NHTSA ID Number: 10178185
Manufacturer Communication Number: 2055643/2
TSB/Document Date: 2020-08-07
Summary
Software incompatibilty between J775 (Address 74) - J924 (Address D4) and J1096 (Address D5). Customer statement / workshop findings After replacing the software or hardware for the Adaptive suspension control unit (J775 Diagnostic address 74) or the Front Roll stabilisation control unit (J924 Diagnostic address D4) and/or the Rear Roll stabilisation unit (J1096 Diagnostic address D5) the software could be incompatible between the control units Technical background The Adaptive air suspension control unit (J775) functions as a universal control unit for the chassis control systems. The Adaptive air suspension control unit (J775) controls several functions in the car in particular the master for the active roll control system, The control unit contains developed suspension and damping control software. Should one of the modules be replaced for example (J775) on an early model vehicle the newer software contained within the replacement control unit may not be compatible with (J924) and/or (J1096)
Technical product information
Topic
Market area
Brand
Transaction No.
Level
Status
Release date
Software incompatibilty between J775 (Address 74) - J924 (Address D4) and J1096 (Address D5)
Bentley
: worldwide (2WBE),Hongkong-Macau (5HK)
Bentley
2055643/2
EH
Released for publishing
03-Jul-2020
New customer code
Object of complaint
Complaint type
running gear -> adaptive suspension, pitch and roll compensation
vehicle service -> vehicle diagnosis -> guided fault finding
running gear -> shock absorber/suspension control
running gear -> adaptive suspension, pitch and roll compensation
functionality
control units, services -> with event log entry
functionality
component / consumables
Vehicle data
Bentayga specified with the Active anti roll bar system
Sales types
Type MY Brand Designation Engine code Gearbox code Final drive code
4V1*
4V1*
4V1*
4V1*
4V1*
2017
2018
2019
2020
2021
E
E
E
E
E
Documents
Document name
master.xml
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Position
Technical product information
Software incompatibilty between J775 (Address 74) - J924 (Address D4) and J1096 (Address D5)
Transaction No.: 2055643/2
Release date: 03-Jul-2020
Customer statement / workshop findings
After replacing the software or hardware for the Adaptive suspension control unit (J775 – Diagnostic address 74) or the Front Roll stabilisation
control unit (J924 – Diagnostic address D4) and/or the Rear Roll stabilisation unit (J1096 – Diagnostic address D5) the software could be
incompatible between the control units
Technical background
The Adaptive air suspension control unit (J775) functions as a universal control unit for the chassis control systems.
The Adaptive air suspension control unit (J775) controls several functions in the car in particular the master for the active roll control system,
The control unit contains developed suspension and damping control software.
Should one of the modules be replaced for example (J775) on an early model vehicle the newer software contained within the re placement
control unit may not be compatible with (J924) and/or (J1096)
Production change
Not applicable
Measure
The compatibility of the Adaptive air suspension control unit (J775) - Front Roll stabilisation control unit (J924) and the Rear Roll stabilisation
control unit (J1096) should be checked and confirmed as follows:
Software vers ion check
Referring to Figure 1 - Open the most recent ODIS log and navigate to address 0074
•
Check and confirm the software version number
•
NOTE: In this case the software version number is 1214
Figure 1
Referring to Figure 2 – Navigate to address 00D4
•
Check and confirm the software version number
•
NOTE: In this case the software version number is 0211
Figure 2
Referring to Figure 3 – Navigate to address 00D5
•
Check and confirm the software version number
•
NOTE: In this case the software version number is 0211
Figure 3
•
The operative should check and confirm software compatibility by referring to the onward combinations
•
NOTE: In the example shown the compatibility is incorrect as the software within (J775) is 1214 and the software within (J924) and (J1096)
is 0211 – all onward combinations shown are correct
Should the software version be different between ( J924) and J1096) DTC C1296F 1 – ‘Sway Stabilization Control Module –
Incompatible version’ may also be logged in D4 and/or D5
Combination 1
Control units
Compatible software versions
Adaptive air suspension control unit (J775) 1213 or 1214
Front Roll stabilisation control unit ( J924) 0209
Rear Roll stabilisation control unit ( J1096) 0209
Combination 2
Control units
Compatible software versions
Adaptive air suspension control unit (J775) 1214 or 1244
Front Roll stabilisation control unit ( J924) 0111
Rear Roll stabilisation control unit ( J1096) 0111
Combination 3
Control units
Compatible software versions
Adaptive air suspension control unit (J775) 1244 or 1245
Front Roll stabilisation control unit ( J924) 0211
Rear Roll stabilisation control unit ( J1096) 0211
Combination 4
Control units
Compatible software versions
Adaptive air suspension control unit (J775) 1245 or 1246
Front Roll stabilisation control unit ( J924) 0113
Rear Roll stabilisation control unit ( J1096) 0113
1) Should an incompatibility issue be found in one or a combination of control units, please raise a DISS query ensuring a current diagnostic log
is attached and all information is included regarding which control units are affected
- 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 2026-06-23 / 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: 2055643/2
Replacement Service Bulletin Number:
MFR Communication Date: 2020-07-03
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM:SOFTWARE
MFR Component System:
MFR Component Subsystem:
Previous TSB | Next TSB |
- 💯【Conta.ct us for Support Directly】If you met any issues about: Received a registered device/ Language Changing/ Function not Support/ VCI150 Blueto-oth connector malfunction/ Subscription Renewal, please conta.ct us via 📞autelsupply @outlook. com🛣️, we will provide perfect solution for you. ⚠️Note: Autel MK900BT comes with 1-Year Free Software Update, most features will remain active after update subscription expires. 1. For questions regarding updates or need more useful accessories, please conta.ct us via 📞autelsupply @outlook.com🛣️. 2. If the device fails to charge or turn on, please conta.ct us via 📞autelsupply @outlook. com🛣️, we will handle it promptly.
