How To Fix Code Eec 61

If your Freightliner DD13 DD15 won't accelerate past 55 MPH there may be a few reasons as to why y'all are experiencing thi s result . The reason why F reightliner  puts you into an engine derate or reduces your  MPH is because they want yous to correct the issue every bit soon equally possible or harm may occur to your aftertreatment s ystem.

M ain culprit  for this 55 MPH Speed Limit = O nset  of a ftertreatment pr oblems

When you are limited 55 MPH you lot tin can be confident that it is most probable due to your aftertreatment system.

• Symptoms
• DEF Light Flashing (RED)
• DEF Guess Empty (Possible )
• 25% Low P ower that limits you lot to only get 55 K PH
• Once this happens yous are racing against fourth dimension earlier your truck limits you to v MPH

• Causes
• Components that can crusadea 55 MPH derate
• DEF Fluid Ran out - (Empty tank) - Refill as presently as possible.
• DEF Pump Failure - This is the heart of your system that pumps DEF fluid into the 1box. If this pump fails,  then you must replace information technology for the system to work properly.
• NOx Sensor Failure  - NOx Inlet and NOx Outlet sensors are located on your 1box. These sensors measure how efficient your emission system is and will cause a derate conditio n if they are faulty or have incorrect readings.
• ACM (Aftertreatment Control module)Not P owered  - This causescommunication mistake s  betwixt CPC & MCM & ACM.
• AftertreatmentH arness R ubbed T hrough - This can cause random faults in your emission system.
• Aftertreatment system n eeds to be updated by the manufacturer.
• Ensure your software programme is upwards to date.

Engines that are affected

• Detroit Diesel DD15
• Detroit Diesel fuel DD13

Years and east missions

• 2011 - 2021 Twelvemonth model
• EPA10
• GHG14
• GHG17

Models that are affected

• Freightliner Trucks - All models that use this engine
• Freightliner Cascadia (Most Pop)
• Western Star - All models that use this engine

Terms to know

• SA (Source Address)
• Relays information on which module is generating the fault code you have.

• MCM (Motor Control Module)
• This is one of the most of import components to your engine. Without this module your engine will not starting time.
• MCM controls and regulates all your fuel, timing, EGR  and emission components.
• Source 00 or EEC 00 ( f ault c ode detail)
• Located on your engine .

• CPC (Mutual Powertrain Module)
• This module will regulate certain parameters with your vehicle ' s speed and your cruise control.
• CPC ties the MCM to your aftertreatment computers through a proprietary datalink.
• Source 1 or EEC 01 ( fault c ode item)
• Located inside dash panel inside the ca b .

• ACM (Aftertreatment Control Module)
• This module controls your DPF and your DEF organization s .
• ACM regulates all the mistake codes that are tied to your aftertreatment system. If you accept any fault codes coming from this source address,  and so it is relaying information straight to your dashboard or your diagnostic scan tool.
• Source 61 or EEC 61 (error code item)
• Located on your aftertreatment 1box.

What mistake codes will trigger this derate?

If yous drive with the post-obit error codes, you may enter a 5 MPH derate

• ENG 1 SPN 1231 F ail nine - ACM Not communicating with your MCM / CPC
• EEC 61 SPN 1231 F ail ix - ACM Not communicating with your MCM / CPC
• EEC 61 SPN 625 F ail nine - ACM Non communicating with your MCM / CPC
• EEC 61 SPN 4364 Neglect 1 - Selective Goad Reduction Nox Conversion Very Depression
• EEC 61 SPN 4364 F ail eighteen - Selective Goad Reduction Nox Conversion Low
• EEC 61 SPN 3364 F ail ii - Improper DEF Quality
• Any other Aftertreament fault codes  tied to DEF
• NOx Conversion fault codes - More details in this blog post about SCR NOx efficiency problems.

   *Seek out a repair facility who tin can help you in the case you are limited to 5MPH.

2017+ T rucks - GHG17

If yous have a 2017 or n ewer F reightliner or W estern  Due south tar  truck one of the error code s beneath may be tied to your derate result. Yous should also brand sure that your software is upwards to date on your engine and a ftertreatment  computers because the fault codes can also appear if your software is non updated.

