For automotive technicians and serious DIY enthusiasts working with GM vehicles, the Gm Tech2 Obd2 Scanner is an indispensable tool. This professional-grade diagnostic scanner is specifically designed for GM makes, offering in-depth diagnostics, troubleshooting, and even programming capabilities for a wide range of models from 1992 up to 2014, and in some cases beyond with specific software. If you’re looking to maintain, repair, or enhance your GM, Saab, Opel, Suzuki, Isuzu, or Holden vehicle, understanding the power of the Tech2 scanner is crucial.
Key Features of the GM Tech2 Scanner
The Tech2 scanner stands out from generic OBD2 scanners due to its comprehensive, manufacturer-level access to GM vehicle systems. Here are some of its key advantages:
- Extensive Vehicle Coverage: This scanner isn’t just for GM. With the right software, it expertly diagnoses SAAB, Opel, Suzuki, Isuzu, and Holden vehicles, making it a versatile tool for workshops dealing with multiple brands. Remember to select the appropriate software card for the vehicle brands you intend to service before ordering.
- Multi-Language Support: To cater to a global market, the GM Tech2 supports multiple languages including English, Italian, French, Portuguese, German, Spanish, Korean, Japanese, Thai, and Chinese. Ensure you specify your preferred language when ordering to receive the correct software card.
- Updatable Software: Unlike scanners that quickly become outdated, the Tech2 is designed for longevity. Software updates are easily implemented via replaceable 32MB software cards. As newer software versions become available, simply purchase a new card to keep your diagnostic capabilities current.
- Broad Diagnostic Year Range: The GM Tech2 provides diagnostic coverage for GM systems from 1992 all the way to 2014. Paired with the TIS2000 software, it extends its functionality to include programming for vehicles manufactured before 2007, offering a significant span of vehicle model support.
GM Tech2 Software and Vehicle Coverage
The Tech2 scanner’s versatility is largely due to its software card system. Here’s a breakdown of the software options and their vehicle compatibility:
GM:
- GM-English: Version 33.004 (1991-2014)
- GM-Spanish: Version 33.002 (1991-2014)
- GM-German: Version 32.007 (1991-2013)
- GM-Japanese: Version 32.006 (1991-2013)
- GM-French: Version 32.007 (1991-2013)
- GM-Italian: Version 32.007 (1991-2013)
- GM-Portuguese: Version 32.002 (1991-2013)
- GM-Korean: Version 32.002 (1991-2013)
- GM-China: Version 32.002 (1991-2013)
OPEL:
- OPEL-English: Newly Updated to V180 (1997-2014)
- OPEL-Italian: Newly Updated to V180 (1997-2014)
- OPEL-German: Newly Updated to V180 (1997-2014)
- OPEL-Turkish: Newly Updated to V180 (1997-2014)
- Opel software V180 supports car models from 1997 to 2014.
SUZUKI:
- SUZUKI-English: V01.210.020
SAAB:
- SAAB-English: V148.000
ISUZU:
- ISUZU-English CAN-BUS: V180 (2006-2015) – Supports CAN-BUS models post-2010.
- ISUZU-English K-Line: V11.680 (1996-2014) – Supports K-line models from 1996 to 2014.
Holden:
- Holden-English: V149.000 (1999-2013) – For North American Area Only.
- Holden-English: V147.000 (1999-2012) – For Australia.
It’s important to note that the GM Tech2 scanner primarily supports 12V cars and is not designed for trucks unless specified adapters are used. Also, ensure you select the software package that includes all the brands you need at the time of purchase.
Tech2 Scanner Specifications: Built for Professional Use
The GM Tech2 is engineered for reliability and performance in a workshop environment. Its specifications highlight its professional-grade design:
- Software: Authentic GM software ensures comprehensive diagnostics for GM vehicles, rivaling dealer-level capabilities.
- Diagnostic Coverage: Supports on-board diagnostics for all GM systems from 1992 to the current applicable year (software dependent).
- Hardware Modules: Removable hardware modules protect against obsolescence, allowing for future upgrades and adaptations.
- Display: Features a large, backlit screen that is easy to read in various lighting conditions.
- Connectivity: Equipped with RS232 & RS485 ports for connecting future devices and peripherals.
- Data Capture: Capable of capturing and storing DTCs (Diagnostic Trouble Codes), Freeze Frame data, and Failure Records for in-depth analysis and later review.
- Live Data Streaming: Allows viewing of vehicle diagnostic test statuses in real-time as tests are conducted.
- Bi-Directional Control: Offers full bi-directional control when performing diagnostics on powertrain, chassis, and body systems, providing active testing capabilities.
GM Tech 2 Scanner displaying diagnostic information on its backlit screen, highlighting its user-friendly interface and robust design for automotive professionals.
Detailed Specifications:
- Dimensions: 12 inches (approximately, dimension unit missing in original text)
- Microprocessor: 32 bit, 16 MHz
- Memory: 32 MB flash type II PCMCIA, with a Type III slot available for expansion.
- Communications: Integral RS232 communication port.
