Hello! With my SLK 230 compressor R170 BJ 1997 the BAS/ASR light shines some time after the start. Misreading results: – C1200 error brake light switch – C1314 solenoid valve A7/3 (hydraulic unit traction system) – power supply Faulty – C1020 CAN communication disturbed I have already changed the brake light switch, no success. K40 I have already checked, i.o. now I want to check the power supply of the ASR hydraulics, but how? I have the dic Where is the corresponding relay located? What is it called? Where are all the relays installed in the R170 anyway? Does anyone have a schematic of this problem? Thanks for the help! Andi