NHTSA ID Number: 10085304
Manufacturer Communication Number: TSB130182-041414
TSB/Document Date: 2016-12-01
Summary
THIS TECHNICAL SERVICE BULLETIN DESCRIBES THE VERIFICATION AND RESOLUTION OF FAULT CODES 1921, 1922, 1981, 3375 AND 3376 BEING SET ON CERTAIN ENGINES INSTALLED IN PACCAR
CHASSIS DUE TO INCORRECT GROUND WIRING IN THE DIESEL EXHAUST FLUID (DEF) SYSTEM WIRING HARNESS. THIS IS AN UPDATE OF A PREVIOUS COMMUNICATION.
PACCAR™ Chassis with 2013 CM2350 Heavy Duty and MidRange Engines Setting Fau... Page 1 of 4
Technical Service
Bulletin Number
TSB130182
Revision Level
Date
Group Number
Technical Service Bulletin
Subject
PACCAR™ Chassis with 2013 CM2350 Heavy Duty and MidRange Engines Setting Fault
Codes 1921, 1922, 1981, 3375, and 3376.
Issue
Affects Cummins® CM2350 ISX15, ISX12, ISL(PX9) and (ISB)PX7 in PACCAR™ Chassis.
Chassis List:
PACCAR™ Chassis List
Peterbilt™
Next Generation Product
(NGP)
579 and
567
T680 and T880
Legacy
Not
Affected
W900, T700, T660, T800, T470, T440, T370,
T270, and T170
NOTE: See attached engine serial number (ESN) list for affected units.
There are two ground wires in the diesel exhaust fluid (DEF) Supply module wiring harness. A
green wire (GRN 3231) is the ground wire for the DEF pressure sensor ground return. A white
wire (WHI 3232) is the ground wire for the DEF supply module tank heater ground return. The
ground wires are installed in the wrong connector cavities on some CM2350 PX7, PX9, ISX12
and ISX15 engines. When the ground wires are installed incorrectly and the DEF supply
module heater turns on, Fault Codes 1981,1921,1922, 1981, 3375, and 3376 can occur.
Verification
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2013/tsb130182.html
5/2/2014
PACCAR™ Chassis with 2013 CM2350 Heavy Duty and MidRange Engines Setting Fau... Page 2 of 4
The illustration below depicts the wires in the wrong locations. The green wire (GRN 3231)
should be located in the number 4 connector cavity. The white wire (WHI 3232) should be
located in the number 6 connector cavity.
Resolution
Contact an original equipment manufacturer (OEM) PACCAR™ dealer for repair instructions.
Please reference Kenworth™ Document 43-035 or Peterbilt™ Document FRN 1213-1.
Relocate the wires in the connector. The green wire should be inserted in cavity number 4. The
white wire should be inserted in cavity number 6.
Follow these steps:
1. Examine the engine control module (ECM) for Fault Codes 1921, 1922, 1981, 3375, and
3376. If these fault codes are active, move to Step 2.
2. Determine the truck build date. If the truck was built in September, October, November,
or December of 2013, proceed to Step 3. If not, follow the published troubleshooting
trees. (This step may fluctuate; PACCAR™ is attempting to understand the dates for
affected units).
3. Determine the DEF tank harness part number. If the part number is P92-8255 Rev C,
proceed to Step 4. If not, follow the published troubleshooting trees.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2013/tsb130182.html
5/2/2014
PACCAR™ Chassis with 2013 CM2350 Heavy Duty and MidRange Engines Setting Fau... Page 3 of 4
4. Disconnect the DEF tank harness from the DEF supply module. PACCAR™
nomenclature for this harness is the DEF tank harness. Examine connector pins 4 and 6.
Pin 4 should be a green wire and Pin 6 should be a white wire. If the pins are incorrect,
swap the pins at the DEF supply module connector. Connector P931 (below) shows the
correct pin outs for pins 4 and 6.
