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Have a 2013 freightliner. Won't stay running. Has the

Have a 2013 freightliner. Won't...
Have a 2013 freightliner. Won't stay running. Has the following codes:
SPN 3216 FMI 4
SPN 3216 FMI 20
SPN 1569 FMI 31
Seems to be related to the SCR. What is best approach.
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Answered in 1 minute by:
10/28/2016
Technician: roybelding, Shop Foreman Freightliner trucks replied 5 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 ***** ***** I will be glad to assist you. please allow me a couple of minutes to gather some basic info.

Roy

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Technician: roybelding, Shop Foreman Freightliner trucks replied 5 years ago

ok, got some info for you to view.

316.2  SPN 3216/FMI 4 - EPA10 - GHG14

Selective Catalyst Reduction Inlet NOx Sensor Circuit Failed Low

SPN 3216/FMI 4

DescriptionThis Codes Sets When There is a Short to Ground on the SCR NOx Inlet Circuit Between the Sensor and the CPU

Monitored ParameterSCR Inlet NOx Sensor

Typical Enabling ConditionsDewpoint Enabled

Monitor SequenceNone

Execution FrequencyContinuous When Enabling Conditions Met

Typical Duration2 Seconds

Dash LampsMIL, CEL

Engine ReactionNone

VerificationParked Regen

Check as follows:

Show/Hide Checkboxes

  1. Disconnect the SCR inlet NOx sensor.
  2. Inspect the SCR inlet NOx sensor and harness side connector for bent, spread, or corroded pins. Is any damage found?
    1. Yes; repair as necessary. Verify repairs.
    2. No; replace the SCR inlet NOx sensor. Refer to section "Removal of the GHG14 Selective Catalytic Reduction Inlet NOx Sensor" .
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Technician: roybelding, Shop Foreman Freightliner trucks replied 5 years ago

are you there

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Customer reply replied 5 years ago
Just to be sure: do you have picture of NOx sensor location?
Technician: roybelding, Shop Foreman Freightliner trucks replied 5 years ago

do you still need help

roybelding
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 12,915
Experience: Shop Froeman for Freightliner Trucks
Verified
roybelding and 87 other Medium and Heavy Trucks Specialists are ready to help you
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Customer reply replied 5 years ago
Replaced sensor. Harness checks out. Still goes into limp mode. Plan to reset/reprogram computer.
Technician: roybelding, Shop Foreman Freightliner trucks replied 5 years ago

thank you

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roybelding
roybelding
roybelding, Shop Foreman Freightliner trucks
Category: Medium and Heavy Trucks
Satisfied Customers: 12,915
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Experience: Shop Froeman for Freightliner Trucks

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