WenmarOpen by Wenmar Pro

Service bulletin 520-14

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10141897
Published by NHTSA2018-06-18
Manufacturer's number520-14
Manufacturer's date2014-05-20
NHTSA componentEQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:ELECTRICAL; EQUIPMENT

NHTSA's summary

520-14 FMI 2 Soot Sensor Heater Faul

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories

Vehicles listed
FCCC XBP2014 to 2015
FCCC XCM2014 to 2015
FCCC XCP2014 to 2015
FREIGHTLINER BUSINESS CLASS M22014 to 2015
FREIGHTLINER CASCADIA2014, 2015
FREIGHTLINER COLUMBIA2014, 2015
FREIGHTLINER CORONADO2014, 2015
WESTERN STAR 47002014, 2015
WESTERN STAR 49002014, 2015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20176362017-12-18. Accessories
17V8100002017-12-15. EQUIPMENT
16V1430002016-03-09. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT:ELECTRICAL
15V1820002015-03-27. EQUIPMENT
20151332015-03-25. Accessories
14V5880002014-09-23. EQUIPMENT:ELECTRICAL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
TechTalk80482021-06-02. Service bulletin. Tech Talk continued discussion on Trailer ABS light on even when truck off.
CALWS32-0012021-05-25. Service bulletin. Customer Advisory Letter on Transverse Track Rod Tower Bracket
WSTCAE180-20202021-05-18. Service bulletin. Portland Truck Plant Paint Changes
WSTCAE177-20202021-05-18. Service bulletin. Meritor Transfer Case Updates
TSN 32-092021-05-13. Service bulletin. TSN for all Cascadia vehicles equipped with an Airliner rear suspension and the HD 6-piece bolted style forward suspension crossmember - Cascadia vehicles equipped with an Airliner rear suspension and the HD 6-piece bolted style forward suspension crossmember.
TSN 184842021-05-13. Service bulletin. Technical Service Note on Intermittent loss of power steering assist, LH turn only for Cascadia. Only intended for customers wishing to add a power steering oil cooler. For replacement of the gear reference TSN 46-01
TSN 31-112021-05-13. Service bulletin. TSN for all Cascadia vehicles equipped with a driveline center bearing midship support. Reference the following illustration - Customer complaints of loose fasteners at the bracket to channel bolted connection.
TSN 01-07c2021-05-13. Service bulletin. Beyond routing and wiring concerns, the PCC system as previously implemented suffers from two timing / reporting issues. One stems from the long boot-up time of the PCC module as compared to the CPC (a.k.a. the 6N4C timer issue), and the other stems from the potential of some PCC modules to lock-up (a.k.a. the NAND flash issue). The timer concern is considered to primarily affect EPA10 units (OBD13 already had a longer timer) and most can be resolved by simply refreshing the CPC software (even if an update is not available). The module lock-up software solution is currently being validated, so the PDC stock is not clean yet. However, lock-up is anticipated to only be present in approximately 8% of PCC modules (based on testing), so (ahead of a campaign), here are instructions on how to reactivate a system, verify proper operation, and drive service actions.
FTLCAE139-20132021-05-12. Service bulletin. INTERIOR STORAGE - Side Storage Bins Removed from Certain Cascadia Sleepers. SEAT BELTS - Height Adjustment Removed from Cascadia Passenger Side Seat Belt. FUEL TANKS - Fuel Tank Changes for 25" and 23" Tanks for Model Year 2015. TRANSMISSION - Correction to Allison 5th Gen Module 84L Definition Example. ADMINISTRATION - Model Year 2015 Changeover Date Established. APPENDIX A - 25" and 23" Diameter Cylindrical Fuel Tank Changes. APPENDIX B - Revised Allison 5th Gen New Modules and Definitions
SB831332021-05-10. Service bulletin. New H02 and H03 A/C lines.