Warranty Statement
The information in this document has no effect on present warranty coverage or repair
practices, nor does it authorize TRP or Campaign actions.Information Only - OEM Related
Matter Not Covered By Cummins® - Contact Appropriate OEM Dealer or OEM Representative
For Additional Information
Attachments
Click here to see 140407_paccar_esn_list.xls
Click here to see peterbilt_field_repair_12131.pdf
Click here to see peterbilt_frn_12131_procedures_r1.pdf
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2013/tsb130182.html
5/2/2014
PACCAR™ Chassis with 2013 CM2350 Heavy Duty and MidRange Engines Setting Fau... Page 4 of 4
Document History
Date
2013-12-30
2014-2-3
2014-4-14
Details
Module Created
none
none
Last Modified: 16-Apr-2014
Copyright © 2000-2010 Cummins Inc. All rights reserved.
https://quickserve.cummins.com/qs3/pubsys2/xml/en/tsb/2013/tsb130182.html
5/2/2014
- Advanced VCI Box, Industry-leading J2534 Pass-Thru...
- High-Speed OEM-Level Diagnostics & Programming: Unlock true...
- Coverage for 17 Car Brands & Ultra Reliability: Works...
- User-Friendly RLink Platform & Expert Support: TOPDON’s...
- 6.6 ft USB-C Cable & Portable Storage Case: The RLink J...
Last update on 2026-06-12 / Affiliate links / Images from Amazon Product Advertising API
If the PDF is very large, it may not load in the preview below.
Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.
If the TSB PDF does not show, download or view it on the NHTSA Website.
Click on the (+) Plus Sign
Then Click on Associated Document(s)
Search NHTSA Database for Recalls
Search NHTSA Database for Vehicle Investigations
View Latest Vehicle Investigations
Search NHTSA Database for Vehicle Complaints
View Latest Vehicle Complaints
TSB/Document ID: TSB130182-041414
Replacement Service Bulletin Number:
MFR Communication Date: 2014-04-16
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- OBD2 Bluetooth Scanner Lifetime Update: Ediag Elite offers revolutionary Advantage Lifetime Updates with unlimited access to the superior 15+ reset service, bidirectional testing and full system diagnostics.The Ediag Elite is an excellent Bluetooth OBD2 scanner diagnostic tool ideal for DIY's and private car owners.
- Bidirectional Test for Quickly Locating Problems: The Bidirectional Scan tool allows you to send commands directly from your smartphone to your vehicle for active testing. This feature helps to quickly narrow down problems such as air conditioning clutches, windows, doors, sunroofs, etc., reducing diagnostic time for mechanics and helping DIY users locate faults more easily. In addition, Ediag Elite provides fault analysis and repair guidance to help you solve problems efficiently.
- 15+ Maintenance Resets: The current version introduces 15+ popular special features: Oil Reset, Headlight Matching, Bleeding Reset, TPMS Reset, BMS Reset, Gear Box Relearn, Throttle Learning, Injector Coding, SAS Reset and more special functions in system diagnose menu. These functions make it easy for owners to carry out the necessary maintenance and servicing, ensuring that your vehicle stays in top condition, prolonging its service life and preventing common problems and breakdowns. Note: The Special function vary by model& year, Reach us check compatibility.
- Wide Compatibility CANFD & FCA
Autoauth: Compatible with GM, Ford, Toyota, Chrysler, Honda, Mazda, Nissan, Mitsubishi, Hyundai, KIA with standard OBD2 port from 1996 to newer. More than 100+ car brands and features will be released gradually. Newest Ediag Elite scanner supports CANFD Protocol and FCA cars. Note: Coverage may vary on different vehicle by model& year ,Please contact us to confirm compatibility before purchase. - Perfect for Monitoring The Health of Your Vehicle: Ediag Elite is designed to make vehicle maintenance simple and efficient. With intelligent Auto VIN quick recognition, it is easy to connect to your car without the need for manual input. Real-time data is visualized in a variety of formats, including graphs, numeric, meter displays and clear 4-in-1 data charts, allowing you to effortlessly monitor real-time data. Data logging/reporting is available for playback and further analysis
- No Annual Fees & 2026 Upgraded CAN FD: Why pay $199/year or more for updates? The 2026 newest Kingbolen K7 obd2 scanner features have been upgraded to Lifetime Updates without subscription fees, saving you significant costs in the long run. K7 scan tool also adds the CAN FD protocol for the latest GM models (2019+), enabling faster data transfer, reducing the risk of undetected errors
