NHTSA ID Number: 10056592
Manufacturer Communication Number: SIB-SPN-4077
TSB/Document Date: 2015-01-10
Summary
DETROIT: WHEN THE HYDROCARBON (HC) DOSER FUEL LINE PRESSURE (FLP) SENSOR CIRCUIT FAILS HIGH, THE MOTOR CONTROL MODULE (MCM) DETECTS IT, A FAULT CODE WILL SET. *PE
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)
- Restores fuel economy
- Stabilizes ethanol
- Maximizes horsepower
- Improves responsiveness
- For use in both gasoline and diesel engines
This product presentation was made with AAWP plugin.
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: SIB-SPN-4077
Replacement Service Bulletin Number:
MFR Communication Date: 2014-07-01
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
7 16-14
1
7 16-14
SB-10056592-2626
SUBJECT
DATE
SPN 4077 (MCM)(EPA07;EPA10;GHG14)
July 2014
Additions, Revisions, or Updates
Publication Number / Title
Platform
DDC-SVC-MAN-0084
DD Platform
Section Title
Change
SPN 4077/FMI 3 - EPA07 - EPA10 - GHG14
The diagnostic procedures have been
updated.
SPN 4077/FMI 4 - EPA07 - EPA10 - GHG14
All information subject to change without notice.
7 16-14
Copyright © 2014 DETROIT DIESEL CORPORATION
3
2 SPN 4077/FMI 3 - EPA07 - EPA10 - GHG14
2
SPN 4077/FMI 3 - EPA07 - EPA10 - GHG14
Doser Fuel Line Pressure Sensor Circuit Failed High
Table 1.
SPN 4077/FMI 3
Description
This fault code sets when the Motor Control Module (MCM) detects
that the Hydrocarbon (HC) Doser Fuel Line Pressure (FLP) Sensor
Circuit is failed high.
Monitored Parameter
Hydrocarbon (HC) Doser Fuel Line Pressure Sensor
Typical Enabling Conditions
Always Enabled
Monitor Sequence
None
Execution Frequency
Always Enabled
Typical Duration
2 Seconds
Dash Lamps
MIL, CEL
Engine Reaction
None
Verification
Engine Idle (1 minute)
Check as follows:
1. Connect DiagnosticLink ®.
2. Turn the ignition ON (key ON, engine OFF).
3. Is the engine equipped with a DD15 AT engine?
a. Yes; Go to step 11.
b. No; Go to step 4.
4. Check for multiple fault codes. Is fault code SPN 3480/FMI 3 also present?
4
All information subject to change without notice.
Copyright © 2014 DETROIT DIESEL CORPORATION 7 16-14
7 16-14
a. Yes; repair the circuit between pin 104 of the 120-pin Motor Control Module (MCM) and pin 2 of the Fuel Doser
Line Pressure sensor electrical connector/pin 2 of the Fuel Compensation Pressure sensor. Verify repair.
b. No; Go to step 5.
5. Is fault code SPN 3510/FMI 3 also present?
a. Yes; diagnose SPN 3510/FMI 3 first; Refer to section "SPN 3510/FMI 3 - EPA07 - EPA10 - GHG14".
b. No; Go to step 6.
6. Turn the ignition OFF.
7. Disconnect the hydrocarbon doser fuel line pressure sensor (1).
8. Disconnect the 120-pin Motor Control Module (MCM) connector.
9. Measure the resistance from pin 111 of the 120-pin MCM connector harness side and pin 1 of the hydrocarbon doser
fuel line pressure sensor electrical connector harness side. Is the resistance less than 5 ohms?
a. Yes; Go to step 10.
b. No; repair the circuit between pin 111 of the 120-pin MCM connector and pin 1 of the hydrocarbon doser fuel
line pressure sensor electrical connector. Verify repair.
10. Measure the resistance from pin 104 of the 120-pin MCM connector harness side and pin 4 of the hydrocarbon doser
fuel line pressure sensor electrical connector harness side. Is the resistance less than 5 ohms?
a. Yes; replace the Motor Control Module (MCM), Refer to section "Removal of the Motor Control Module".
