IK0700079 – SCR Vehicles Setting DEF Quality Faults due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV

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Document
ID:
IK0700079
Availability: ISIS, FleetISIS, NotSIR Revision: 14 Major System: EXHAUST Created: 9/22/2014 Current Language: English Last Modified: 6/20/2019 Other Languages: NONE Author: Pablo Guerrero Viewed: 18970
Hide Details Coding Information Copy Link Copy Relative Link Bookmark Add to Favorites Print Provide Feedback Helpful Not Helpful View My Bookmarks 60 12 Title: SCR Vehicles Setting DEF Quality Faults due to Crossed DEF Tank Coolant Lines or Inverted DEFTHV
Applies To: All SCR Vehicles CHANGE LOG
Dealers: Please refer to the change log text box below for recent changes to this article: 

06/20/2019 – Updated DEF Heater Valve Part Numbers
04/23/2018- Repaire broken link, added Export to vieweing countries
04/03/2018 – Author updated for feedback purposes 10/04/2017 – Added Figure 4 DEF Supply line graphic to step 3
09/27/2017 – Modified DEF line routing diagram on EPA 2017 graphic
08/08/2017 – Added A26 graphic 06/19/2017 – Added step 3. DESCRIPTION
This document will guide the user through determining the cause of fault code 3363-16 (FC1713) on vehicles equipped with SCR. BEFORE replacing any components, verify the DEF tank coolant lines are properly routed and the Diesel Exhaust Fluid Tank Heater Valve (DEFTHV) is facing the proper direction according to the procedure below. NOTE: The example used below is a typical DEF tank coolant line routing for a ProStar with an ISX. Other models may vary, but same failure mode may still exist. SYMPTOM(s) Diagnostic Trouble Code(s) & Dashboard Indicator Light(s): Cummins Fault Code Description Light
SPN 3363
FMI 16
1713 Aftertreatment 1 Diesel Exhaust Fluid Tank Heater – Data Valid But Above Normal Operating Range – Moderately Severe Level
Amber Warning Light
SPN 3364
FMI 10
4277 Aftertreatment Diesel Exhaust Fluid Quality – Abnormal Rate of Change Amber Warning Light
SPN 3364
FMI 18
3867 Aftertreatment Diesel Exhaust Fluid Quality – Data Valid But
Below Normal Operating Range – Moderately Severe Level
Amber Warning Light
SPN 3516
FMI 10 N/A DEF Quality Sensor abnormal rate of change Amber Warning Light
SPN 3516
FMI 18 N/A DEF Quality Low – Moderately Severe level Amber Warning Light SPN 4094
FMI 31 N/A NOx limits exceeded due to Insufficient Diesel Exhaust Fluid
Quality: Condition Exists Amber Warning Light
SPN 3364
FMI 4
1685 Aftertreatment Diesel Exhaust Fluid Quality Sensor Circuit – Voltage Below Normal or Shorted to Low Source Amber Warning Light
SPN 3516
FMI 4 N/A
Aftertreatment Diesel Exhaust Fluid Quality Sensor Circuit ­ Voltage Below Normal or Shorted to Low Source Amber Warning Light
Customer Observations or Concerns: Amber Warning Light ( )
SPECIAL TOOL(s) / SOFTWARE

NOT APPLICABLE
SERVICE PARTS INFORMATION
Kit Description Vehicle Family
Part
Number Quantity
Required
Ordering
Instructions
ISX/ISB Diesel Exhaust Fluid Tank
Heater Valve (DEFTHV) ALL 3856343C2 1 Source Locally
N13 Diesel Exhaust Fluid Tank Heater Valve
(DEFTHV) ALL 3998612C2 1 Source Locally
N9/10 Diesel Exhaust Fluid Tank
Heater Valve (DEFTHV) WorkStar 4029783C2 1 Source Locally
N9/10 Diesel Exhaust Fluid Tank
Heater Valve (DEFTHV) DuraStar 3856343C2 1 Source Locally
EPA 2017 Diesel Exhaust Fluid Tank Heater Valve (DEFTHV) ALL 4064184C1 1 Source Locally
DIAGNOSTIC STEP(s)
Step Action Decision 1
DIAGNOSTIC: Locate supply line. The DEFTHV should be installed on the DEF tank coolant supply line. Verify the lines are not crossed as shown in Figure 1 or Figure 2 below. Use this diagram for EPA 2013 vehicles:
Figure 1: DEF Tank Coolant Lines possibly Crossed at the Parker Fittings for EPA 2013 vehicles Use this diagram for EPA 2017 vehicles:
Yes: Go to Step 2.
No: Remove the DEF tank coolant lines from the Parker fittings and/or orient them properly Retest for 3363-16 (FC1713)
NOTE: Hose pinchers can be used to clamp the hoses so coolant does not drain out.

Figure 2: DEF Tank Coolant Line orientation for EPA 2017 vehicles
Are the DEF tank coolant lines routed properly (not crossed)?
Step Action Decision
2
DIAGNOSTIC: Verify the DEFTHV is facing the correct direction on the vehicle. Locate DEFTHV part number(In red box), see Figure 2
below. Correct direction of supply coolant flow is towards the DEF tank. NOTE: Electrical connectors of valve may face multiple directions.
Figure 3: DEFTHV Direction
Is the DEFTHV facing the proper direction on the vehicle?
Yes: Go to Step 3
If diagnosing fault codes other than 3363-16 (FC1713) refer to associated FCAP.
No: Reorient valve to correct direction, clear codes and retest.
Step Action Decision

coolant cannot flow backwards through the tank. Disconnect the DEF tank coolant supply line from the DEF sending unit (see supply line location in Figure 4 below).
Figure 4: DEF Sending Unit Line With the line disconnected, only residual coolant should exit the line. Allow 2 minutes for residual coolant to exit. If a constant, steady stream is passing through the valve, the valve is stuck open. After 2 minutes with the coolant line disconnected, is there a constant, steady stream of coolant exiting the supply line?
Yes: Replace the DEFTHV.
No: Retest for fault codes. If other fault codes are present, see associated FCAPs.
REPAIR STEP(s)
For removal and installation of DEF heater components, see Diesel Exhaust Fluid (DEF) System section in the appropriate Exhaust and Aftertreatment
System with DPF and SCR Service Manual. Links to these manuals are given in the resources section below. WARRANTY INFORMATION
Warranty Claim Coding: For inverted or failed DEFTHV: Group: 18160 – Coolant Lines / Hoses Noun: 793 – Tank DEF, Coolant Flow Valve For engine to coolant valve supply line: Group: 18160 – Coolant Lines / Hoses Noun: 750 – Hose, Engine to Coolant Valve Supply Line For coolant valve to tank supply line: Group: 18160 – Coolant Lines / Hoses Noun: 751 – Hose, Coolant Valve to Tank
Note: If problem is found, put iKnow article in claim comments section. OTHER RESOURCES
Master Service Information Site Service Repair Time Home Page Bus Exhaust Aftertreatment System with DPF and SCR Service Manual
Star and 9000 Series Exhaust Aftertreatment System with DPF and SCR Service Manual