Uber disabled the standard collision-avoidance system in the Volvo XC90 that was involved in a fatal self-driving crash. This was revealed by auto-parts maker Aptiv (formerly known as Delphi Automotive) that supplied the vehicle’s radar and camera, in a report by Bloomberg.

“We don’t want people to be confused or think it was a failure of the technology that we supply for Volvo, because that’s not the case,” said Zach Peterson, a spokesman for Aptiv. Peterson made it clear the XC90’s standard driver-assistance system “has nothing to do” with the Uber test vehicle’s autonomous driving system.

In the incident, the self-driving XC90 failed to slow down and crashed into 49-year-old Elaine Herzberg. Uber has since stopped testing its autonomous vehicles throughout North America, and Arizona state governor Doug Ducey has suspended Uber’s ability to test and operate autonomous vehicles on Arizona’s public roadways.

For now, Uber has declined to comment on whether it tampered with the XC90’s standard collision-avoidance system. A Volvo spokesman said the carmaker will not speculate on the cause of the incident and is awaiting a full investigation report from the National Transportation Safety Board and that National Highway Traffic Safety Administration.

Meanwhile, Intel’s Mobileye, which makes chips and sensors used in collision-avoidance systems and is a supplier to Aptiv, tested its own software following the incident. Its system was capable of detecting Herzberg one second before impact when a video of the Uber incident was played on a television monitor.

“The video released by the police seems to demonstrate that even the most basic building block of an autonomous vehicle system, the ability to detect and classify objects, is a challenging task. It is this same technology that is required, before tackling even tougher challenges, as a foundational element of fully autonomous vehicles of the future,” wrote Amnon Shashua, CEO of Mobileye, on Intel’s website.