- 2026 Newest Top-tier Car Scanner: Kingbolen K7 diagnostic scan tool is equipped with most capabilities for daily repair/maintenance: Wireless diagnosis via Bluetooth, Bidirectional Test, ECU Online/Offline Code, 31+ Resets, PMI for Ford, Lincoln, Mazda, Global version for 100+ brand vehicles and 17 languages, no area limit, FCA AutoAuth
- OE-Level Full Systems Scan Tool: K7 professional diagnostic scanner with Auto Vin can do one-click to scan ECUs on most of vehicles, like pcm, ecm, eps, bcm, tpms, sas, a/c system... to read/clear code, view live data, freeze frame, read ecu info. 4-in-1 data stream graphics can make data viewing more intuitive. Detailed diagnostic reports will help you easily master the car situation as it can be shared by bluetooth or email! Adding workshop information can help your customers to know more
- Bidirectional Test/Active Test & ECU Code: Stop guessing and start fixing. Bidirectional scan tool Kingbolen K7 can perform real active test that can send commands to the vehicle's ECU to drive the actuators to work, like window, rear mirrors, sunroof, door, solenoids, wipers, headlamp, etc, helping you quickly find out bad parts and pinpoint faulty issues. K7 bidirectional scanner will be a good choice to save money and time on car repairs when performing complex maintenance and repair
- 31 Reset Functions: Avoid expensive dealership visits for simple services. Experience tells us that just a small repair service may cost a lot of money. Kingbolen K7 is a professional diagnostic scanner with 31 common maintenance services like Oil /SAS/EPB/TPMS Reset, Battery Matching, ABS Bleeding, Injector Code, etc. It effectively handles most of the car reset and relearning jobs, perfect for experienced DIYers and mechanics. Note: Functions in the menu vary across vehicles. Kindly check the compatibility before purchase
- 【Cost-effective Diagnostic Scan Tool】Lifetime updates without fee, No subscription fee required, No IP restrictions, Ediag Elite bluetooth scanner stands out. It can perform in-depth Full System diagnostics,15+ Reset Services, powerful Active Test, CANFD & FCA AutoAuth. Connect your phone via Bluetooth for diagnosis, providing a faster, smarter and smoother diagnostic experience. Easy to put in pocket, convenient to carry, keep track of the car's status anytime, anywhere. Best bang for your bucks.
- 【15+ Reset Service, Easy Problem Solving】 KINGBOLEN Ediag Elite obd2 scanner diagnostic scan tool comes with 15+ professional reset functions, including: Oil Reset, ABS Bleeding, Injector Code, SAS Reset, TPMS Reset, BMS Reset, AFS Reset, Sunroof Calibration, Brake Reset and more special functions in system diagnose menu. The ideal bluetooth scanner for mechanics and DIY enthusiasts, which can save unnecessary maintenance costs and significantly shorten repair time.
- 【Comprehensive Full Systems Diagnostic】 The Ediag Elite obd2 scanner bluetooth supports full system In-Depth diagnosis. It can read/clear fault codes, read real-time data/freeze frame, module information, and perform testing and reset functions for ECM, BCM, ABS, SRS, TPMS, TCM, BMS, SAS, A/C & RTM systems ect. It works with most car models after 1996, cover more than 150+ car brands. Supports 22 global languages for your convenience(EN, FR, ES, DE, IT, RU, PT, JP, TU...)
- 【Powerful Bidirectional Scan Tool & Active Test】 The obd2 code reader for Ediag Elite can perform real time active test that can send commands to the vehicle’s ECU to drive the actuators to work, such as turn on the radiator fan, modulate the throttle, open/close windows, etc. It can help you quickly find out the bad components and the cause of the fault, which can save you a lot of time. With BT 5.2 wireless connectivity, you can enjoy wireless diagnostics up to 33 feet.
- 【FCA AutoAuth & CANFD Compatibility】 Ediag Elite scan tool offers support with FCA Gateway Access, allowing you to perform protected functions on FCA vehicles, including Chrysler, Dodge, Jeep, Alfa Romeo, Fiat vehicles, etc.(Note:just allows you to access the FCA, but need to have your own FCA account) Supports the CAN-FD protocol, provide high-speed vehicle diagnostic communication and data transfer, working perfectly on GM vehicles produced after 2020, saving $100 to buy a CAN FD adapter.
Last update on 2026-06-12 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.