- 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW MODEL OF MK808S MK900 MX900 MK808BT MX808S】2026 newest Autel MK900BT retains all features of MK808S MX900 MX808S MK808Z MK808Z-BT MK808K-BT, while EXTRA added powerful functions (value 2000+ bucks). The Pro-level Autel MK900BT makes a big leaps: 28+➡40+, 50+➡3000+ Active Tests, 2026 NEW✅CAN FD & DOIP protocols ✅Pre&Post diagnostic report ✅WIFI Print ✅Auto VIN&Auto Scan 2.0 ✅Scan VIN/ License ✅Battery Test (Need purcha.se BT506). If found defect or us.ed, please conta-ct 📞autelsupply @outlook. com📞 get perf-ect solut.ion.
- 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS906 PRO】Differ from MS906BT MS906 MP808 MK808 MX808 MK808BT only 50 tests, Autel scanner MK900BT escaner automotriz professional offers 3000+ active tests, it can send command to ECUs & monitor actuators operation, quickly locating faulty components. Bidirectional scanning takes your diagnostics to the next level with menu lists 3000+ active tests, such as windows, rear mirrors, sunroof, wipers, fuel injector, coolant fans, radiator fan, AC clutch, coolant pump and more. Note: Functions are not available for all vehicles, please send vehicle VIN to us check compatibility.
- 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full level-up of OBD2 code reader MaxiCOM MK808S MK808 MK808Z MX808 MK808Z-BT with 28 service, Autel scan tool MK900BT/ MK900-BT offers 40+ maintenance service on 150+ brands 10,000 vehicles from 1996-2025-2026. Hottest Services like: Oil Reset, ABS Bleed, SAS Calibration, Injector Coding, SRS, Throttle Reset, Gearbox Reset, Battery Registration etc. Added 12+ advanced resets: rain slash light sensor reset, HVA.C/ SUS calibration etc. Welcome to send Vehicle Make>Model>Year>VIN>Functions you required to 📞autelsupply @ outlook . com📞 check compatibility.
- 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE/ AUTO VIN】2026 new release Autel MaxiCOM MK900-BT scan tool embodies all system diagnostic with its 8in display for all vehicles. Like Sna.p-on tools, it can perform ✔Read/Clear Codes✔Displays 5-in-1 Live Data✔Record & Playback Data✔Retrieve Info on all available systems like ABS ECM BCM SRS TCM etc. In addition to Auto VIN technology, Autel MK900BT adds Scan License/ Auto Scan 2.0 to identify vehicle’s VIN/ license, make, year, model, no need manual input; One-click WiFi Printing of Pre&Post comparison diagnostic reports, highlight root causes of problems.
- 【TURN OFF CEL】 This AL319 car scanner diagnostic tool supports Reading and Clearing DTCs, DTC Look Up, displaying Live Data, Freeze Frame & I/M Readiness, view vehicle information, etc., to figure out the root cause of the Check Engine Light (CEL) and turn it off, helping you catch any potential issues early and avoid excessive costs from unnecessary repairs.
- 【EXTENSIVE APPLICATION】 Autel AL319 Compatible with 7 languages (English, French, Spanish, etc.) and various post-1996 OBD II protocol vehicles (Toyota
, Nissan, Honda, Ford, etc.), this OBD II scanner provides accurate and fast diagnosis for worldwide car owners. - 【FOR END USER & DIYERS】 This error code reader AL319 is “plug and play” and comes with an easy interface. Even if you’re not familiar with vehicle repair, you can quickly take control of this obd2 scanner, and get the information you want.
