NHTSA ID Number: 10141860
Manufacturer Communication Number: 0401-18
TSB/Document Date: 2018-06-18
Summary
0401-18 SPN 1231 (MCM) (EPA10 GHG14)
04 01-18
1
04 01-18
SUBJECT
DATE
SPN 1231 (MCM) (EPA10; GHG14)
April 2018
Additions, Revisions, or Updates
Publication Number / Title
Platform
Section Title
Change
DDC-SVC-MAN-0084
DD Platform
SPN 1231/FMI 9 EPA10 - GHG14
The procedure has been updated.
DiagnosticLink users: Please update the troubleshooting guides in DiagnosticLink with this newest version. To update the
tool troubleshooting guide, open DiagnosticLink and from the Help – Troubleshooting Guides menu, select the appropriate
troubleshooting manual, then click Update.
All information subject to change without notice.
04 01-18
Copyright © 2018 DETROIT DIESEL CORPORATION
3
2 SPN 1231/FMI 9 - EPA10 - GHG14
2
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) Communication
Typical Enabling Conditions
Always Enabled
Monitor Sequence
None
Execution Frequency
Always Enabled
Typical Duration
Two Seconds
Dash Lamps
MIL is Solid, CEL and AWL Flash
Engine Reaction
30 Seconds Shutdown
Verification
Turn the Ignition OFF, disconnect the USB link from the 9-pin
connector. Wait Five Minutes, reconnect the USB link and
DiagnosticLink. Turn the Ignition ON and recheck for the fault code.
4
All information subject to change without notice.
Copyright © 2018 DETROIT DIESEL CORPORATION
04 01-18
04 01-18
Possible causes:
•
•
•
•
•
•
Over/under voltage supply to the ACM module
Fault set during a reprogram event
Loss of power to the ACM
Loss of ground to the ACM
Loss of ignition switch power to the ACM
Open in the CAN-H/Can-L communication circuit to the ACM
Tools Needed:
Table 2.
Part Number
Description
Wire /Shrink tube color
DKI470E16022-37
0.64mm x 0.64mm Probe
Red/Red
DKI470E16022-42
2.8mm x 0.8mm Probe
Light brown/Red
1. Connect DiagnosticLink®.
2. Have the Aftertreatment Control Module (ACM), Motor Control Module (MCM), Common Powertrain Controller
(CPC), Transmission Control Module (TCM) or Integrated Powertrain Predictive Controller (IPPC)/Integrated
Powertrain Module (IPM) been recently programmed?
a. Yes; Go to step 3.
b. No; Go to step 4.
All information subject to change without notice.
04 01-18
Copyright © 2018 DETROIT DIESEL CORPORATION
5
2 SPN 1231/FMI 9 - EPA10 - GHG14
3. Turn ignition OFF, close DiagnosticLink, and disconnect the USB link from the 9-pin connector. Wait five minutes,
reconnect the USB link and DiagnosticLink. Turn the Ignition ON and recheck for the fault code. Does fault code SPN
625/FMI 9 become active in the CPC?
a. Yes; Go to step 4.
b. No; the fault code was set during the reprogramming event. No further diagnostics or repairs are needed for this
fault.
4. Check for battery voltage fault codes. Are fault codes SPN 168/FMI any present in the modules?
a. Yes; diagnose the battery voltage fault codes.
b. No; Go to step 5.
5. Check for other communication fault codes; is fault code SPN 625/FMI 9 also present in the CPC?
a. Yes; Go to step 17.
b. No; Go to step 6.
6. Turn the ignition OFF.
7. Disconnect and inspect the ACM 21-pin electrical connector harness side. Refer to section "Electrical Connector
Inspection". Is there corrosion, damage, bent or spread pins?
a. Yes; Refer to section "Electrical Connector Inspection".
b. No; Go to step 8.
8. Measure the resistance between 3, 5, 6, 8, and 9 of the 21-pin ACM connector, harness side and battery ground. Are
the resistances less than five ohms for each pin?
a. Yes; Go to step 9.
b. No; repair the circuit between pins 3, 5, 6, 8, 9 and the circuit splice.
9. Measure the battery voltage directly at the batteries. Record the results.
10. Turn the ignition ON (key ON, engine OFF).
11. Measure the voltage on pins 11, 12, 14, 15, and 18 of the ACM 21-pin connector, harness side and battery ground. Is
the voltage measurement on pins 11, 12, 14, 15, and 18 within 0.5 volt of the battery voltage?
