GMW3172 Testing For Electrical/Electronic Components – Environmental/Durability

Overview of GMW3172

General Motors (GM) GMW3172 standard applies to electrical/electronic (E/E) components for passenger or commercial vehicles and trucks. The standard describes the environmental and durability tests for E/E components based on mounting location.

GMW3172 specifies environmental/durability requirements and analytical/development/validation (A/D/V) activities for electrical/electronic components that are used in a vehicle environment to ensure reliability over a lifetime.

GMW3172 Testing is applied in 4 testing phases:

• Analysis: The earliest of the phases involves component design and improvement. This phase should be use to design reliability and robustness into the component.
• Development: These actives are performed on the first samples to provide a qualitative evaluation of the samples and improve the initial design.
• Design Validation (DV): This phase is meant to provide a quantitative and qualitative verification of the component design. It should include environmental, durability and reliability actives on production intent designs and materials.
• Product Validation (PV): This phase is meant to provide a quantitative and qualitative verification of environmental, durability and reliability actives on samples made on production tooling and manufacturing process.

Testing for the phases are completed in multiple test legs that encompass initial sample inspection and functional checks, electrical and EMC testing, environmental testing, corrosion, vibration and other mechanical testing.  No matter which phase or test leg your component is in, TÜV SÜD can support it! 

Testing Capabilities

TÜV SÜD's vast experience and continuous monitoring control equipment is ready to assist your LIN, CAN, and discrete I/0 components through all of the GMW3172 Testing Requirements, including:

• Visual Inspection and Dissection – DRBTR
• Cross Section and Inspection
• Parasitic Current
• Battery Voltage Dropout
• Sinusoidal Superimposed Voltage
• Pulse Superimposed Voltage
• Discrete Digital Input Threshold Voltage
• Crank Pulse Capability and Durability
• Switched Battery Lines
• Battery Line Transients
• Vibration with Thermal Cycling
• Mechanical Shock – Pothole
• Mechanical Shock – Collision
• Mechanical Shock – Closure Slam
• Crush For Housing – Elbow Load , Foot Load
• GMW3191 Connector Test
• Connector Installation Abuse – Side Force, Foot load
• Free Fall
• Fretting corrosion Degradation
• High Temperature Degradation
• Thermal Shock Air To Air (TS)
• Powered Temperature Cycle (PTC)
• Thermal Shock/Water Splash
• Humid Heat Cyclic (HHC)
• Humid Heat Constant (HHCO)
• Salt Mist
• Salt Spray
• Dust
• Water
• Water Freeze

Additional Testing Capabilities

TÜV SÜD has multiple locations with a wide range of capabilities to support your testing which include but are not limited to: