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NHTSA ID Number: 10224307
Manufacturer Communication Number: PIT5832C
Summary
This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
Condition
Some technicians may experience one or more of the following concerns after replacing or reprogramming a module on one of the new Vehicle Intelligence
Platforms. or VIP Vehicles
- DTC: U1962 set current in ANY Module
- No Start
- Invalid Data codes with certain modules even through you can still review the data with GDS2
- Unable to perform a theft relearn or learn remotes back to the vehicle
- Unable to perform Module setup or learn
You may also notice that the VIN number will not self-populate in GDS2
Cause
The serial Data Authentication Configuration procedure runs automatically as part of the programming procedure.
The Serial Data Authentication Configuration is a security handshake between all the modules on the vehicle. One of the main indicators the Serial Data Authentication Configuration did not complete properly is DTC: U1962 is current in one or more modules.
Correction:
The dealer will need to perform the Serial Data Authentication Configuration (SDAC) following Instructions in SI using Document ID: 5404959. Be sure the vehicle is Power Moded to the OFF position before running the Serial Data Authentication Configuration procedure.
If a vehicle will not complete the Serial Data Authentication Configuration (SDAC) after updating or replacing a module, please perform the following:
1. If a module was replaced, make sure the new module was SPS programmed correctly or the SDAC will fail and not complete correctly.
2. If a module such as the BCM is replaced, and the immobilizer learn needs to be completed after replacement, the tech needs to make sure that the SDAC completes correctly, or a pop-up message like the one below will be displayed:
3. If a vehicle will not complete the SDAC, run the SDAC (using the Serial Data Authentication selection in Techline Connect) again. Select the box in SPS controller list in the lower right-hand corner labeled “Serial Data Authentication Configuration”.
4. The SDAC will run 3 times before it fails. When it fails, there should be a pop box that shows up on the screen like the one below. Check and record the items listed under System and ECU. If the system box reads “Server” then the issue is related to the SPS system server or internet connection and not related to the vehicle. Attempt the SDAC again at a later time.
5. If the system box reads “ECU”, then the Global ID of the module that is causing the concern should be able to be obtained. In the example below, the Global ID is listed as K36, which is for the SDM. The module’s name can be found by looking at the global codes listed under “Control Module References” document in SI for the vehicle that is being working on.
6. Sometimes the pop-up box will read “ECU” but it will not give you a Module ID in the ECU box. In this case, the servicing dealer will have to contact Techline support and they will have to assist by getting a SPS log file from the dealership’s system. If this is the case, they must be contacted right after the SDAC failure. If any other programming is attempted before contacting Techline, then the SPS log will be erased.
7. Once the module that caused the concern has been identified, pull the fuse that supplies battery power to that module. Sometimes the fuse is a three-prong fuse that feeds other modules. In this case, the servicing technician will need to find a two-prong fuse to power the other module that was not involved in the SDAC failure.
8. If the SDAC completes after removing battery power from the module in question, that module will need to be replaced. Afterwards, verify that the SDAC completes after SPS programming of the new module.
27 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
BUICK | ENVISION | 2021-2022 |
| CADILLAC | CT4 | 2020-2022 |
| CADILLAC | CT5 | 2020-2022 |
| CADILLAC | ESCALADE ESV | 2021-2023 |
| CHEVROLET | CORVETTE | 2020-2023 |
| CHEVROLET | SILVERADO 1500 | 2022 |
| CHEVROLET | SUBURBAN | 2021-2023 |
| CHEVROLET | TAHOE | 2021-2023 |
| GMC | HUMMER EV | 2022 |
| GMC | SIERRA 1500 | 2022 |
| GMC | YUKON | 2023 |
| GMC | YUKON XL | 2021-2022 |
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5832C
Published date: 09/30/2022
MC-10224307-9999.pdf 449.075KB
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NHTSA ID Number: 10193434
Manufacturer Communication Number: PIT5832
Summary
This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5832
Published date: 04/6/2021
MC-10193434-9999.pdf 229.237KB
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Reprogramming
GM Diagnostic/Programming (TIS2Web)
Approved J2534 Device with TIS2WEB can reprogram 1996 and later All GM Modules.
To obtain the latest electronic controller calibration information for your vehicle, go to https://tis2web.service.gm.com/tis2web and enter the vehicle's 17 character Vehicle Identification Number (VIN) and select 'Get CAL ID’.