- 【USER-FRIENDLY DESIGN】 This OBD2 scanner and check engine code reader features a patented One-Click I/M Readiness, TFT color display, built-in speaker, LED Indicator etc. The cable is long enough without being too long and getting in the way. No batteries are needed.
- 【HIGH-QUALITY SERVICES】 12 months war.ranty from the date of purchase and lifetime free update are offered by this Automobile OBDII scan tool. Welcome to contact us via Q&A, email, or hotline, and our after-sale-service team for technical support.
- 👨🎓Tips Before Order: 🚩All function are vehicle-specific - send VIN(17 digits)/Make/Model/Year & needed function via 📞auteldirect @ outlook . com📞 to check before order. 🚩Register tool: a) Follow on-screen guide; or b) Register em-ail on Autel we-b, then bind using SN(back of device) + verification code (find in tool settings or con-tact us via above em-ail). MK808BT PRO comes with ✅English, if need Spanish, please s.end device SN to add. ✅1-year war-ranty. ✅$150 worth 1yr fr-ee updates(New users: ignore renewal alerts). ⚠️📢Post-expiry: Most functions remain functional,for exclusions, refer to A+ Tips. ⚠️Fee for FCA AutoAuth Ga.teway(optional): $50/year, charged by AutoAuth,not Autel.
- 【2026 MK808BT PRO: Same as MK900BT, up of MK900 MX900 MK808S MX808S】Why pay more? 2026 MK808BT PRO functions as MK900BT and saves you 100USD. At same c0st, you now get diagnostic 8X faster and sup-port for 150+ models(1996-2026).💡Dramatically Improved: ✔️Faster & Smarter OS: Android 4.4➡ Android 11 ✔️More Services: 28+➡ 40+ ✔️Bidirectional Control: 50+➡ 3,000+ ✔️Enhanced Hardware: 1/32G➡ 4G/64G ✔️2.4GHz➡ 5G Dual WiFi ✔️Working range: 0.9m➡ 10m+ 🔋Battery test is clear on the large 7in display(BT506 required). 🔔Your Autel scanner is shipped brand new. For any issues(used, damaged, incompatible), e-m-a-il 📞auteldirect @ outlook . com📞 for priority resolution.
- 👍【New Next-Level Bidirectional Control, 50➡3000+ Tests, Covers Daily Repairs】Unlike the Autel DS708 DS808 MP808 MK808 and MX808 car diagnostic scanners, which offer only 50 functional tests, the Autel bidirectional scan tool MK808BT PRO is equipped with over 3000 active tests. These tests are widely used on car subsystems to help technicians quickly check if the car's actuators are functioning properly. Such as ABS, windows, rearview mirrors, wipers, sunroofs, fuel injectors, AC clutches, coolant fans, radiator fans, coolant pumps,etc. Tips📢: All functions are vehicle-specific, not universal to all vehicles,pls send VIN to 📞auteldirect @ outlook . com📞check compatibility before order.
- 👍【28+ Hot Services for 150+ Makes】Autel scan tool MK808BT PRO, upgraded with a BT VCI Mini(valued at 120USD), surpasses the old wired OBDII scanner MK808S MK900, by providing a convenient 33ft wireless working range, offering greater freedom and comfort compared to the 3.3ft cable limit of the MK900 MK808S MX808S car scanner. New features include VIN Check across different modules for comparison and 28+ resets, such as injector coding, ABS autobleed, Oil reset, SAS cali.bration, BMS, throttle relearn, suspension adjustments, etc. ⚠️📢Tips: Service functions are vehicle-specific, not universal to all vehicles, pls send VIN to 📞auteldirect @ outlook . com📞check compatibility before order.
- 👍【All Available Module Diagnosis - OE-Level Scanner】The OE versatile OBDII scan tool MK808BT PRO escaner para autos effectively works with all car systems: ABS, ECM, BCM, SRS, TCM,etc. It identifies vehicles via AutoVIN/manual input/select, like S.nap-on tools, it can ✔read/clear 7000+ DTCs, ✔read ECU info, ✔view 5-in-1 live data, ✔perform active tests, and ✔reset services. ✔Reports can be shared via QR-code and printed, working globally and 21+ multilingual. Supports 150+ US/EU/Asian makes, with ongoing updates from 2024 to 2026. ⚠️Note📢: The AutoVIN function usually works for post-2006 cars, depending on if the vehicle's VIN is stored in the ECU. You can always do manual input/select.
Last update on 2026-06-23 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.