NHTSA ID Number: 10115408
Manufacturer Communication Number: IK1201012
TSB/Document Date: 2017-08-16
Summary
SPN 731 FMI 16 Knock Detected: Cylinder Acceleration above Normal
IK1201012 SPN 731 FMI 16 Knock Detected: Cylinder Acceleration above Normal
Countries:
Page 1 of 7
BAHAMAS, BOLIVIA, BELIZE, CANADA, CHILE, TAIWAN,
COLOMBIA, COSTA RICA, DOMINICAN REPUBLIC,
ECUADOR, EL SALVADOR, TRINIDAD AND TOBAGO,
UNITED STATES, URUGUAY, VENEZUELA, ARUBA,
NICARAGUA, PERU, PUERTO RICO, Curaçao, GUAM,
GUATEMALA, GUYANA, HAITI, HONDURAS, JAMAICA,
KOREA, SOUTH KOREA, PANAMA
Availability: ISIS
Revision: 11
Major
ENGINES
System:
Current
English
Language:
Other
NONE
Languages:
Viewed:
Document
IK1201012
ID:
Created:
11/11/2013
Last
Modified:
12/4/2015
Author:
Jay
Weston
16227
Less Info
Coding Information
Hide Details
Copy Link
Copy Relative Link
Bookmark
Add to Favorites
Provide Feedback
View My Bookmarks
Helpful
Not Helpful
63
23
Title : SPN 731 FMI 16 Knock Detected: Cylinder Acceleration above Normal
Applies To : All 2010 MF 11/13, 2013+ N13 Big Bore Engines with the latest 3.15 Software Level (Calibration ID
xxxxARxx or higher)
CHANGE LOG
12/04/2015 - Updated to remove IK1201124 reference.
10/28/2015 - Fixed broken hyperlink (feedback), updated SRT section, replaced TSI links with direct link to iKNow articles.
09/16/2015 - Updated related fault codes references.
01/02/2015 - Fixed link in Step 8, IK1200646
11/19/2014 - Update Repair Procedure and Diagnostics. Remove FMI 18 now located at IK1201209
DESCRIPTION
This document will guide the user through diagnostics and repair procedures for SPN 731 FMI 16. It is important to thoroughly review the document
as serious engine damage can occur if warnings are not heeded. As such, safeguards had been included in certain calibrations to prevent engine
restart after the codes have been set.
An interview with the driver of the unit at the time of the fault
code setting is critical with assisting in the troubleshooting process.
Common questions:
• Was the vehicle in motion
• Was the unit in PTO
• Has this truck been down for major repairs recently
SYMPTOMS
Diagnostic Trouble Codes:
DTC/Light
Description
SPN 731 FMI 16 Knock Detected: Cylinder Acceleration Above Normal
Customer Observations or Concerns:
Red Stop Lamp with audible alarm
- Engine self shut-down
- Inability to restart engine
- Unrequested engine acceleration
Fault Code Entry Conditions:
731-16 Knock Detected: Cylinder Acceleration Above Normal
Condition /
Setting Criteria
Enable Conditions / Values
Description
The use of the CKP
An increase in
(Crankshaft position) crankshaft velocity
sensor to monitor without an increase in
command
•
•
•
•
Vehicle Speed = 0
Engine speed > 500 RPM
Accelerator pedal = 0%
Manual Transmission Clutch Pedal = Not Depressed
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 1/4/2016
IK1201012 SPN 731 FMI 16 Knock Detected: Cylinder Acceleration above Normal
power cylinder
velocity
Page 2 of 7
• Coolant temperature is between -9 deg. C and 120 deg. C
(15 deg. F and 248 deg. F)
• Monitor enabled During Operating modes (Listed Below)
Normal Operation
• Stationary Regeneration
• High Altitude
• Medium Altitude
• Sea Level
• PTO
• No Active Faults with (Listed Below)
◦ Coolant Temperature Sensor Faults
◦ Clutch Switch Faults
◦ Vehicle Speed Sensor Faults
Related Fault Codes:
SPN
190
190
190
1322
132x
731
FMI
0
11
15
31
31
18
Description
Engine Overspeed Most Sever Level