You can then compare the latest part number with the actual number installed on the vehicle to determine if a reprogram is needed.
The Service Programming System (SPS) application is part of the TIS2Web system. To program an ECU, the SPS application must communicate with the vehicle control modules using the proper J2534 programming interface tool.
The following are the supported interface tools:
The Tech 2 supports model years 1996 and beyond. With the addition of the CAN Diagnostic Interface (CANdi) module, Tech 2 is fully backward compatible with current Tech 2 functionality and operates transparently when diagnosing non-CAN-equipped vehicles.
Servicing the next generation Global A vehicles will require the diagnostic software, GDS2, Global Diagnostic System 2 running on a local PC device while the MDI is connected to the vehicle. The GM MDI is the Global Diagnostic tool for future vehicles starting with Global A vehicles.
The GM MDI was introduced in the fall of 2007 for Pass-Thru programming and offers faster programming speed. It can be used to perform Pass-Thru programming on all vehicles built since 1996 and into the future. Click here to view a list of GDS supported vehicles.
- J2534 Pass-Thru Programmer: TOPDON RLink J2534 is an advanced diagnostic and reprogramming tool that support all J2534 protocols, as well as D-PDU, CAN-FD and DoIP, ensuring compatibility with a wide range of modern vehicles. It offers extensive versatility with support for over 17 major automotive brands, including Chrysler, Ford, GM, Nissan, Toyota, Honda, Subaru, Land Rover/Jaguar, Volvo, Wuling, Volkswagen, Mercedes-Benz, and BMW, and so on, enjoy dealership-level functions at your fingertips
- All-in-One OEM Diagnostics: This J2534 ECU programming tool elevates your automotive repair capabilities to new heights by delivering complete OEM diagnosis. Boasting comprehensive full-system diagnostics, intuitive repair guides, advanced ECU programming and coding, common reset services, a vast library of repair information and more, this all-in-one solution empowers technicians to effortlessly tackle complex vehicle issues with ease
- Proven Performance You Can Trust: Backed by over 10000 real vehicle tests and benefit from a wealth of practical experience, this OEM reprogramming tool guarantees stable and exceptional performance. Supported by TOPDON's dedicated technical experts with in-depth knowledge of both auto repair and J2534 Pass-Thru programming, the RLink J2534 provides prompt and professional assistance, ensuring a smooth setup and reliable compatibility
- Integrated Excellence, Always Up-to-Date: Featuring the exclusive RLink Platform to provide a streamlined experience with one-click driver installation and management, ensuring flawless integration with your OE software, maintaining the original performance quality. The built-in operation guide makes mastering OE software quick and easy, so you can get started right away. Plus, with lifetime free updates, your diagnostics will stay current with the latest drivers and innovations
- Efficiency Meets Versatility: Engineered to support three CAN channels simultaneously - CAN FD and CAN-CC included, giving you the edge in fast troubleshooting. To perfectly synchronized with the OE software, please diagnose with active subscriptions and make sure your computer system is running a compatible 64-bit Windows version (7, 8, 10 or later) to fully leverage the power of RLink J2534. *We don't provide extra OE software
- 【J2534 PROTOCOL WITH SMARTLINKC】 LAUNCH X431 PRO3S+ ELITE scan tool with newly upgraded smartlinkC V2.0. The SmartLinkC is a communication interface supporting J2534 specifications. Of course, it also can be used as a J2534 PassThru device, working together with the PC installed with the OEM diagnostic software to perform the J2534 protocol.J2534 protocol is the only solution for problems ranging from driveability and loss of power to poor fuel economy.
- 【INTELLIGENT TOPOLOGY MAP TO FASTER FULL SYSTEMS DIAGNOSIS】 X431 PRO3S+ELITE bidirectional scan tool with new-added intuitive topology mapping. Harnesses intuitive topology mapping for comprehensive visualization of the vehicle all system. It shows all available control units in different colors, the numbers of system, the scanned system, and the scan results, bringing maximum convenience & superfast speed for you to do swift diagnosis & high-level repairs.
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- 【3000+ ACTIVE TEST/BI-DIRECTIONAL CONTROL LAUNCH SCANNER】 LAUNCH X431 PRO3S+ELITE HD automotive scanner is a cost-effective bidirectional scanner that deserves owned by every repairing DIYers and mechanics. You can easily send command signal at fingertips from the scanner to various module actuators to test component integrity and functionality in minutes or even seconds to tell if replacement or repair is needed.
