TSB 21-2336 DEF related faults.

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TECHNICAL SERVICE BULLETIN
3.0L / 6.7L - Illuminated MIL With Various Reductant System Related DTCs
21-2336
27 September 2021​
This bulletin supersedes 19-2315. Reason for update: New Part/Procedure For Same Condition
Model:
Ford
2018-2020 F-150
Engine: 3.0L
2017-2019 F-Super DutyEngine: 6.7L
2016-2019 F-650/F-750Engine: 6.7L
Summary

This article supersedes TSB 19-2315 to update the vehicles affected, Issue, Action, Service Procedure and Part List.
Issue: Some 2018-2020 F-150 vehicles built on or before 1-Apr-2020 equipped with a 3.0L diesel engine, 2017-2019 F-Super Duty vehicles built on or before 30-Oct-2019 equipped with a 6.7L engine and 2016-2019 F-650/F-750 vehicles built on or before 30-Oct-2019 equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P21DD, P20BA. P20B9, P204C, P208A, P208B, P208C, P203B, P205B, P21CD and/or U02A2 in the powertrain control module (PCM). This may be due to water intrusion within connectors C3613 and/or C4851/C3610 on the reductant harness going to the reductant pump/heater assembly and the reductant level sensor/quality module. To correct the condition, follow the Service Procedure steps to replace the reductant tank harness, the reductant pump/heater assembly and/or the reductant tank.
Action: Follow the Service Procedure steps to correct the condition on vehicles that meet all of the following criteria:

• One of the following vehicles:
- 2018-2020 F-150 built on or before 1-Apr-2020- 2017-2019 F-Super Duty built on or before 30-Oct-2019- 2016-2019 F-650/F-750 built on or before 30-Oct-2019

• 3.0L diesel or 6.7L diesel engine
• DTCs P21DD, P20BA. P20B9, P204C, P208A, P208B, P208C, P203B, P205B, P21CD and/or U02A2 stored in the PCM


NOTE: Part quantity refers to the number of that service part number required, which may be different than the number of individual pieces. Service part numbers contain 1 piece unless otherwise stated. "As Needed" indicates the part is required but the number may vary or is not a whole number; parts can be billed out as non-whole numbers, including less than 1. "If Needed" indicates the part is not mandatory.
Parts
Part Number Description Quantity
KC3Z-5J250-AKC3Z-5J250-A​
-​
Inboard Frame Mounted Reductant Tank (F-Super Duty Pickup)
1​
HC3Z-14407-AHC3Z-14407-A​
-​
Inboard Frame Mounted Reductant Tank Harness (F-Super Duty Pickup)
1​
KC3Z-5J250-BKC3Z-5J250-B​
-​
Outboard Frame Mounted Reductant Tank (F-Super Duty Chassis Cab)
1​
HC3Z-14407-BHC3Z-14407-B​
-​
Outboard Frame Mounted Reductant Tank Harness (F-Super Duty Chassis Cab)
1​
JL3Z-5J250-AJL3Z-5J250-A​
-​
Reductant Tank (F-150)
1​
JL3Z-14407-AJL3Z-14407-A​
-​
Reductant Tank Harness (F-150)
1​
FC4Z-5J250-HFC4Z-5J250-H​
-​
Reductant Tank (F-650/F-750)
1​
FC4Z-14407-CFC4Z-14407-C​
-​
Reductant Tank Harness (F-650/F-750)
1​
HC3Z-5J229-BHC3Z-5J229-B​
-​
Reductant Tank Pump/Heater Assembly (All Vehicles)
1​
W520804-S439W520804-S439​
Package Contains 4 Pieces, 1 Piece Required​
Reductant Tank Retaining J-nut (F-Super Duty)
1​
W719567-S439W719567-S439​
Package Contains 4 Pieces, 2 Pieces Required​
Reductant Tank Retaining J-nut (F-Super Duty)
1​
W503300-S450W503300-S450​
Package Contains 4 Pieces, 4 Pieces Required​
Reductant Tank Retaining Strap Bolts (F-650/F-750)
1​
W520803-S439W520803-S439​
Package Contains 4 Pieces, 4 Pieces Required​
Reductant Rank Retaining Strap J-nuts (F-650/F-750)
1​
Parts To Inspect And Replace Only If Necessary
W716694-S300W716694-S300​
-​
Lower Reductant Tank Cover Access Door Retainer (F-Super Duty, F-150)
If Needed​
PM-27-GALPM-27-GAL​
1 Gallon​
Diesel Exhaust Fluid (Only If The Reductant Tank Is Replaced)
If Needed​
PM-27-JUGPM-27-JUG​
2.5 Gallon​
Diesel Exhaust Fluid (Only If The Reductant Tank Is Replaced)
If Needed​

Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Emissions Warranty/Service Part Warranty (SPW)/Special Service Part (SSP)/Extended Service Plan (ESP) coverage. Limits/policies/prior approvals are not altered by a TSB. NVLW/Emissions Warranty/SPW/SSP/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.
Labor Times
Description Operation No. Time
2017-2019 F-250 - F-550 6.7L DIT Pick Up: Retrieve DTCs, Inspect Connectors And Replace Harness (Do Not Use With Any Other Labor Operations)
212336A​
0.6 Hrs.​
2017-2019 F-250 - F-550 6.7L DIT Pick Up: Retrieve DTCs, Inspect Connectors And Replace Harness And The Reductant Pump /Heater Assembly Do Not Use With Any Other Labor Operations)
212336B​
1.5 Hrs.​
2017-2019 F-250 - F-550 6.7L DIT Pick Up: Retrieve DTCs, Inspect Connectors And Replace Harness And The Reductant Tank Assembly (Do Not Use With Any Other Labor Operations)
212336C​
1.3 Hrs.​
2017-2019 F-350 - F-550 Chassis Cab 6.7L DIT: Retrieve DTCs, Inspect Connectors And Replace Harness (Do Not Use With Any Other Labor Operations)
212336D​
0.6 Hrs.​
2017-2019 F-350 - F-550 Chassis Cab 6.7L DIT: Retrieve DTCs, Inspect Connectors And Replace Harness And The Reductant Pump /Heater Assembly Do Not Use With Any Other Labor Operations)
212336E​
1.6 Hrs.​
2017-2019 F-350-F-550 Chassis Cab 6.7L DIT: Retrieve DTCs, Inspect Connectors And ReplaceHarness And The Reductant Tank Assembly (Do Not Use With Any Other Labor Operations)
212336F​
1.4 Hrs.​
2016-2019 F-650/F-750 6.7L DIT: Retrieve DTCs, Inspect Connectors And Replace Harness (Do Not Use With Any Other Labor Operations)
212336G​
0.5 Hrs.​
2016-2019 F-650/F-750 6.7L DIT: Retrieve DTCs, Inspect Connectors And Replace Harness And The Reductant Pump /Heater Assembly Do Not Use With Any Other Labor Operations)
212336H​
1.6 Hrs.​
2016-2019 F-650/F-750 6.7L DIT: Retrieve DTCs, Inspect Connectors And Replace Harness And The Reductant Tank Assembly (Do Not Use With Any Other Labor Operations)
212336J​
1.4 Hrs.​
2018-2020 F-150 3.0L Diesel: Retrieve DTCs, Inspect Connectors And Replace Harness (Do Not Use With Any Other Labor Operations)
212336K​
0.6 Hrs.​
2018-2020 F-150 3.0L Diesel: Retrieve DTCs, Inspect Connectors And Replace Harness And The Reductant Pump /Heater Assembly Do Not Use With Any Other Labor Operations)
212336L​
1.4 Hrs.​
2018-2020 F-150 3.0L Diesel: Retrieve DTCs, Inspect Connectors And Replace Harness And The Reductant Tank Assembly (Do Not Use With Any Other Labor Operations)
212336M​
1.4 Hrs.​
Repair/Claim Coding
Causal Part:14407
Condition Code:49
Service Procedure
NOTE: For DTCs P21DD, P20BA, P20B9, P204C, P208A, P208B, P208C this can indicate a concern with connector C3613. For DTCs P21CD, P203B, P205B and/or U02A2 this can indicate a concern with connector C4851 (F-Super Duty) or connector C3610 (F-150, F-650/F-750).
1. Disconnect and inspect C3613 (16 pin connector) at the reductant pump/heater assembly and C4851/C3610 (4 pin connector) at the reductant level sensor/quality module for signs of corrosion. Refer to the Workshop Manual (WSM), Section 303-08 and the Wiring Diagram.
(1). Inspect both the harness side and component side of both connectors for signs of water intrusion. Focus on all pins at connector C3613 and pins 1 and 4 at connector C4851/C3610. Inspect for signs of:
• Visible green corrosion on multiple terminals on the harness side of connector C3613. (Figure 1)
Figure 1
imagen2.dll

• Corroded pins on the reductant pump/heater assembly at connector C3613. (Figure 2)
Figure 2
imagen2.dll

• Visible green corrosion on the reductant level sensor/quality module side of connector C4851/C3610. (Figure 3)
Figure 3
imagen2.dll

• Visible green corrosion on the harness side of connector C4851/C3610. (Figure 4)
Figure 4
imagen2.dll

2. Follow the appropriate procedure:
(1). If no signs of corrosion or water intrusion are present on either connector or component, replace the reductant tank harness only.
(2). If signs of corrosion or discoloration are present on the reductant tank harness connector C3613 or reductant pump/heater assembly perform the following:
• If there is corrosion or discoloration on the reductant tank harness connector only and not on the reductant pump/heater assembly, only replace the reductant tank harness.
• If there are signs of corrosion or discoloration on the reductant pump/heater assembly, replace both the reductant tank harness and the reductant pump/heater assembly. Refer to WSM, Section 303-08.
(3). If signs of corrosion or discoloration are present on the reductant tank harness connector C4851/C3610 or the reductant level sensor/quality module perform the following:
• If there is corrosion or discoloration on the reductant tank harness connector only and not the reductant level sensor/quality module, only replace the reductant tank harness.
• If there are signs of corrosion or discoloration on the reductant level sensor/quality module, replace both the reductant tank harness and the reductant tank (reductant level sensor/quality module built in).
 
My dad new truck less than 250 miles. I think your a live bulletin is what’s wring

But in plain English. Whats wrong?? I’ll have to take to the dealer this week I presume.
 

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