- Screen: 3.8.8 inch backlit monochrome LCD with 320×240 pixel resolution, displaying up to 9 vehicle parameters simultaneously.
CAN Diagnostic Interface: Adapting to Modern GM Vehicles
The automotive industry’s shift to Controller Area Network (CAN) protocol means that modern vehicles require different diagnostic approaches. The GM Tech2, when paired with the CAN diagnostic interface module (CANdi), is fully equipped to handle this transition.
The CANdi module bridges the Tech2 scanner to the OBD adapter, enabling diagnostics on vehicles utilizing the CAN interface. Importantly, once connected, the module is versatile enough to be used across all GM vehicle applications, including those still using older OBD I and OBD II platforms.
GM Vehicles Utilizing the CAN Interface (Examples):
- 05 Buick Allure (3.6L)
- 05 Buick LaCrosse (3.6L)
- 05 Buick Rainier (5.3L)
- 04-05 Buick Rendezvous (3.6L)
- 04-05 Cadillac CTS (3.6L)
- 04-05 Cadillac SRX (3.6L / 4.6L)
- 04-05 Cadillac XLR (4.6L)
- 05 Cadillac STS (3.6L / 4.6L)
- 05 Chevrolet Cobalt (2.2L)
- 05 Chevrolet Corvette (6.0L)
- 05 Chevrolet Equinox (3.4L)
- 05 Chevrolet TrailBlazer (5.3L)
- 05 Chevrolet SSR (6.0L)
- 04-05 Chevrolet Malibu (Specific models/trims – Body/Chassis only initially, then expanded)
- 05 GMC Envoy (5.3L)
- 05 Pontiac G6 (3.5L)
- 05 Pontiac GTO (6.0L)
- 05 Pontiac Pursuit (2.2L)
This list is not exhaustive, but it illustrates the adoption of CAN interface in GM vehicles starting from the mid-2000s, highlighting the necessity of the CANdi module for comprehensive diagnostics on newer models within the Tech2’s coverage range.
What’s Included in the GM Tech2 Package?
When you purchase a GM Tech2 scanner package, you can expect to receive a comprehensive set of tools to get you started:
- Tech-2 Flash Tester Main Unit
- 32 MB PCMCIA Card with Desired Software Applications (Pre-selected based on your order)
- CAN diagnostic interface module (CANdi) and instruction sheet
- RS232 cable and user manual
- RS232-DB9 adapter
- DLC Cable, DLC Loopback Adapter
- 12V Cigarette Lighter Power Cable
- SAE 16/19 Adapter
- NAO 12/19 Adapter
- Battery Power Cable
- TIS 2000 CD
This package ensures you have the essential hardware and software components to begin diagnosing a wide array of supported GM vehicles and brands right out of the box.
GM Tech2 vs. GM MDI: Understanding the Differences
Choosing between the GM Tech2 and GM Multiple Diagnostic Interface (MDI) depends on your specific needs and the vehicles you work on. Here’s a comparison table to highlight the key differences:
| Feature | GM Tech 2 | GM MDI |
|---|---|---|
| Language Support | GM: English, German, Spanish, Japanese, French, Thai, Portuguese, Korean. SAAB/OPEL/HOLDEN/SUZUKI/ISUZU: English primarily, with some other languages depending on brand. | Multi-language: Extensive language options, approximately 30 languages including English, French, German, Japanese, Italian, and more. |
| Software Updates | Via 32MB Software Card replacement. | Not user-updatable in the same way. Software is managed through subscription and PC interface. |
| Activation | No activation required. | Activation is required. |
| Software Source | Can use non-original software cards but compatible with original software for core diagnostics. | Designed to work with original factory software for GM. |
| OS Requirement | Operates independently, no PC connection needed for basic diagnostics. | Requires connection to a PC. |
| Internet | No internet connection needed for operation. | Internet connection may be needed for software installation and updates, and potentially for certain online programming functions (depending on MDI version and software). Initial software install may require internet, and online connectivity can trigger software update prompts which should be avoided if using aftermarket software setups. |
| Vehicle Support | Cars only, no trucks (unless using specific truck adapters). Supports all GM systems from 1992 up to approximately 2014 (software dependent). Brands: GM, SAAB, OPEL, SUZUKI, ISUZU, HOLDEN. | GM cars and trucks from 1990 up to more recent years (e.g., 2019 and beyond, depending on software and subscription). Broader vehicle coverage range, generally supporting newer models than Tech2. |
| Programming | Supports reprogramming but typically requires TIS2000 software in conjunction with the Tech2 for pre-2007 vehicles. | Supports both offline and online programming capabilities, depending on the software subscription and vehicle requirements. Offline programming for some brands like Chevrolet and Opel, but not universally for all makes within its coverage. |
In summary: The Tech2 excels in its standalone operation, robust hardware, and deep dive into older GM systems. It’s a cost-effective solution for workshops specializing in pre-2014 GM vehicles and affiliated brands. The MDI, on the other hand, is geared towards newer vehicles, offering broader coverage and online capabilities, often favored in dealership environments or for those requiring access to the latest GM models and online services.
