Wire Harness Inspection & Rework Services
Ensuring Reliable Connections and Safe Operations
Wire harnesses are critical components in heavy trucking, aerospace, telecommunications, medical devices, and other high-performance industries. A single defect—whether insufficient soldering, improper crimping, wire damage, or incorrect wire gauge—can cause electrical failures, safety hazards, and costly production delays.
The importance of wire harness and cable harness inspection cannot be overstated, as defects in wire harnesses and cable harnesses can cause malfunctions, safety hazards, or even system failures. Quality Liaison Services (QLS) provides wire harness inspection services to catch and resolve these defects before they lead to larger issues. By ensuring that wire harnesses are properly inspected and tested, manufacturers can ensure that their products meet quality and safety standards and avoid costly recalls and repairs. With a team of IPC/WHMA-A-620 Certified Inspection Specialists (CIS)—a qualification most competitors lack—QLS ensures every harness meets strict industry and customer-specific standards.

Comprehensive Wire Harness Testing Services
Our wire harness testing services cover a wide range of industries, including automotive, aerospace, telecommunications, and medical devices. We can inspect wire harnesses of various sizes, ensuring that every connection and component is thoroughly checked for any defects or issues. Each inspection follows customer-provided work instructions, ensuring thorough evaluations that align with specific production and quality requirements. Our wire harness inspection services include:
- Visual Inspection – Detects frayed wires, weak solder joints, incorrect crimps, missing components, and improper wire gauge-to-terminal pairings.
- Continuity Testing – Verifies electrical flow to prevent faulty connections.
- Labeling and Identification – Ensures compliance with IPC/WHMA-A-620 standards and customer specifications.
- Defect Documentation and Reporting – Provides a detailed record of inspection findings to support corrective actions and quality tracking.
Wire Harness Rework Services
Defective wire harnesses don’t always require full replacement. Our wire harness rework services help manufacturers salvage and restore faulty harnesses to meet specifications and maintain production schedules. We handle:
- Crimping Corrections – Fixing poorly crimped terminals for secure electrical connections.
- Wire and Terminal Replacements – Addressing damaged or incorrectly sized wires and connectors.
- Soldering Adjustments – Repairing weak or faulty solder joints to prevent connectivity failures.
Why Choose QLS?
Don’t take chances with your wire harnesses! Regular inspections are essential to ensure reliable connections and safe operations. At QLS, we are committed to providing the highest quality wire harness inspection services, and our IPC 620-certified team is ready to help. Contact us today to schedule your wire harness inspection and let us help you ensure the safety and reliability of your wire harnesses and take the first step towards peace of mind today.
- Certified Inspection Experts – Our IPC-A-620 CIS-certified team delivers a level of technical skill and compliance that sets us apart.
- Industry-Specific Experience – Proven track record in heavy trucking and other high-performance industries where electrical integrity is critical.
- Custom Inspection Processes – We don’t use generic standards like MPD-7011F; we follow your specific testing requirements to maintain quality consistency.
- Fast, Reliable Service – We help minimize downtime and ensure compliance without slowing production.
Get a Quote for Wire Harness Inspections
Wire harness defects can’t be overlooked. Ensure safety, reliability, and compliance with QLS’s IPC 620 Certified inspection and rework services. Contact us today to discuss your inspection and testing needs.
What Does IPC/WHMA-A-620 Certification Mean?
IPC/WHMA-A-620 is the globally recognized industry standard for wire harness assemblies, ensuring consistent quality and reliability across applications. It is an industry-developed program for individuals and companies engaged in the manufacturing, use, and installation of cable and wire harness assemblies.
At QLS, our IPC 620 Certified technicians go beyond basic inspections by using advanced testing technologies to simulate real-world conditions, measure wire harness performance under stress, and detect hidden defects before they escalate into serious failures. QLS provides clients with detailed reports and recommendations to help them make informed decisions.
This certification means:
- Highly trained inspectors with expert knowledge of wire harness standards and best practices.
- Rigorous testing protocols that ensure compliance with industry and customer requirements.
- Detailed performance reports with actionable insights to help clients make informed decisions about their wire harness quality.
Unlike many competitors, QLS prioritizes certified expertise to deliver the highest level of wire harness inspection services—a critical factor in preventing malfunctions, safety risks, and expensive recalls.