NHTSA ID Number: 11022737
Manufacturer Communication Number: SD-03-1189_EN_004
TSB/Document Date: 2025-09-05
Summary
Service Data - Bendix
® Intellipark® Electronic Park Brake (EPB) System
3
4
14
1
8
6
13
12
10
5
J2
PVM
PVM
J1939
Backbone
IGN
Primary
Battery
Stop Lamp Switch
(discrete option if
not available on
CAN)
Fuse Panel
GND
GND
Door Switch
(discrete option if
not available on
CAN)
Passenger Door
Switch (discrete
option if not
available on CAN)
Figure 8 – Solo Vehicle Variant
21
Occupancy Sensors
PVM Feedback Connections
The DECU supports occupancy sensors to determine if
the driver's seat is occupied.
The PVM contains the exhaust and delivery solenoids for
the power vehicle (tractor) and the towed vehicle (trailer).
The DECU monitors the PVM state via feedback signals.
The DECU supplies +5VDC to the external pressure
sensors.
If all LEDs do not illuminate when the DECU powers up,
immediately chock the wheels and have the Intellipark
EPB system serviced as soon as possible.
The occupancy sensor signals may come from the vehicle
J1939 or from dedicated hardwire input Pins on the DECU.
If J1939 is used to communicate the occupancy sensor
signals to the DECU, the vehicle system is responsible for
detecting faults and wire harness issues associated with
the occupancy sensors. If hardwire inputs are used, the
occupancy sensor shall be a switch biased by an external
R/2R network, where RA = RB = 3.16 kohm. Resistance
should measure 6.32 kohm when the OCC switch is open
and 3.16 kohm when the switch is closed. See Figure 9.
DECU J1 Connector
Ra 3.16K
PVM Connector Pin Assignments
All wire harness connectors must be properly seated. The
use of secondary locks is strongly advised.
Pin
Name
1
Solenoid Exhaust
2
Solenoid Common
3
Solenoid Deliver
PVM Pressure Transducer Connector
The pressure transducers utilize the following connect Pin
assignments.
Pin
Name
1
Output
2
Ground
3
Power
PVM Solenoid Resistance
Rb 3.16K
Figure 9 – Occupancy Sensors
NOTE: Bendix does not supply the connectors listed.
Parameter
Value
Unit
Solenoid exhaust
11 + 1
Ohms
Solenoid driver
11 + 1
Ohms
Parameter
Value
Unit
Maximum voltage
18
VDC
Minimum voltage
9
VDC
Nominal voltage
13.5
VDC
DECU Input Voltages
DECU Connector Part Numbers
All wire harness connectors must be properly seated. The
use of secondary locks is strongly advised.
22
DECU: J1 Connector Pin Assignments
(Towing and Non-Towing DECU Variants)
Pin
Name
Description
1
GND_1
Ground
2
PS_GND
PVM pressure sensor supply ground
3
PU_PS_SPL
PVM power vehicle pressure sensor supply (5V)
4
PU_PS_SIG_1
PVM power vehicle pressure sensor signal 1
5
OCC_SEN_GND
Driver occupancy sensor 1 ground
6
OCC_SEN_1
Driver occupancy sensor 1
7
OCC_SEN_GND
Driver occupancy sensor 2 ground
8
PU_SOL_EXH
PVM power vehicle park brake exhaust solenoid
9
NC
No contact
10
PU_SOL_COM
PVM power vehicle solenoid common
11
NC
No contact
12
PU_SOL_DEL
PVM power vehicle park brake deliver solenoid
13
J1939_LO
CAN1 low
14
SLS
Stop lamp switch input
15
J1939_HI
CAN1 high
16
OCC_SEN_2
Driver occupancy sensor 2
17
VIGN
Ignition input
18
VBATT_1
Battery input 1
DECU: J2 Connector Pin Assignments
(Towing DECU Variant)
Parameter
Value
Unit
1
GND_2
Ground
2
PS_GND
PVM pressure sensor supply ground
3
TU_PS_SPL
PVM towed vehicle pressure sensor supply (5V)
4
TU_PS_SIG_1
PVM towed vehicle pressure sensor signal 1
5
NC
No contact
6
CAN2_LO
CAN2 low
7
TU_SOL_EXH
PVM towed vehicle park brake exhaust solenoid
8
CAN2_HI
CAN2 high
9
TU_SOL_COM
PVM towed vehicle solenoid common
10
NC
No contact
11
TU_SOL_DEL
PVM towed vehicle park brake deliver solenoid
12
NC
No contact
13
NC
No contact
14
VBATT_2
Battery input 2
23
DECU: J2 Connector Pin Assignments
(Non-Towing DECU Variant)
Parameter
Value
Unit
1
GND_2
Ground
2
NC
No contact
3
NC
No contact
4
NC
No contact
5
NC
No contact
6
CAN2_LO
CAN2 low
7
NC
No contact
8
CAN2_HI
CAN2 high
9
NC
No contact
10
NC
No contact
11
NC
No contact
12
NC
No contact
13
NC
No contact
14
VBATT_2
Battery input 2
COMMUNICATIONS INTERFACE
CAN1
The DECU provides support for a CAN transceiver. CAN
1 is intended for use on the vehicle J1939 bus. It can be
configured for either 250 kbps or 500 kbps operation.
CAN2
A second DECU CAN channel, designated CAN 2, is also
available. It can be configured for either 250 kbps or 500
kbps operation.
24/7/365 ACCESS
FULL SERVICE AT YOUR FINGERTIPS
1-800-AIR-BRAKE (1-800-247-2725)
TECHTEAM@BENDIX.COM
WEB-BASED TRAINING
LOG ON AND LEARN FROM THE BEST
Unless otherwise indicated, the trademarks used in this document, including Bendix,
are United States trademarks owned by, or licensed to, Bendix Commercial Vehicle Systems LLC.
24
SD-03-1189 Rev 004 © 8/2025 Bendix Commercial Vehicle Systems LLC, a member of Knorr-Bremse • All Rights Reserved
- Mixes well with conventional fluids
- Low-moisture formula provides excellent vapor lock...
- Ideal for hydraulic and disc brakes
- Provides an extra margin of safety in extreme braking...
- Mix of polyglycol ethers ensures hot brake-system operation...
- Excellent for ABS, disc and drum brake systems
- Delivers braking power when needed by avoiding a spongy...
- Both wet and dry boiling points exceed the minimum...
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: SD-03-1189_EN_004
Replacement Service Bulletin Number:
MFR Communication Date: 2025-08-28
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: SERVICE BRAKES
MFR Component System: Parking Brake
MFR Component Subsystem: Electronic Parking Brake Control
Previous TSB | Next TSB |
- [Newly Added in 2026: 7 Reset Functions] The 2026 new version of the OBD2 scanner diagnostic tool CRP123X V3.0 Elite has new special functions for F.REE: Throttle Ad.aptation, Oil/SAS/BMS/Brake Reset, D-P.F Re.generation and ABS Service. Before you visit a mechanic, launch obd2 Scanner CRP123X Elite can perform a more in-depth diagnosis of the car system and provide accurate data within minutes. What's more, the list of compatible models has been expanded. Upgrading frequency is regular, occurring monthly even weekly.
- 🔥[FCA AutoAuth + CAN FD & DoIP] As an upgraded version of the LAUNCH CRP123X/CRP129X, FOXWELL NT614, and ANCEL FX2000, The Newest LAUNCH CRP123X V3.0 auto diagnostic scanner supports the following new protocols: CAN-FD for 2020 and newer G.M and Chrysler
models, as well as DoIP for V.olvo, Land Rover/Jaguar, and B.MW F/G chassis. With integrated AutoAuth, you can diagnose 2018 and newer FCA cars equipped with S.GW. Note: CAN-FD and DoIP protocols require an additional obd2 cable. *Menus vary by make, model, and year of gasoline or diesel engine vehicle. Email us your VIN data. - 🔥[No extra software fee. Works on 90 vehicle brands.] Most OBD2 scanners work with vehicles manufactured after 2001. However, the LUNCH OBD2 scanner is compatible with OBDII-equipped vehicles built after 1996 and works with more than 90 vehicle brands. One-click lifetime updates over WIFI 2.4&5.0Ghz keep the car software current and ensure constant coverage additions, diagnose vehicles from 1996 to 2026 with a massive global database. Android 8.1 ensures lightning-fast boot-up and processing.
- [Accurate & Intuitive Multi System Diagnosis] Will you be confused about what happens when the warning light of transmission, ABS, and SRS Airbag check engine flashes? Launch obd2 scanner diagnostic tool CRP123X V3.0 to pinpoint the problem components for a faster diagnosis for your car instead of taking your car to the dealership. Generate vehicle health reports with one click and share them via email over Wi-Fi to help avoid blind maintenance. And will turn off the warning light for you after fixing the problem, make to know more about your cars and do your own repair.
- [Multiple Display of Live Data + DTC Code Definition Explanation] Launch car tools show real-time data of oil temp, pressure, transmission temp, engine speed, coolant temperature, you will know which car part is abnormal. Data can be shown in a single, multi- graph, and merge two graphs for analysis（or 4-in-1 merged waveform graph),you can save, share, print, or email the overall inspection report for easier analysis.🔥Code Search,DTC Library provide massive information. Inbuilt “Feedback” module provides customized repair suggestions from our certified professionals.
- [2026 X431 PRO3 V+ Elite] A great value for the X431 series that differs from similar diagnostic tools by adding: 1) J2534 protocol for over $800 in savings; 2) CANFD/DOIP support for enhanced communications; 3) Configuration of over $900 worth of HD(heavy truck) modules, needed purchase HD diagnostic software by HD vehicle model for use.; 4) A 10.1 inch Gorilla screen with 1280*800 resolution and 80% more touch screen sensitivity
- [J2534 Protocol Scan Tool] The J2534 Direct Access Device can be used as a factory scanning tool at no cost to you, saving you over $2,000. You can easily expand your ECU protocol capabilities for Toyota, Honda, VW, BMW, Ford, GM, Chrysler, Mercedes-Benz and more. The LAUNCH X431 PRO3 V+ ELITE Scan Tool is equipped with the newly upgraded smartlinkC V2.0. smartLinkC is a communication interface that supports the J2534 specification. It can also be used as a J2534 PassThru device to implement the J2534 protocol with a PC that has OEM diagnostic software installed.The J2534 protocol is the only way to solve problems ranging from drivability and power loss to poor fuel economy
- [Top Hardware Configuration, Upgraded Version of V+] LAUNCH Diagnostic Scanner adopts Android 10.0 OS; CPU is 4-core processor with 2.0 GHz, which greatly improves the speed of running multi-tasks. 2.4GHz/5GHz; 6300mAh/7.6V ultra-large capacity battery; 10.1 inch Gorilla screen, sunlight readable, 8MP camera; Auto VIN; 4GB+64GB storage; 20x transfer rate to save more vehicle files and customer data; New TYPE A interface to connect expansion tools such as oscilloscopes, sensors, etc.; Supports more than 25 software languages such as EN, DE, FR, SP and JP
- [60+ Reset 3000+ Active Test] Full Bi-Directional Scan Tool quickly detects problems and guides repairs based on the response of actuators such as air conditioning clutches, windows, doors, mirrors and more. With the touch of a finger, you can easily send command signals from the scanner to a variety of modular actuators, testing component integrity and functionality in minutes or even seconds to determine if a replacement or repair is needed. In addition, the machine enjoys 60+ special services such as oil reset, ABS brake bleed, EPB, SAS, BMS, suspension, injector reset and more, and undergoes rigorous field testing to ensure availability
- [Unrivaled Coverage, Over 200 Vehicle Brands] LAUNCH X431 PRO3 V+ Elite Automotive Scanner is suitable for over 200 vehicle brands, including commercial vehicles and new energy vehicles. This professional car scanner supports: 1) J2534/D-PDU protocol for HD trucks; DoIP/CANFD for Land Rover/Jaguar, BMW F/G chassis, GM, etc.; 2) FCA Autoauth, covering 2018+ Chrysler/Dodge/Fiat, etc. New/old models, all covered. Includes frequently updated vehicle software and car coverage for faster support of other new models
- 🔥【2026 TOP HARDWARE AND SOFTWARE UPGRADE，UPGRADED OF CRP919E】LAUNCH scanner CRP919EBT wireless obd2 scanner has upgraded TOP HARDWARE CONFIGURATION and ADD NEWEST FUNCTIONS. The more FASTER and SMARTER CRP919EBT with 🔥Bluetooths & USB 2-in-1 connect🔥Android 10.0 OS🔥2.0Ghz 4 core high efficiency processor 4GB RAM+64GB ROM large storage🔥6300mAh large battery, more stable and longer lasting diagnostics🔥VAG Guided🔥ECU Code🔥Bi-directional Control🔥35+ Resets🔥CANFD&DOIP🔥FCA AutoAuth🔥Full System Diagnostics🔥2 Yrs Update🔥Newly add BST360 battery tester & I-TPMS & VSP600 endoscope🔥23+ Languages. Provide an unparalleled diagnostic experience at an affordable price.
- 🚗【CAN FD & DOIP & FCA, SUPER PROTOCOL】LAUNCH X431 CRP919EBT is equipped with the DBSCAR VII Bluetooth connector supporting CANFD and DoIP. The CRP919EBT automotive diagnostic scanner supports CAN FD protocol (compatible with post-2020 GM vehicles). It also meets DoIP protocol requirements (adapter sold separately) for compatibility with BMW (E & F chassis) models from 2017 onward. Autoauth for FCA SGW supports FCA vehicles including Chrysler models from 2017 and later.
- ✔️【ADVANCED ECU CODE, ADAPTATION, CALIBRATION & INITIALIZATION】The LAUNCH X431 CRP919EBT automotive scanner delivers exceptional ECU code capabilities for customized vehicle setups. It provides dealer-level functionality to streamline maintenance and repairs, enabling ECU matching and learning for enhanced customization.
- 👍【BIDIRECTIONAL CONTROL, 4000+ ACTIVE TESTS】LAUNCH OBD2 scanner CRP919EBT features bi-directional control - the most demanded capability among mechanics. When headlights or windows malfunction, repairs can be costly. With CRP919EBT, execute ECU commands and assess repair status through systems including ABS, windows, valves, wipers, and headlights - streamlining diagnostics while slashing repair expenses.
- 🥇【35+ MOST POPULAR RESET SERVICE FOR 160 MAKES】Same as Snap-on scanners, CRP919EBT scan tool delivers 35+ reset functions for 160+ vehicle models, including: service oil reset, throttle adaptation, steering angle calibration, brake pad replacement code, tire pressure reset, ABS bleeding, battery registration, gear signal learning, and injector code, etc.
Last update on 2026-06-12 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.