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- 🌐【Works with Autel Elite II Elite MS908 MS908S Pro II MS908CV II MK908P MK908 Pro II】Autel J2534 work with these tools to program ECUs on specific BM.W/ BE.NZ for specific functions. ★★NOTE: J2534 CANNOT directly work with these single devices. After you received the J2534, you HAVE TO send us both the S/N(12 digits) of your scanner MS908S(etc.) and J2534. So, technically, Autel engineers can help you bind J2534 with your devices. If need any supports, contact us via: 🚘auteldirect @ outlook. com🚘.
- 🌐【SAE J2534-1 & J2534-2 Standards】Autel MaxiFlash Elite J2534 is a fully compliant SAE J2534-1 & SAE J2534-2 (March 2006) device, which performs standard PassThru J2534 functionality: Compatible with for Toyota Techstream, Volvo VIDA, Honda HDS, Jaguar-Land Rover IDS and BM.W 3G for OEM diagnostics. Autel MaxiFlash J2534 is also specially designed to provide users with P-C communication and ECU reprogramming capabilities on any modern vehicle diagnostic bus, reliability and flexibility.
- 🌐【High-speed Transmission Speed】Autel MaxiFlash Elite Reprogramming Device J2534 supports simultaneous communication definition in J2534-1, running 3 protocols at the same time, which greatly improves reprogramming and diagnostic speed. Embedded with the ARM9 Dual-core processor (clocked up to 500MHz), which further boosts the communicating speed to save more times and win more business.
- 🌐【Multiple Devices Connected with P-C】Autel MaxiFlash Elite J2534 also supports multiple device connections to the P-C, which can operate diagnostic and reprogramming functions on more than one vehicle at the same time. Autel MaxiFlash Elite J2534 built-in wireless and data storage, which can update via Internet. It also ensures quickly reprogramming even the newest controllers.
- 🌐【Extensive Compatibility】Autel MaxiFlash J2534 is compatible with Toyota Techstream, Volvo VIDA, Honda HDS, Jaguar-Land Rover IDS and BM.W 3G for OEM diagnostics. To check compatibility, please contact 🚘auteldirect @ outlook . com🚘 directly for satisfaction-guaranteed support!
- ALL OF THE J2534 PROTOCOLS - This single unit has all of the protocols you need for your OEM J2534 reprogramming and diagnostics including the latest in DoIP and CanFD
- J2534 TECHNICAL SUPPORT - FREE for the life of the tool. Staffed by technicians who understand vehicle repair and J2534 Pass‑thru
- TOOLBOX WITH OEM APPLICATION DESCRIPTIONS - educational video tutorials and real-time news – Giving you the confidence and up-to-date knowledge to get the job done
- J2534 v05.00 API - The newest version of J2534 to give you the latest in pass-thru technology
- FUTURE PROOF WITH 4 CAN CHANNELS - Going beyond the 3 required by select Chrysler/FCA models, CarDAQ-Plus 3 also provides a 4th to meet the needs of future OEM applications
- CUSTOM-DESIGNED FOR USE WITH FORSCAN: Works with all FORScan compatible vehicles and is recommended by the FORScan Team
- DEALERSHIP-LEVEL DIAGNOSTICS: OBDLink EX supports all Ford protocols, modules, and advanced features of FORScan
- ELECTRONIC SWITCH allows FORScan to access all CAN buses simultaneously and enables advanced functions not possible with “toggle switch” adapters
- MAXIMUM THROUGHPUT -- up to 20 times faster than “toggle switch” adapters
- ROCK-SOLID CONNECTION avoids data corruption and dropped packets
- [J2534 COMPLIANT] - The Mastertech II is a J2534-1 and J2534-2 compliant VCI for OEM reprogramming and diagnostic applications
- [FULLY VALIDATED BY TOP 6 OEMS] - Mastertech II has been fully validated to operate with the top 6 OEM reprogramming applications: GM, Ford, FCA, Nissan/Infinity, Honda/Acura, and Toyota/Lexus
- [PRE-CONFIGURED] - The pre-configured wireless and wired connections make it quick and easy to connect to a vehicle from your PC (requires PC compliant with OE specifications and software)
- [RIGHT TO REPAIR] - Supports 'Right to Repair' (R2R) initiatives
- [COMPREHENSIVE KIT] - Kit includes: VCI, WiFi adapters (wireless PC to VCI), J1962 Cable (connect to vehicle), USB cable (connect to PC for firmware updates and setup), and Quick Start Guide
SEOCONTENT-START
Bulletin No.: PIT5832C Published date: 09/30/2022
Preliminary Information PIT5832C Diagnostic Tip: No Start Or Unable To Perform Theft Relearn After Replacing Or Programming A Module / DTC U1962
Models Brand: Buick Cadillac Cadillac Cadillac Chevrolet Envision CT4
CT5
Escalade Models Corvette Model: Model Years: 2021 – 2023
2020 – 2023
2020 – 2023
2021 – 2023
2020 – 2023 VIN:
from to
All All