Engine Overspeed Vehicle Event
Engine Overspeed Detected
Misfire - Multiple Cylinders
Misfire Cylinder X(16)
Knock Detected: Unexpected Fueling Without Demand
Diagnostic Path
Reference IKnow IK1201048
Continue with 731 diagnostics
Continue with 731 diagnostics
Reference Diagnostic Manual
Reference Diagnostic Manual
Reference IK1201209
SPECIAL TOOLS / SOFTWARE
Tool Description
Electronic Service Tool
Flywheel Timing Tool
Tool Number
Fabricated Tool
Comments
ServiceMaxx, EZ Tech, ect
If necessary
Instructions
Below
Flywheel Timing Tool Assembly:
Parts
-M6 x 25mm Bolt (15mm-30mm will work)
2" x 1" Clear Hard Plastic
-1/4" drill bit
-Digital Caliper or equivalent
Fine Tip Marker
Instructions
1) Drill a 1/4" hole, centered at one end of the clear plastic
2) Thread the M6 bolt through the hole
3) Measure 1.300 inches from the edge of the bolt using digital caliper and mark a line on the plastic
4) With the boltfree end facing away, mark the right edge of the plastic with a marker, as shown in Figure 1
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 1/4/2016
IK1201012 SPN 731 FMI 16 Knock Detected: Cylinder Acceleration above Normal
Page 3 of 7
Figure 1: Flywheel Timing Tool
SERVICE PARTS INFORMATION
Kit Description
Part Number
Quantity
Required
Notes
Cartridge should be used unless guided to replace
complete turbo by IKnow IK1200909
Cartridge should be used from compete unless guided to
replace complete turbo by IKnow IK1200909
Kit, HP Turbo Cartridge
2511792C91
1
Turbocharger Ass Hi Press 11L
3005698C9x
1
Tube Assembly, Oil Supply
3018397C9x
1
Updated line
Kit, Turbo Supply Line Fitting
2512772C9x
1
Kit is needed if not equipped with new line prior to repair.
Prostar 122 Heater Hose Routing 2513145C91
1
Kit is needed if not equipped with new line prior to repair.
ORing, #118 0.862"x0.965"
Kit, Flywheel 15.5 inch
1
1
If necessary
For Manual Transmission
1820907C2
7090698C91
DIAGNOSTIC STEPS
Diagnostics for 73116 Knock Detected: Cylinder Acceleration above Normal
Step Action
Inspect for oil in the Intake
1
Decision
Yes. Proceed to Step 2
Remove boost air piping at the outlet of the turbo and outlet of the CAC. Inspect piping for large
amounts of oil.
No. Proceed to Step 3
Is there a significant amount of oil present in the boost air piping?
Step Action
Peform the following repairs:
2
Decision
Go to Step 8
• Replace Turbo Center Section (Refer to IK1201242 for procedure).
• Clean CAC (Refer to IK1201179)
• Verify that oil has not reached the DOC. If it has the DOC and DPF need to be removed to
drain. (Refer to Open TSI's and Service Manual for procedure).
https://evalue.internationaldelivers.com/service_kb/DocTool/ArticleViewer.aspx?ControlID... 1/4/2016
IK1201012 SPN 731 FMI 16 Knock Detected: Cylinder Acceleration above Normal
Page 4 of 7
• iApprove will need to be started and pictures are required for the inlet/outlet of the DOC
(Diesel Oxidation Catalist) and DPF (Diesel Particulate Filter). Location of the iApprove on
the Vehicle Information Page, iApprove Tab
Note: Verify the engine will bar over by hand before starting when repairs are complete.
Note: None of the above repairs require preapproval.
Step Action
3
Yes. Continue to Step 6.
Does the engine have a misfire or run rough?
No. Proceed to Step 4.
Step Action
Review repair history
4
Decision
Verify concern
Interview driver and look up past repair history per Service Portal home page/warranty tab.