Frequently Asked Questions about the GM Tech2 Scanner
Q: Can the Tech2 read VIN?
A: Yes, it is capable of reading the Vehicle Identification Number (VIN).
Q: Does the Tech2 work with Hummer H3 models?
A: Yes, the Tech2 is compatible and can perform diagnostics on Hummer H3 models.
Q: Can the Tech2 reset airbags on a 2007 Chevy Tahoe?
A: Yes, airbag reset is supported for this model year and vehicle.
Q: Is Saturn supported by the Tech2?
A: No, Saturn is not officially supported by the GM Tech2 scanner.
Q: Will the Tech2 work on a 2007 Cadillac Escalade?
A: Yes, Cadillac models are included in the software car list, making it compatible with the 2007 Escalade.
Q: Can the Tech2 clear fault codes on a Saab 2005 1.9 TDi?
A: Yes, clearing fault codes is a standard function supported for compatible Saab models.
Q: Does this scanner have coding capabilities?
A: Yes, the Tech2 supports coding. When used with TIS2000 software, it can program cars manufactured before 2007.
Q: Is a 32MB card included, or is it a separate purchase?
A: The GM Tech2 (SP23-B model, as referenced in the original text) typically includes one 32MB card. You select the software you need at the time of purchase. Additional cards (SO22-B) can be bought separately for more software options.
Q: Can the Tech2 send commands to modules and diagnose climate control systems? What’s the effective year range for diagnostics?
A: Yes, the Tech2 can send commands to various modules, including climate control programmers, provided there is communication with the module. The effective year range is generally up to 2014 for diagnostics, depending on the specific vehicle and software version. For 1997 Cadillac DeVille and 2001 Chevrolet Venture, the Tech2 is fully compatible.
Q: Can the Tech2 perform key coding and control unit programming for Opel and Isuzu vehicles?
A: The GM Tech2 is primarily for diagnostics and some programming. Key coding is generally not supported. It can diagnose most Opel and Isuzu vehicles from 1992-2011, but programming for Opel, SAAB, and Suzuki is not a primary function; programming is mainly focused on GM vehicles pre-2007.
Q: Is a dongle included with the Tech2?
A: The standard GM Tech2 package does not include a dongle. If you require a dongle for certain programming functions, specifically with TIS2000, you may need to purchase a TIS2000 CD USB Key separately.
Q: Does the Tech2 function on Windows 7?
A: No, the software for GM Tech2 typically runs best on Windows XP. Compatibility with newer operating systems is not officially supported.
Q: Does the Tech2 support K-LINE communication?
A: Yes, K-LINE communication is supported, particularly relevant for older vehicle models.
Q: Can the Tech2 program Opel, SAAB, and Suzuki vehicles?
A: No, the programming capabilities of the GM Tech2 are primarily for GM vehicles before 2007. Programming for Opel, SAAB, and Suzuki is not a supported feature.
Q: Will the Tech2 diagnose a 2005 GMC Sierra 1500 truck?
A: To diagnose trucks, including a 2005 GMC Sierra 1500, you may need to purchase an additional truck adapter. The standard Tech2 package is typically configured for car diagnostics.
Q: Issues with TIS2000 software installation or identification?
A: If the TIS2000 software came with the Tech2 software package, it may be a limited version or not intended for standalone installation. For full programming capabilities, purchasing a separate, full version of TIS2000 software is recommended.
Q: Encountering errors or blue screen issues after receiving the Tech2?
A: A blue screen issue might indicate a Blue Screen Chip problem, which may require replacement. For other errors, running a self-test (refer to the Tech2 manual) and providing the self-test report to the vendor can help diagnose the issue.
Q: A button is not working on the GM Tech2.
A: For newer Tech2 versions, a button issue might be resolved by a button replacement, or by sending it back for repair. On older Tech2 units with newer software, button incompatibility can occur.
Q: Smoke and voltage issues when using the Tech2.
A: Smoking and voltage spikes (e.g., voltage increasing from 12V to 14V or higher) can indicate incorrect operation or vehicle electrical issues. Always ensure the ignition is turned on before connecting the Tech2, and check vehicle voltage, especially ground connections, as voltage fluctuations, particularly during engine start, can damage the tool. Car voltage should ideally remain stable during diagnostic procedures.
Conclusion: Is the GM Tech2 OBD2 Scanner Right for You?
The GM Tech2 OBD2 scanner remains a powerful and essential tool for anyone working extensively with GM, Saab, Opel, Isuzu, and Holden vehicles manufactured up to around 2014. Its dealer-level diagnostic capabilities, robust hardware, and software versatility make it a worthwhile investment for professional mechanics and serious car enthusiasts alike. While it may not cover the very latest models, its in-depth access to a wide range of popular vehicles and systems provides exceptional value and functionality for its intended applications. If your focus is on maintaining and repairing vehicles within its coverage range, the GM Tech2 is a highly recommended and reliable diagnostic solution.