Verify repair.
b. No; repair the circuit between pin 2 of the hydrocarbon doser fuel line pressure sensor and the circuit splice.
Verify repair.
11. Check for multiple fault codes. Is fault code SPN 3480/FMI 3 also present?
a. Yes; repair the circuit between pin 104 of the 120-pin Motor Control Module (MCM) and pin 2 of the Fuel Line
Pressure sensor electrical connector/ pin 4 of the Fuel Compensation Pressure sensor electrical connector. Verify
repair.
b. No; Go to step 12.
12. Is fault code SPN 3510/FMI 3 also present?
a. Yes; diagnose fault code SPN 3510/FMI 3 first, Refer to section "SPN 3510/FMI 3 - EPA07 - EPA10 - GHG14".
b. No; Go to step 13.
13. Turn the ignition OFF. Go to step 14.
All information subject to change without notice.
7 16-14
Copyright © 2014 DETROIT DIESEL CORPORATION
5
2 SPN 4077/FMI 3 - EPA07 - EPA10 - GHG14
14. Disconnect the hydrocarbon doser fuel line pressure sensor (1).
15. Disconnect the 120-pin Motor Control Module (MCM) connector.
16. Measure the resistance from pin 111 of the 120-pin MCM connector harness side and pin 4 of the hydrocarbon doser
fuel line pressure sensor electrical connector harness side. Is the resistance less than 5 ohms?
a. Yes; replace the MCM, Refer to section "Removal of the Motor Control Module". Verify repair.
b. No; repair the circuit between pin 111 of the 120-pin MCM connector and pin 4 of the hydrocarbon doser fuel
line pressure sensor electrical connector. Verify repair.
6
All information subject to change without notice.
Copyright © 2014 DETROIT DIESEL CORPORATION 7 16-14
7 16-14
3
SPN 4077/FMI 4 - EPA07 - EPA10 - GHG14
Doser Fuel Line Pressure Sensor Circuit Failed Low
Table 2.
SPN 4077/FMI 4
Description
This fault code sets when the Motor Control Module (MCM) detects
that the Hydrocarbon (HC) Doser Fuel Line Pressure (FLP) Sensor
Circuit is failed low.
Monitored Parameter
Hydrocarbon (HC) Doser Fuel Line Pressure Sensor
Typical Enabling Conditions
Always Enabled
Monitor Sequence
None
Execution Frequency
Always Enabled
Typical Duration
2 Seconds
Dash Lamps
MIL, CEL
Engine Reaction
None
Verification
Engine Idle (1 minute)
Check as follows:
1. Connect DiagnosticLink ®.
2. Turn the ignition ON (key ON, engine OFF).
3. Check for multiple fault codes. Is fault code SPN 3510/FMI 4 also present?
a. Yes; diagnose SPN 3510/FMI 4; Refer to section "SPN 3510/FMI 4 - EPA07 - EPA10 - GHG14".
b. No; Go to step 4.
4. Is this vehicle equipped with a DD15 AT engine?
All information subject to change without notice.
7 16-14
Copyright © 2014 DETROIT DIESEL CORPORATION
7
3 SPN 4077/FMI 4 - EPA07 - EPA10 - GHG14
a. Yes; Go to step 6.
b. No; Go to step 5.
5. Disconnect the Hydrocarbon doser fuel line pressure sensor (1). Is fault code SPN 4077/FMI 4 still present?
a. Yes; repair the circuit between pin 111 of the 120-pin MCM connector and pin 1 of the hydrocarbon doser fuel
line pressure sensor connector. Verify repair.
b. No; replace the hydrocarbon doser block; Refer to section "Removal of the Hydrocarbon Doser Block ". Verify
repair.
6. Disconnect the Hydrocarbon doser fuel line pressure sensor (1). Is fault code SPN 4077/FMI 4 still present?
8
All information subject to change without notice.