If the  following  fault codes do non articulate afterward you accept validated that the problem  has been corrected, then you may need to replace your MCM . We have seen instances where these fault codes latch on and replacement of the MCM is ne cessary .

• EEC 0 SPN 521049 FMI 31
• DEF Inducement CEL Lamp Active
• This fault c ode s ets w hen t here is a c ode pr esent for the following:
• Diesel Exhaust Fluid (DEF) Tank Level
• DEF Dosing Unit
• DEF Pump
• NOx Sensors
• Blocked DEF Line
• DEF Quality
• NOx Efficiency
• Selective Catalyst Reduction (SCR) Harness
• SCR Sensor
• Monitored Parameters
• SCR and Diesel fuel Particulate Filter (DPF) Sensors
• Engine Reaction
• 25 % Derate, v ehicle due south peed 50 imited to v five MPH due to power derate
• Dash Lamps
• DEF l amp is on
• Verification
• Parked SCR  east fficiency t est for e xtended SCR f aults
• High i dle r egeneration for DPF and NOx fa ults
• Forced DPF r egen
• EEC 0 SPN 521050 FMI 31- MCM (Motor Control Module)
• DEF Inducement C EL Lamp Activ e
• This fault c ode appears a fter SPN 521049/FMI 31 and the s peed li mit has been r educed to 55 MPH ( xc KPH)
• Monitored Parameters
• SCR and Diesel Particulate Filter (DPF) south ensors
• Engine Reaction
• xl% Derate, Vehicle southward peed l imited to 5 MPH (8 KPH ).
• Dash Lamps
• Bank checke ngine l ight  (CEL)  on
• Verification
• Parked SCRdue east fficiency t est for eastward xtended SCR f aults
• High Idler egeneration for DPF and NOx f aults
• Forced DPFr egen

• EEC 0 SPN 5210 52  FMI 31
• DEF Inducement CEL Lamp Agile
• Thiserror c ode s ets a fter SPN 521049/FMI 31 and the s peed  l imit has been re duced to 55 mph  (ninety KPH) .
• Monitored Parameters
• SCR and Diesel Particulate Filter (DPF)southward ensors
• Engine Reaction
• iv0 % Derate, Vehicle due south peed l imited to 5 MPH (eight KPH ).
• Dash Lamps
• Check Engine Light(CEL) on
• Verification
• Parked SCRef ficiency t est for east xtended SCR f aults
• Highi dle r egeneration for DPF and NOx f aults
• Forced DPFr egen

What tin you do? (DIY)

• Check your DEF fluid
• Brand sure  that information technology 'southward topped off
• Expect up the fault lawmaking that is on your dashboard
• I f you don't have a way to look upward a fault code,  you may need an additional diagnostic tool such as OTR Diagnostics to pull this fault code  from your truck
• Clear the mistake codes
• You articulate the codes with a dealer level service tool,  or yous can utilise OTR Diagnostics or the OTR R eset Tool to perform the resets.
• Perform a f orced DPF service regen
• When y'all perform a  forced DPF regen on your truck it checks all the sub-systems that are in identify to make sure that everything is working properly
• Y'all can perform a forced DPF regen with a dealer level service tool, or y'all can use OTR Diagnostics or the OTR Reset Tool.
• There are quite afew fault codes that crave you to run a forced DPF r egen to verify  that the arrangement is working
• Nosotros have seen a few scenario'due south  where resetting the mistake codes and performing a forced DPF regen will articulate these k host codes that hinder your truck from going over 55 MPH

Helpful Video s

Fixing DEF Quality Error Codes

• https://www.youtube.com/scout?v=zr5em086Tv4
• https://www.youtube.com/watch?v=esuK3chswRc

We hope you find this web log postal service useful if you are stuck in a derate or if you are only looking to educate yourself in the example that you find yourself stuck in a derate.

Until side by side time 👋
Stay safe, stay healthy, & God bless.

How To Fix Code Eec 61,

Source: https://otrperformance.com/blogs/quick-tips/freightliner-dd13-dd15-wont-accelerate-past-55-mph

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