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I have a 2012 freightliner Cascadia that the code spn005246…

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I have a 2012...

I have a 2012 freightliner Cascadia that the code spn005246 15 came on about 30 min into my drive time. the yellow light was flashing by the def gauge plus check engine light. What does this mean?

Mechanic's Assistant: What's the make/model/year of your truck? Engine type?

2012 Freightliner Cascadia DD15

Mechanic's Assistant: Anything else you want the truck mechanic to know before I connect you?

No, just how to fix it or does it need to go to the dealer

Submitted: 3 years ago.Category: Medium and Heavy Trucks
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Answered in 1 minute by:
1/31/2019
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago
roybelding
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 12,915
Experience: Shop Froeman for Freightliner Trucks
Verified

Hello, my name is ***** ***** sorry to see you are having issues. Give me a couple of minutes to review your issue and I will assist you

Roy

Good morning

Give me a few minutes to get the info for you.

Roy

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Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago

Was there any other codes? If not, have you tried a manual regen?

Roy

520.2 SPN 5246/FMI 15 - EPA10

Regulatory Fault Ignored - Derate On

For 2011 models, this code sets when the vehicle has been driven for 30 miles while a code is present for the DEF tank level, DEF metering valve, DEF pump, NOx sensors, Blocked DEF line, DEF quality, NOx efficiency, SCR harness and/or SCR sensor.

For 2010 models, this code sets when the vehicle has been driven for 10 hours or 500 miles while a code is present for the DEF tank level, DEF metering valve, DEF pump, NOx sensors, Blocked DEF line, DEF quality, NOx efficiency, SCR harness and/or SCR sensor.

SPN 5246/FMI 15

DescriptionRegulatory Fault Ignored - Derate On.

Monitored ParameterSCR and DPF sensors

Typical Enabling ConditionsAlways enabled

Monitor SequenceNone

Execution FrequencyAlways enabled

Typical Duration2 seconds

Dash LampsCEL

Engine Reaction25 percent derate

Verification

Parked SCR efficiency test for extended SCR faults

High idle regeneration for DPF and NOx faults

Check as follows:

Show/Hide Checkboxes

  1. Connect DiagnosticLink® . Go to step 2.
  2. Check for other emission-related fault codes. Are there any Selective Catalyst Reduction (SCR) or Diesel Particulate Filter (DPF) related fault codes present?
    1. Yes; diagnose and repair the emission-related fault codes first. Verify repair.
    2. No; perform the Selective Catalyst Reduction (SCR) efficiency test or high idle regeneration. Use DiagnosticLink to clear the code.

Printed Thu Jan 31 2019 02:20:26 GMT-0500 (Eastern Standard Time)

Copyright © 2019 by Detroit Diesel Corporation. All rights reserved.

Last updated on 07-25-2014

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Customer reply replied 3 years ago
the first code that came up was spn003361. then it went away then the second code started. the spn005246. it wont let me regen. when I got to the yard I tried to regen and it wouldn't do it
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago

OK, there are 9 possibles for the 3361. Do you have the FMI?

That all points to the metering block on the 1 box.

Have you done a forced regen before so you are familiar with how to do it?

Roy

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Customer reply replied 3 years ago
ive regen once in the 3 months ive had this truck. not a forced on tho
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago

Do you have a stick or auto trans?

Roy

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Customer reply replied 3 years ago
stick
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago

OK, Have you tried this process?

Engine running, push the clutch pedal down and let up. Then release the parking brake and apply it. Then switch the hig/low range switch.

Then hold the regen button for 5 seconds. That should put it in regen

Roy

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Customer reply replied 3 years ago
ok. i will try that when i go to work. if no luck, i guess ill be on here again. thanks
Technician: roybelding, Shop Foreman Freightliner trucks replied 3 years ago

Sounds like a plan.

Roy

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