Copyright © 2014 DETROIT DIESEL CORPORATION 7 16-14
7 16-14
a. Yes; repair the circuit between pin 111 of the 120-pin MCM connector and pin 4 of the hydrocarbon doser fuel
line pressure sensor electrical connector. Verify repair.
b. No; replace the hydrocarbon doser block; Refer to section "Removal of the Hydrocarbon Doser Block ". Verify
repair.
All information subject to change without notice.
7 16-14
Copyright © 2014 DETROIT DIESEL CORPORATION
9
- 💝【Questions? We’re Here Anytime】MK808S is a high-end flagship model that connects via wired OBD2 for faster, more stable, and reliable diagnosis compared to B,.T tools. If you have any questions about setup, activation, features, additional accessories, or update subscriptions, please reach us and we will respond promptly to assist you. It includes 1-Year F.ree Updates (124.5 bucks/year after), and most functions still work after expiration except a few online features. Please note some functions like full TPMS are not supported, reach us for model recommendations.
- 🔥🔥🔥【2026 NEWLY RELEASED BI-DIRECTIONAL CONTROL】As the 2026 upgraded version of MaxiChek MX808 MaxiDiag MD909 Pro MD906 Pro, our Newest MK808S auto diagnostic scanner for all cars inherits the powerful Bi-directional Control which makes it the most cost-effective scanner (without breaking the bank, same as MK900BT MS906 PRO MS906MAX). Active test is widely used on car subsystems to help you check if the car actuators are all in good condition. Such as windows, rear mirrors, sunroof, wipers...
- 【28+ MOST POPULAR RESET SERVICE FOR 150 MAKES】Autel versatile OBDII scanenr MK808S, full level-up of MX808, work as MX900, MK900, MK900-BT, supports 150+ car brands worldwide. Like the OBD2 code reader MaxiCOM MK808BT Pro, MK808S is equipped with 28+ hot services including 0il Reset, SAS Calibration, ABS Bleeding, Battery Registration, etc. MK808S ranks top in professional automotive tablets and keeps updating to support more newer modes from 2025 to 2026.
- 【ALL SYSTEM DIAGNOSTICS, FACTORY-LEVEL SCANNER】The MK808S dealer-level scanner, like Snap-on tools, effectively works all cars for all system diagnostics. It reads/clears codes, displays 5-in-1 Live Data, performs active tests, and special functions for all available modules. With a few clicks, you can easily understand the vehicle's condition. The convenient Wi-Fi printing feature allows you to generate a detailed report, highlighting the exact nature of the problem.
- 【AUT0 SCAN & AUT0V1N, 10X FASTER】How much have you spent on car maintenance? Even a minor issue can take up a significant amount of time. The MK808S is designed to improve your work efficiency. With its Aut0V1N technology, you can check your car's make, model, and year information with just one click. The Aut0Scan feature automatically scans all of the vehicle's modules and detects any fault codes. Check Aut0V1N compatibility by reaching us at 📞1-833-436-5880. Available Mon-Fri, 9 AM-6 PM EST.
- 💯【Conta.ct us for Support Directly】If you met any issues about: Received a registered device/ Language Changing/ Function not Support/ Blueto-oth connector malfunction/ Subscription Renewal, please conta.ct us via 📞autelsupply @outlook. com🛣️, we will provide perfect solution for you. ⚠️Note: Autel MK900BT comes with 1-Year Free Software Update, most features will remain active after update subscription expires. For questions regarding updates or need more useful accessories, please conta.ct us via 📞autelsupply @outlook.com🛣️. 2. If you encounter Blueto-oth adapter VCI150 malfunction, please tell us 📞autelsupply @outlook. com🛣️, we will handle it promptly.
