231 fmi 2 And now my engine is derate I did force regen and when its finsh its ask me park regen I try to do park regen and its said condition not met for park regen so I did forced regen again with OTR tool and after finshing its again ask for park regen and after that all still i'm having these code and engine derated.

These issues can cause various electrical fault codes such as: MCM fault code SPN 1231/FMI 9 - ACM Message Not Received or has Stopped Arriving. CPC fault code SPN 625/FMI 9 - ACM PT-CAN DM1 Message Not Received or has Stopped Arriving.1231 9 MCM CAN1 Signal Missing ... SPN FMI ACM CODE DESCRIPTION 520358 3 Soot Sensor printed circuit board Temperature 2 signal range highSummary: Dealer Letter for New Cascadia vehicles with Detroit Assurance 5.0 regarding automatic headlamp and wiper retrofits. Reference service bulletin 54-324 or MCP submission, 20MC4726, CALFTL54-006. Communication Number: DLRCALFTL54-006, Date: 2020-03-18. Category: 130000 VISIBILITY.Diagnostic Trouble Codes (DTC) Group 28 Release 2 From Build Date 1.5.2014. Engine Control Module (ECM), Diagnostic Trouble Code (DTC), Guide for 2010 Emissions - Volvo Trucks. MID 130/223 DTC Guide (Volvo Transmissions)- Volvo Trucks. Electronic Control Module (ECM), Aftertreatment Control Module (ACM), Electrcial …1231. Check the fuses on the PDM under the hood on the firewall. Make sure there is the power to the fuses. The PDM is a common failure. Roy. 251.1 SPN 1231/FMI 9 - EPA10 - GHG14. Aftertreatment Control Module Message Not Received or Has Stopped Arriving. SPN 1231/FMI 9Summary: Mack Chassis - Diagnostic Trouble Code ( DTC ) / Fault Code SPN 1231 FMI 9 Inactive On DTC Readout, Counts In Multiples Of Three - US10 Emissions.Reworded for clarity, added link to related CBR solution. Communication Number: K11533602, Date: 2018-01-16 Category: 110000 ELECTRICAL SYSTEM 1231. Check the fuses on the PDM under the hood on the firewall. Make sure there is the power to the fuses. The PDM is a common failure. Roy. 251.1 SPN 1231/FMI 9 - EPA10 - GHG14. Aftertreatment Control Module Message Not Received or Has Stopped Arriving. SPN 1231/FMI 9

