ABS MK II - VWClub.BG

- Check wheel-speed sensor and leads for short to ground/short to positive,mix-up, open circuit and loose contacts at controller plug. X1 term. 4 -> X1term. 22- Check condition of connectors.- Excessive wheel bearing clearance.SELF-DIAGNOSIS FLASHING CODE 1243- Turn wheel, rear right and check voltage at controller plug (alternatingvoltage). X1 term. 4 -> X1 term. 22Set value: > 75 mV- Wheel-speed sensor loose or not flat on mount.- Ring gear defective (e.g. corroded, dirty, damaged or loose).- Check number of teeth.Set value: 43- Controller defective.1311 Wheel-speed sensor HLSELF-DIAGNOSIS FLASHING CODE 1311Wheel-speed sensor, rear left- Ignition off.- Pull plug off controller.- Check wheel-speed-sensor winding resistance at controller plug. X1 term. 6 -> X1 term. 24Set value: 0,8...1,4 kOhm- Check wheel-speed sensor and leads for short to ground/short to positive,mix-up, open circuit and loose contacts at controller plug. X1 term. 6 -> X1term. 24- Check condition of connectors.- Excessive wheel bearing clearance.SELF-DIAGNOSIS FLASHING CODE 1311- Turn wheel, rear left and check voltage at controller plug (alternatingvoltage). X1 term. 6 -> X1 term. 24Set value: > 75 mV- Wheel-speed sensor loose or not flat on mount.- Ring gear defective (e.g. corroded, dirty, damaged or loose).- Check number of teeth.Set value: 43- Controller defective.1312 Pressure warning switch and warning contactSELF-DIAGNOSIS FLASHING CODE 1312Pressure warning switch and warning contact- Ignition off.- Detach plug from controller.- Connect up ohmmeter to controller plug term. 9 and 10. (Pressureaccumulator must be charged).Set value: < 5 Ohm- Unscrew closing cover of reservoir and move float.- The warning contact S6 (picture) opens if the float with magnet M2 is movedtowards the lower stop.Contact S5 first switches on brake warning lamp by way of magnet M1.