I recently bought an R52 MCS
and currently facing a intermittent problem with ASC and check engine light. I drove the car to a dealer and when he plugged the OBD scanner he
found a P0341 fault (camshaft error) and an ASC/ABS unit CAN BUS communication error.
As the car runs fine and I have recently replaced the camshaft sensor, he just reset the faults and he said that I should drive the car and check what will happen.
Now after a couple of weeks driving, I have observed the following:
1. The ASC light may or may not come on when i turn the key without cranking or just after cranking. If it doesn't come on at this time it will stay off until the engine is off.
2. If I reset the camshaft error (which causes the check engine light to come on) through the OBD, and the ASC light doesn't come on the check engine will not come on either.
So far I have checked the relevant connectors and system grounds and replaced the camshaft sensor. The battery is new.