All All
All All
All All
All All Engine: All All All All All Transmissions: All All All All All Chevrolet Chevrolet Chevrolet GMC GMC GMC Silverado 1500 New (RPO J22, VIN Digit 12 = A or D) Suburban
Tahoe
Yukon Models HUMMER EV
Sierra 1500 New (RPO J22, VIN Digit 12 = A or D) 2022
2021 – 2023
2021 – 2023
2021 – 2023
2022
2022 All All All All All All All All All All All All All All All All All All All All All All All All Involved Region or Country North America
Condition
Some technicians may experience one or more of the following concerns after replacing or reprogramming a module on one of the new Vehicle Intelligence Platforms. or VIP Vehicles
1. DTC: U1962 set current in ANY Module
2. No Start
3. Invalid Data codes with certain modules even through you can still review the data with GDS2
4. Unable to perform a theft relearn or learn remotes back to the vehicle
5. Unable to perform Module setup or learn
6. You may also notice that the VIN number will not self-populate in GDS2
Cause
The serial Data Authentication Configuration procedure runs automatically as part of the programming procedure.
The Serial Data Authentication Configuration is a security handshake between all the modules on the vehicle. One of the main indicators the Serial Data Authentication Configuration did not complete properly is DTC: U1962 is current in one or more modules.
See Example below: Correction:
The dealer will need to perform the Serial Data Authentication Configuration (SDAC) following Instructions in SI using Document ID: 5404959. Be sure the vehicle is Power Moded to the OFF position before running the Serial Data Authentication Configuration procedure.
If a vehicle will not complete the Serial Data Authentication Configuration (SDAC) after updating or replacing a module, please perform the following:
1. If a module was replaced, make sure the new module was SPS programmed correctly or the SDAC will fail and not complete correctly. 2. If a module such as the BCM is replaced, and the immobilizer learn needs to be completed after replacement, the tech needs to make sure that the SDAC completes correctly, or a pop-up message like the one below will be displayed: 3. If a vehicle will not complete the SDAC, run the SDAC (using the Serial Data Authentication selection in Techline Connect) again. Select the box in SPS controller list in the lower right-hand corner labeled “Serial Data Authentication Configuration”. 4. The SDAC will run 3 times before it fails. When it fails, there should be a pop box that shows up on the screen like the one below. Check and record the items listed under System and ECU. If the system box reads “Server” then the issue is related to the SPS system server or internet connection and not related to the vehicle. Attempt the SDAC again at a later time. 5. If the system box reads “ECU”, then the Global ID of the module that is causing the concern should be able to be obtained. In the example below, the Global ID is listed as K36, which is for the SDM. The module’s name can be found by looking at the global codes listed under “Control Module References” document in SI for the vehicle that is being working on. 6. Sometimes the pop-up box will read “ECU” but it will not give you a Module ID in the ECU box. In this case, the servicing dealer will have to contact Techline support and they will have to assist by getting a SPS log file from the dealership’s system. If this is the case, they must be contacted right after the SDAC failure. If any other programming is attempted before contacting Techline, then the SPS log will be erased. 7. Once the module that caused the concern has been identified, pull the fuse that supplies battery power to that module. Sometimes the fuse is a three-prong fuse that feeds other modules. In this case, the servicing technician will need to find a two-prong fuse to power the other module that was not involved in the SDAC failure. 8. If the SDAC completes after removing battery power from the module in question, that module will need to be replaced. Afterwards, verify that the SDAC completes after SPS programming of the new module.
Version History
Version 4
04/06/2021 – Created on
01/26/2022 – Update to add models and model years and to add to diagnosis. Modified 08/29/2022- Update to add Truck models with VIP communications 09/29/2022- UPdate PI to fix model descriptions for Pick up models
© 2022 General Motors. All Rights Reserved.
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SEOCONTENT-END
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