... SPN-1231 Fault CAN Bus 2. Your Cummins has a 5 MPH DEF Derate (SPN 5246). How can I help? Customer: I have the code spn 5246 fmi 0 JA: What's the make/model ...1231 9 MCM CAN1 Signal Missing ... SPN FMI ACM CODE DESCRIPTION 520358 3 Soot Sensor printed circuit board Temperature 2 signal range highECU 1, 1231 SPN, Fail 19 / ECU1, 625 SPN, Fail 17 / EEC 61, 639 SPN, Fail 07 / 2012 Cascadia DD15 Low Def Indicator has defrayed engine while Def tank is full. read more ExpertJan 16, 2020 · I have a code SPN-1231, the def meter shows a red blinking light and no def( there is more than a quarter tank), truck start run a little bit and then shut down. Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Truck Mechanic I'm going to connect you with knows all the tricks ... Paccar check engine light2 SPN 1231/FMI 9 - EPA10 - GHG14 Aftertreatment Control Module Message Not Received or Has Stopped Arriving Table 1. SPN 1231/FMI 9 Description This Fault Code Sets when the Motor Control Module (MCM) Stops Receiving Messages from the Aftertreatment Control Module (ACM) Monitored Parameter ACM Controller Area Network (CAN) CommunicationCommunication Number: 0305-19 SPN 2000, Date: 2019-08-07 Category: 060000 ENGINE AND ENGINE COOLING ... Summary: 0401-18 SPN 1231 (MCM) (EPA10 GHG14) Communication Number: FL756, Date: 2018-04-01 Category: 120000 EXTERIOR LIGHTING Summary: FL756 Brake Light Pressure Switches .ECM SPN 84: Wheel-Based Vehicle Speed – MID 128 PID 84: ECM SPN 91: Accelerator Pedal Position 1 – MID 128 PID 91: ECM SPN 94: ... ECM SPN 1231: SAE J1939 Data Link 2 – MID 128 PSID 229/232: ECM SPN 1265: Engine Piston Cooling Oil Pressure Actuator – MID 128 SID 85: ECM SPN 1322:2 SPN 1483/FMI 12 - GHG17 This fault indicates the CPC3 detected the MCM is not broadcasting information on the PTCAN. Note that TCM SPN 521224 FMI 14 and ACM SPN 1231 FMI 9 may also be present when this fault is active. Check as follows: 1. Connect DiagnosticLink ® 8.0 or higher. 2. Turn the ignition ON. 3.Jul 28, 2021 · ECM SPN 1231, SAE J1939 Data Link 2 – MID 128 PSID 229 Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 2 • Data erratic, intermittent or incorrect • Circuit shorted + • Circuit shorted – • Open circuit It looks like there is too many numbers for the SPN. When P4 came out. They never finished loading all the fault codes into the system. Something like this. I would use the call center. Michael Palumbo 1,620 posts since Nov 13, 2014 Re: Fault Code Information Missing. P4 CTP01T 523512/31 Feb 9, 2021 12:06 AM Might not be too many digits.ECM SPN 1231, SAE J1939 Data Link 2 – MID 128 PSID 229 Type of fault: FMI Description: Fault Condition: Possible Symptoms: Possible Cause: FMI 2 • Data erratic, intermittent or incorrect • Circuit shorted + • Circuit shorted – • Open circuitVolvo check engine light 1231 fmi 9 need help Discussion in 'Volvo Forum' started by nicksb, Oct 20, 2015. Oct 20, 2015 #1. nicksb Bobtail Member. 7 1. Sep 5, 2012 0. So recently I have been seeing a few volvos that come in to the shop and have a son 1231 fmi 9 for a missing signal. When I ohm out the grounds on the acm ground wires it shows ...Sep 21, 2021 · Okay, SPN 1231 FMI 9 is for loss of datalink communication with the engine and SPN 27 FMI 2 is for the EGR position data erratic. Are both codes active? If so, double check all connections are tight. I know you've replaced the harness on the engine side. On the truck side harness, is the datalink. By providing such an engaging learning environment, Fawn Creek ensures that its students are well-prepared for success after graduating from school. Fawn Creek schools spend …You will need to remove the steps to access it. 250.1 SPN 1231/FMI 9 - EPA10 - GHG14 Aftertreatment Control Module Message Not Received or Has Stopped Arriving SPN 1231/FMI 9 DescriptionThis Fault Code Sets when the Motor Control Module (MCM) Stops Receiving Messages from the Aftertreatment Control Module (ACM) Monitored …ACM Message Not Received Or Has Stopped Arriving SPN 1231 FMI: 9 ACM - J1939 ACTIVE FAULT CODES (1) SCR Line Heater #3 Circuit Failed Open SPN 4356 FMI: 5 INACTIVE FAULT CODES (7) ACM Sensor Supply 1 Short To Battery SPN 3509 ... DOC Outlet Temperature Circuit Failed Low SPN 3250 FMI: 4 Monday, September 23, 2019 …Last week it started showing this code SPN 1231 fmi 9 would bring stop enging light and after few seconds shut down after few minutes it would come back again and traveling 3 miles would shut down again. I checked all the fuses changed the kill switch since I realized one connector was broken and only one was working and also replaced …

SPN-1231 code on the somputer. ***** 2013 KW. SPN-1231 code on the somputer JA: What is the complete model and serial number of your machine? Customer: ***** 2013 KW T600 JA: Are you fixing this yourself? What have you tried so far?

Are there any battery voltage faults (SPN 168/FMI any)? a. Yes; troubleshoot battery voltage faults first. b. No; Go to step 2. 2. Has the Transmission Control Module (TCM), Motor Control Module (MCM), Aftertreatment Control Module (ACM), or Common Powertrain Controller (CPC) been recently reprogrammed? a. Yes; clear the fault codes.