Decision
Yes. Proceed to Step 8.
No. Proceed to Step 5.
Has the engine had any major engine repairs (Cylinder head, Pistons, rods, injectors)?
Step Action
5
- 💯【Conta.ct us for Support Directly】If you met any...
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS...
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full...
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...
- 【TURN OFF CEL】 This AL319 car scanner diagnostic tool...
- 【EXTENSIVE APPLICATION】 Autel AL319 Compatible with...
- 【FOR END USER & DIYERS】 This error code reader AL319 is...
- 【USER-FRIENDLY DESIGN】 This OBD2 scanner and check...
- 【HIGH-QUALITY SERVICES】 12 months war.ranty from the...
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: IK1201012
Replacement Service Bulletin Number:
MFR Communication Date: 2015-12-04
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- [Notice] When you receive a used device, it may be a customer return resold by Amazon without inspection. You can exchange it for a new one through Amazon. As this situation is unavoidable, we sincerely apologize. For any issues, contacting us via Amazon's "Messages" is the best way. THINKSCAN 689BT Bidirectional Scan Tool Can Be Used Immediately After It is Turned On, Without Complicated Registration Process, Which is More Convenient & Quick.
- Full Bi-Directional Control & 3000+ Active Tests: Take control and test components like actuators, fuel injectors, relays, and cooling fans in real time. You’ll quickly see if the problem is in the part itself or the control module — saving you hours of guesswork and frustrating trial-and-error.
- Advanced ECU Coding Capabilities: Handle module matching and hidden feature activation with confidence. When you replace an ECU or want to customize settings, this obd2 scanner diagnostic bi directional tool gives you the professional-level capabilities you need without the dealership price tag.
- 34+ Useful Reset and Maintenance Functions: Complete everyday service tasks smoothly with a wide range of helpful reset and maintenance functions. Whether you’re keeping up with regular upkeep or tackling a specific job, this scanner makes maintenance simpler and less stressful for both DIYers and pros.
- Comprehensive Full System Diagnostics: Diagnose every major system — Engine, Transmission, ABS, SRS, TPMS, and more — all in one place. Finally stop wondering if you’re missing something important; get the full picture and clear codes with ease.
- Top Reasons to Choose the D7S OBD2 Scanner: XTOOL D7S car scan tool, an upgrade of XTOOL D7, offers comprehensive features for automotive technicians, workshops, and DIY enthusiasts 1. Upgraded Hardware: 2+64GB memory, rear camera, intuitive interface, foldable bracket 2. Complete Diagnostics: FCA
Autoauth, OE-level all system scan, 39+ maintenance services, 4K+ bidirectional, CANFD/DoIP protocol 3. Advanced Capabilities: ECU c0ding, PMI functions 4. Wide Compatibility: Support 10,000+ models, covering 99% vehicle brands 5. Multi-language: Available in 22+ languages, No IP Restrictions 6. 3-Year Updates: Save 300 bucks on software updates for the latest features and optimizations - 2026 Upgraded D7S Car Scanner Features: The newly 2026 D7S V2.0 scanner for car brings exciting features for advanced vehicle diagnostics and enhanced user experience 1. FCA AutoAuth: Now supports FCA SGW module for Chrysler, for Jeep, for Dodge (2018+), for Fiat (2017+), enabling faster vehicle communication without gateway restrictions 2. PMI (Offline ECU Pr0gramming): Allows for Ford, for Lincoln, and for Mazda ECU pr0gramming for new modules 3. Optimized Diagnostic Report 2.0: Personalized reports with logos and customer info for auto shops. Note: Compatibility varies by cars, please check before order
- 39+ Services/Resets/Adaptations/Relearns/Calibrations: XTOOL D7S full system car scanner diagnostic tool tackles 99% of common car issues through its 36+ special functions, including Oil Reset, EPB, SAS, BMS, Throttle Reset, Injector C0ding, ABS Bleed, TPMS Reset, Power Balance, etc and also covers specific-vehicle functions like Crank Sensor Relearn, ABS Initialization, Cylinder Power Balance, Fuel Trim Reset, Idle Relearn etc. This car diagnostic scanner enhances efficiency, making repairs and maintenance hassle-free. Tip: DO NOT for All vehicles, please check compatibility first
