I’m investigation an abs fault with the icarsoft v3.0. The car brakes are working but coming off the brakes cause some pulling to the left like the release isn’t equal. Also abs never comes on. Before I get a rebuilt brake kit I checked the faults hoping there would be one abs sensor on the blink. However all 4 were faulty plus the speed control module. So assuming all wouldn’t check out at the same time. Any further ideas? Car is on a CTEK charger. It’s a 2008 XKR.

 

hard to believe all 4 sensors are on the blink. How old is the battery? Have you physically had a look at the brakes?

 

Before rebuilding a caliper the dragging brake should be warmer to the touch on the left side, just from rolling around town.

 

Collapsed rubber flex hose? Check for pressure at the bleeder after pedal is released. If you still have pressure check for pressure before the flex hose after pedal is released . Flex hose may be holding pressure, very common in older cars.