the CBR solution for .general troubleshooting of SPN 1231 FMI 9 Cause SPN 1231 FMI 9 may appear as INACTIVE and with an occurrence count that is a multiple of three (three, six, nine and so on). This may be a programming issue. Title (customer effect) Mack Chassis - Diagnostic Trouble Code ( DTC ) / Fault Code SPN 1231 FMI 971 satisfied customers. Have a 2012 Peterbilt 386 cummins engine ISX 450 HP/OTQ. have a 2012 Peterbilt 386 cummins engine ISX 450 HP/OTQ showing fault code SPN-1231 9 J1939 Network #2 and also SPN-512 29 Driver's … read more.Jul 4, 2021 · Nate M. Technical Certificate. 1 satisfied customers. Currently in severe winter storm woke up and the truck is. Currently in severe winter storm woke up and the truck is shut down by it self. Code is SPN 1231 FMI 9 and its a 2018 Cascadia … read more. 1231-9 2348-9 J1939 Network #2 : Abnormal Update Rate SAE J1939 Data Link #2 : Abnormal Update Rate 1231-14 2348-14 J1939 Network #2 : Special Instruction SAE J1939 Data Link #2 : Special Instruction 80-1275 Page 4 of 14 Rev: 03/2019 Spn 641 fmi 2 Spn 641 fmi 9 Spn 1231 fmi 2 Can someone help me out with them and also what would be a problem for computer diagnostic won't connect to volvos ecm. Any help is appreciated, thanks! Jasedin, Sep 5, 2016. Jasedin, Sep 5, 2016 #1 + Quote Reply. Trucking Jobs in 30 seconds.Nate M. Technical Certificate. 1 satisfied customers. Currently in severe winter storm woke up and the truck is. Currently in severe winter storm woke up and the truck is shut down by it self. Code is SPN 1231 FMI 9 and its a 2018 Cascadia … read more.code sa 0 spn 3597 fmi 4 output voltage from ECM is too low. spn1127 fmi 18 is turbo charger intake manifold pressure too low. ECM SPN 1231, SAE J1939 Data Link 2 – MID 128 PSID 229. FMI 9 • Abnormal update rate • Missing signal from Aftertreatment Control Module (ACM) • MIL illuminated • Yellow Check lamp illuminatedECU 1, 1231 SPN, Fail 19 / ECU1, 625 SPN, Fail 17 / EEC 61, 639 SPN, Fail 07 / 2012 Cascadia DD15 Low Def Indicator has - Answered by a verified Technician We use cookies to give you the best possible experience on our website.

ranks lapdsesame street 4278verizon store fresnoaltice remote blinking Spn 1231 perla philadelphia photos [email protected] & Mobile Support 1-888-750-3506 Domestic Sales 1-800-221-8159 International Sales 1-800-241-9291 Packages 1-800-800-2327 Representatives 1-800-323-7596 Assistance 1-404-209-4228. SPN : FMI OC SA DTC Description 2. CLEARING DIAGNOSTIC TROUBLE CODES Previously active diagnostic trouble codes can only be cleared by a service tool, such as Diamond Logic® Builder (DLB). Some previously active codes may not be cleared by this method. 3. DEFINITIONS •“SPN” represents the Suspect Parameter Number. This number identifies .... dewayne colley Mar 25, 2023 · Truck has 7-pack air solenoid module, throws spn 1231 fmi 14. The air horn, dl lock, and 5th wheel solenoids are all activated. At the connector I have good power and ground, j1939 at the connector seems to be working(H 3v L 1.9). I don't have DLB at the moment. Does any one have a good diagram or idea as to how to troubleshoot it further. Table 1. SPN 1231/FMI 9. Description. This Fault Code Sets when the Motor Control Module (MCM) Stops. Receiving ... 2015 bmw 528i oil typesmartasset texas paycheck calculator Summary: Mack Chassis - Diagnostic Trouble Code ( DTC ) / Fault Code SPN 1231 FMI 9 Inactive On DTC Readout, Counts In Multiples Of Three - US10 Emissions.Reworded for clarity, added link to related CBR solution. Communication Number: K11533602, Date: 2018-01-16 Category: 110000 ELECTRICAL SYSTEM la vernia parent portalnauti k's riverside bar and grill photos New Customers Can Take an Extra 30% off. There are a wide variety of options. What is The Diagnostic Code SPN 1231 FMI 9? This code is dealing directly with the Motor Control Module (MCM) Stops Receiving Messages from the Aftertreatment Control Module (ACM). There can be different sources for this code being set on your dashboard screen. Here are some of those sources: - Over/under voltage supply to the ACM moduleGot a The code was SPN 5743 and SPN 5742. Recharge them and now has fault code spn 5246 fmi 0 and spn 1231 fmi 9 dpf zone 3 and in 5 mph derate Nexiq pro ...SPN:XXXXFMI:XX Active OC:XXXSA:XXX SPN:XXXXFMI:XX PreviouslyActive OC:XXXSA:XXX NOTE – Turning the key switch off, turning the key switch to the CRANK position, or releasing the park brake will take the gauge cluster out of the diagnostic mode. S08327. 2 BODY CONTROLLER DIAGNOSTIC TROUBLE CODES