NHTSA ID Number: 11029239
Manufacturer Communication Number: 30-001-26
TSB/Document Date: 2026-03-03
Summary
This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 30-001/25 06/30/25 and 05/15/25 Some customers may experience a hybrid
system failure message appearing on the meter and the engine does not start, along with other numerous DTCs. This is caused by improper logic of the Powertrain Gateway Unit. To eliminate this concern, the control software of Powertrain Gateway Unit has been modified.
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)
- 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...
This product presentation was made with AAWP plugin.
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: 30-001-26
Replacement Service Bulletin Number:
MFR Communication Date: 2026-02-20
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ENGINE
MFR Component System:
MFR Component Subsystem: Hybrid
Previous TSB | Next TSB |
BULLETIN NOTES
This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red.
Previous TSBs:
Date(s) Issued:
30-001/25
06/30/25 and 05/15/25
APPLICABLE MODEL(S)/VINS
2025 CX-50 Hybrid with VINS lower than 7MMVA******124732 (produced before April 22, 2025)
DESCRIPTION
Some customers may experience a hybrid system failure message appearing on the meter and the engine does not
start, along with other numerous DTCs.
U0100:00-08:DASH_ESU
U0131:00-2E:PT_GWU
U2522:68-8C:DSC
B2009:92-08:DASH_ESU
U0140:00-2E:PT_GWU
U0100:00-08:EPB
B14F2:86-08:VCM
U0151:00-2E:PT_GWU
U0402:00-08:EPB
U0415:68-08:VCM
U0155:00-2E:PT_GWU
U0101:00-08:EPB
U0147:00-08:VCM
U0156:00-2E:PT_GWU
U0100:00-08:EPS
U0448:68-08:VCM
U0164:00-2E:PT_GWU
U0100:00-08:ISB_AMP
P2530:12-6C:Hybrid Control
U2121:00-2E:PT_GWU
U0101:00-08:ISB_AMP
U0140:00-08:WC_Qi
U212E:00-2E:PT_GWU
U0100:00-0A:BCM
U0073:00-2E:PT_GWU
U2131:00-2E:PT_GWU
U0101:00-0A:BCM
U010F:00-2E:PT_GWU
U213A:00-2E:PT_GWU
U213E:00-08:BCM
U0129:00-2E:PT_GWU
U0301:00-8C:DSC
U0147:00-08:BCM
This is caused by improper logic of the Powertrain Gateway Unit. To eliminate this concern, the control software of
Powertrain Gateway Unit has been modified.
Customers having this concern should have their vehicle repaired using the following repair procedure.
Page 1 of 2
02/23/2026 12:47 PM tlawrenc
REPAIR PROCEDURE
1. Verify the customer concern.
2. Reprogram the PT_GWU with the Mazda Modular Diagnostic System (M-MDS), using Mazda Diagnostic And Repair
Software (MDARS). Refer to MDARS ECU Reprogramming Procedure.
WARNING: During module reprogramming, the engine cooling fan may turn on and off automatically. Keep
hands, tools, and any objects clear of the cooling fan and other moving components in the engine bay during
the reprogramming procedure.
NOTE: Be sure to submit Diagnostic Information (ODR) data as it is a required item and will be checked during
warranty claim submission. Instructions can be found under M-MDS -> MDARS (Uploading Diagnostic
Information (ODR) Data).
3. Clear any other DTC.
4. Verify the repair by starting the engine (READY ON) and confirming there is no CHECK ENGINE light ON or abnormal
warning lights present.
CALIBRATION
ECU
PT_GWU
File Name
(New)
CW01-188K2-D
CW04-188K2-G
NOTE: This TSB is only applicable for vehicles using the above calibration files.
WARRANTY INFORMATION
NOTE:
• This warranty information applies only to verified customer complaints on vehicles eligible for warranty repair.
• This repair will be covered under Mazda’s New Vehicle Limited Warranty term.
• Additional diagnostic time cannot be claimed for this repair.
Warranty Type
A
Symptom Code
6X
Damage Code
9W
Part Number Main Cause
Quantity
Operation Number / Labor Hours:
5555-67-GMX
0
XXX25XFX / 0.3 Hrs.
Page 2 of 2
02/23/2026 12:47 PM tlawrenc
- 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 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
- WHY S608 STANDS OUT:2026 Kingbolen S608 is the only scanner <200 bucks that offers powerful active tests on Engine, ABS, SRS, and Transmission systems. Offers 9 resets,Covers 110+ global brands with a 6.2'' larger touchscreen
- KINGBOLEN'S NEW BIDIRECTIONAL SCAN TOOL: As the 2026 upgraded version of S600, our Newest S608 obd2 scanner has the powerful Bi-directional Control on Engine, ABS, SRS, and Transmission systems. It can send commands to the ECUs of actuators for functional tests and work status checks, such as ABS, fuel injectors, adjusting throttle, coolant pumps, EVAP test, fuel trim reset, etc. No more Guesswork. Quickly identify problem components without teardown, get fuss-free results in seconds.
- 【9 HOT RESET SERVICES CAR SCANNER】Tired of costly mechanic trips for common resets? The Kingbolen S608 obd2 scanner lets you do it yourself, even for beginners—quickly and effortlessly! It offers 9 hot reset functions: Oil/EPB Reset, ABS Bleeding, SAS Calibration, DPF Regeneration, Injector Coding, BMS Matching, Throttle Adaptation, Gear Learning. Stop paying mechanics for 5-minute jobs. Save hundreds per year! 🚗*Function vary from vehicle models. reach us to check compatibility firstly!
- 【4 SYSTEM DIAGNOSTIC TOOL + FULL OBDII FUNCTIONS】Kingbolen S608 is an OBDII scanner and 4 systems diagnostic tool made for home mechanics, DIYers, and professionals. You can access Engine, ABS, SRS, Transmission fault codes, track live data in graphs, and onboard DTC library lookup to find the right troubleshooting procedure, and diagnose with full 10 OBD2 test modes to fix most of emission issues. Give your aging cars routine maintenance to avoid costly repairs, a breakdown, or even a crash.
- 【NEW CAN FD, FCA/RENAULT SGW, 140+ BRANDS】Kingbolen S608 scanner for car supports 140+ vehicle brands, 100,000+ models, 28 languages and can be used worldwide. S608 stays up-to-date with modern vehicles, allows secure access to 2017+ FCA cars and 2015+ Renault cars (📢*Need to purchase an AutoAuth/Renault account by yourself), and supports the latest CAN-FD protocol for 2019+ GM/Chrysler, enabling 2X faster data transfer and more precise diagnostics. 🚗*Check compatibility before purchase.
This product presentation was made with AAWP plugin.
Last update on 2026-05-11 / Affiliate links / Images from Amazon Product Advertising API