6
All information subject to change without notice.
Copyright © 2018 DETROIT DIESEL CORPORATION
04 01-18
04 01-18
a. Yes; Go to step 12.
b. No; repair the circuits in question.
12. Measure the voltage between pin 16 of the ACM 21-pin electrical connector, harness side and battery ground. Is the
voltage within 0.5 volt of the battery voltage?
a. Yes; Go to step 13.
All information subject to change without notice.
04 01-18
Copyright © 2018 DETROIT DIESEL CORPORATION
7
2 SPN 1231/FMI 9 - EPA10 - GHG14
b. No; repair the ignition power circuit between pin 18 of the ACM 21-pin electrical connector, harness side, and
fuse A in the Powernet Distribution Box (PNDB).
CAUTION: ELECTRICAL SHOCK
To avoid injury from electrical shock, use care when connecting battery cables. The magnetic
switch studs are at battery voltage.
13. Turn the ignition OFF and disconnect the batteries.
14. Measure and record the resistance between pin 10 and pin 20 of the ACM electrical connector component side. Is the
resistance between 115 and 125 ohms?
a. Yes; Reconnect the ACM 21-pin electrical connector and Go to step 15.
b. No; replace the ACM.
15. Disconnect and inspect the 18-pin Powertrain Starpoint electrical connector harness side. Refer to section "Electrical
Connector Inspection". Is there corrosion, damage, bent or spread pins?
8
All information subject to change without notice.
Copyright © 2018 DETROIT DIESEL CORPORATION
04 01-18
04 01-18
a. Yes; Refer to section "Electrical Connector Inspection".
b. No; Go to step 16.
16. Measure and record the resistance between pins 7 and 9 of the Starpoint electrical connector harness side. Is the
resistance within 1.5 ohms of the measurement taken in step 14?
a. Yes; replace ACM.
b. No; repair the CAN circuits between the powertrain Starpoint and the ACM.
17. Disconnect and inspect the CPC electrical connector #3. Refer to section "Electrical Connector Inspection". Is there
corrosion, damage, bent or spread pins?
All information subject to change without notice.
04 01-18
Copyright © 2018 DETROIT DIESEL CORPORATION
9
2 SPN 1231/FMI 9 - EPA10 - GHG14
a. Yes; Refer to section "Electrical Connector Inspection".
b. No; Go to step 18.
18. Measure and record the resistance between pin 19 and pin 21 component side. Is the resistance between 115 and 125
ohms?
10
All information subject to change without notice.
Copyright © 2018 DETROIT DIESEL CORPORATION
04 01-18
04 01-18
a. Yes; reconnect the CPC electrical connector and Go to step 19.
b. No; replace the CPC.
19. Disconnect and inspect the ACM 21-pin electrical connector harness side. Refer to section "Electrical Connector
Inspection". Is there corrosion, damage, bent or spread pins?
a. Yes; Refer to section "Electrical Connector Inspection".
b. No; Go to step 20.
20. Measure and record the resistance between pin 10 and pin 20 of the ACM electrical connector component side. Is the
resistance between 115 and 125 ohms?
a. Yes; reconnect the ACM 21-pin electrical connector and Go to step 21.
b. No; replace the ACM.
21. Multiply the resistance measurements from steps 18 and 20 together and record the results. Then add the resistance
measurements from steps 18 and 20 together. Finally divide the multiple results by the added results. Record your
results. Then Go to step 22.
EX: 118 ohms x 120 ohms = 14160
118 ohms + 120 ohms = 238
14160 / 238 = 59 ohms
22. Disconnect and inspect the MCM 21-pin electrical connector harness side. Refer to section "Electrical Connector
Inspection". Is there corrosion, damage, bent or spread pins?
a. Yes; Refer to section "Electrical Connector Inspection".
b. No; Go to step 23.
23. Measure and record the resistance between pins 13 and 19 of the Starpoint electrical connector harness side. Is the
resistance within 1.5 ohms of the measurement taken in step 21?
a. Yes; replace the MCM.
All information subject to change without notice.
04 01-18
Copyright © 2018 DETROIT DIESEL CORPORATION
11
2 SPN 1231/FMI 9 - EPA10 - GHG14
b. No; repair the CAN circuits between the MCM and the powertrain Starpoint.
12
All information subject to change without notice.
Copyright © 2018 DETROIT DIESEL CORPORATION
04 01-18
- 💯【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: 0401-18
Replacement Service Bulletin Number:
MFR Communication Date: 2018-04-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
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.