The Test Passed, The Car Failed: Why Your ISO 11452-2 Report Lies to You (Sometimes)

Split view comparison: idealized EMC lab test setup per ISO 11452-2 on the left vs. the chaotic harness, grounding, and EMI sources in a real vehicle on the right, explaining why tests pass but vehicles fail.

We had a party the day the report came back. Clean sheet. The new ADAS camera module sailed through ISO 11452-2 with flying colors. Radiated immunity? Check. Field strength at 200V/m? No sweat. The lab in Stuttgart gave us the thumbs-up. We shipped the first batch to the assembly plant in Bavaria. Three weeks later, the phones […]