- Cost-effective ECU C0ding Scan Tool for Specific Brands: Enhance your vehicle's performance with XTOOL D7S! This obd2 scanner all systems bidirectional offers advanced capabilities at an affordable price, supports online for BMW, for Benz and offline for BENZ, for MIT, along with PMI functions for Ford, for Mazda, and for Lincoln
. Ideal for technicians and DIY enthusiasts, this automotive scanner diagnostic tool optimizes vehicle performance and enhances the driving experience. Note: Not for all cars and modules, please send car VIN to check the compatibility before purchase - OE All System Diagnostic & 8 Pids Graphing: XTOOL D7S is a comprehensive all system bi directional obd2 scanner that delivers dealer-level diagnostics, completely controlling over your vehicle’s performance and health. This automotive scan tool can read and clear DTCs, view live data and ECU information, retrieve freeze frames, and perform active tests and full obd2 functions. This bi-directional scan tool can can identify your vehicle's make, model, and year information with just one click and show up to 8 PIDs live data with options for CSV viewing, playback, and recording for in-depth analysis. It is easy-to-use for both professionals and beginners, helping pinpoint issues efficiently
- 【✅Compared to BOSSCOMM IF742, IF745 Offers Full-System Diagnostics】The BOSSCOMM IF745 car diagnostic scanner is an upgraded model of IF742. In addition to supporting all OBD2 Code Reader functions and 6 reset options (ABS/EPB/SAS/BMS/Oil/Throttle), it expands diagnostics from 4 systems (Check Engine/ABS/SRS/Transmission) to vehicle All systems, including Steering, Suspension, and Body Electronics. This provides deeper, more comprehensive diagnostic capabilities.
- 【✨10 OBD2 Functions】The BOSSCOMM IF745 scan tool’s DTC Lookup instantly translates fault codes into user-friendly explanations, its I/M Readiness feature streamlines emissions testing with a single tap, and Freeze Frame lets you pinpoint the exact moment of a fault for in-depth root-cause diagnosis. Combined with a live data dashboard and advanced diagnostics (O2S, OBMon, EVAP), it delivers comprehensive insights for confident troubleshooting.
- 【✨Deep Diagnostics for All Vehicle System Modules】Beyond code reading/clearing and ECU information retrieval, our all-in-one data stream feature lets you inspect all current fault codes and their locations across the vehicle’s systems. This vehicle code reader helps you turn off dashboard warning lights and perform a comprehensive self-check of your car at home—no more back-and-forth trips to the repair shop or hefty inspection fees.
- 【✨6 Essential Resets: ABS Bleeding, Oil, EPB, SAS, Throttle, BMS】The BOSSCOMM IF745 obd2 scanner diagnostic tool swiftly purges air from brake lines to restore braking sensitivity, fine-tunes maintenance cycles to eliminate false alerts, resolves parking brake issues with one-click control, recalibrates steering sensors for stability, optimizes engine idling/acceleration for smoother performance, and deeply resets battery systems to extend lifespan and range via precise parameter adjustments.❗NOTE: Does NOT support bidirectional control, coding, or programming.
- 【✨10,000+ Car Models, AutoVIN, 13 Languages】The BOSSCOMM IF745 vehicle scanner diagnostic tool covers 73+ global car brands and offers support in 13 languages, making it perfect for DIYers, auto mechanics, or as a thoughtful gift. With a single-click AutoVIN feature, it instantly retrieves vehicle serial numbers, streamlining diagnostics for users globally. This adaptable tool balances user-friendliness with precision, catering to both personal and professional requirements.✅Unsure about compatibility? Compatibility will vary on vehicles' model and year, pls reach us via 📧 [email protected] 📧 before purchase.
This product presentation was made with AAWP plugin.