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW MODEL OF MK808S MK900 MX900 MK808BT MX808S】2026 newest Autel MK900BT retains all features of MK808S MX900 MX808S MK808Z MK808Z-BT MK808K-BT, while EXTRA added powerful functions (value 2000+ bucks). The Pro-level Autel MK900BT makes a big leaps: 28+➡40+, 50+➡3000+ Active Tests, 2026 NEW✅CAN FD & DOIP protocols ✅Pre&Post diagnostic report ✅WIFI Print ✅Auto VIN&Auto Scan 2.0 ✅Scan VIN/ License ✅Battery Test (Need purcha.se BT506). If found defect or us.ed, please conta-ct 📞autelsupply @outlook. com📞 get perf-ect solut.ion.
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS906 PRO】Differ from MS906BT MS906 MP808 MK808 MX808 MK808BT only 50 tests, Autel scanner MK900BT escaner automotriz professional offers 3000+ active tests, it can send command to ECUs & monitor actuators operation, quickly locating faulty components. Bidirectional scanning takes your diagnostics to the next level with menu lists 3000+ active tests, such as windows, rear mirrors, sunroof, wipers, fuel injector, coolant fans, radiator fan, AC clutch, coolant pump and more. Note: Functions are not available for all vehicles, please send vehicle VIN to us check compatibility.
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full level-up of OBD2 code reader MaxiCOM MK808S MK808 MK808Z MX808 MK808Z-BT with 28 service, Autel scan tool MK900BT/ MK900-BT offers 40+ maintenance service on 150+ brands 10,000 vehicles from 1996-2025-2026. Hottest Services like: Oil Reset, ABS Bleed, SAS Calibration, Injector Coding, SRS, Throttle Reset, Gearbox Reset, Battery Registration etc. Added 12+ advanced resets: rain slash light sensor reset, HVA.C/ SUS calibration etc. Welcome to send Vehicle Make>Model>Year>VIN>Functions you required to 📞autelsupply @ outlook . com📞 check compatibility.
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE/ AUTO VIN】2026 new release Autel MaxiCOM MK900-BT scan tool embodies all system diagnostic with its 8in display for all vehicles. Like Sna.p-on tools, it can perform ✔Read/Clear Codes✔Displays 5-in-1 Live Data✔Record & Playback Data✔Retrieve Info on all available systems like ABS ECM BCM SRS TCM etc. In addition to Auto VIN technology, Autel MK900BT adds Scan License/ Auto Scan 2.0 to identify vehicle’s VIN/ license, make, year, model, no need manual input; One-click WiFi Printing of Pre&Post comparison diagnostic reports, highlight root causes of problems.
- 【TURN OFF CEL】 This AL319 car scanner diagnostic tool supports Reading and Clearing DTCs, DTC Look Up, displaying Live Data, Freeze Frame & I/M Readiness, view vehicle information, etc., to figure out the root cause of the Check Engine Light (CEL) and turn it off, helping you catch any potential issues early and avoid excessive costs from unnecessary repairs.
- 【EXTENSIVE APPLICATION】 Autel AL319 Compatible with 7 languages (English, French, Spanish, etc.) and various post-1996 OBD II protocol vehicles (Toyota
, Nissan, Honda, Ford, etc.), this OBD II scanner provides accurate and fast diagnosis for worldwide car owners. - 【FOR END USER & DIYERS】 This error code reader AL319 is “plug and play” and comes with an easy interface. Even if you’re not familiar with vehicle repair, you can quickly take control of this obd2 scanner, and get the information you want.
- 【USER-FRIENDLY DESIGN】 This OBD2 scanner and check engine code reader features a patented One-Click I/M Readiness, TFT color display, built-in speaker, LED Indicator etc. The cable is long enough without being too long and getting in the way. No batteries are needed.
- 【HIGH-QUALITY SERVICES】 12 months war.ranty from the date of purchase and lifetime free update are offered by this Automobile OBDII scan tool. Welcome to contact us via Q&A, email, or hotline, and our after-sale-service team for technical support.
, This product presentation was made with AAWP plugin.
Last update on 2026-05-12 / Affiliate links / Images from Amazon Product Advertising API