Anti-Lock Brake System (ABS) 911 Carrera 4 (996) · Hydraulic unit (Serv. No. 4530) Relay (Servo N

Anti-Lock Brake System (ABS) 911 Carrera 4 (996) Hydraulic unit (Serv. No. 4530) Relay (Servo No. 4552/4554) Near the brake booster (see Fig. 367_98). The pump relay and the solenoidvalve relay Same position as the ABS hydraulic unit are attached to a holder behindthe PSM control in the 911 Carrera (996). module. Brake pressure sensor Switch for PSM (Serv. No. 4563) Is screwed in/integrated into the booster pump. The PSM OFFswitch (rocker switch) -to switch PSMto passive/active mode -is located in the centre console. 388_98 PSM control module (Serv. No. 4562) The PSM control module is installed underneath a cover in the front~eft area of the luggage compartment. The control module connector can only be removed after the control module has been removed. 45 -108 45 PSM component arrangement C4_45107 Printed in Germany -15, 1998