National Institute for Automotive Service Excellence. Working to improve the quality of vehicle repair and service by testing and certifying automotive professionals. Corporate Partner

Freightliner 122sd

Shawn Technician Pennsylvania Posted   Latest  
Question
Updated
Electrical
Heavy Duty
2015 Freightliner Coronado 132 12.7L (Series 60) — 3ALHGNDV4FDGE0989

Have these two codes on a unit today. SI wants others codes checked and software ware checked. No other codes and common powertrain controller software is up to date. Replace CPC next step. Anyone ever saw this? Would it be worth my time pulling diagrams and checking circuits at the CPC. 

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Joel Diagnostician
California
Joel
 

What are the codes?

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Shawn Technician
Pennsylvania
Shawn Update
 

SPN628 FMI2 and SPN609 FMI12. Sorry not sure why they didn't show up. Put them on the DTC.

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Chris Owner/Technician
Indiana
Chris
 

Try this site spnfmi​.​com/spn-codes It has all the SPJN codes listed/

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Josh Diagnostician
Pennsylvania
Josh
 

Where are you getting these codes from? Is this a glider?

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Shawn Technician
Pennsylvania
Shawn
 

They are in the MCM. No glider. Roll off. Truck runs fine. Frieghtshacker is back ordered intergalactically on CPC's

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Jon Owner/Technician
California
Jon
 

Check the ambient temp sensor in the drivers mirror for opens or shorts for the 609. Ignore the 628 until all other faults are corrected.

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National Institute for Automotive Service Excellence. Working to improve the quality of vehicle repair and service by testing and certifying automotive professionals. Corporate Partner