porsche Workshop Repair Guides

Porsche Workshop Service and Repair Manuals

Brake Fluid Solenoid Valve Relay > < Seat Heater Control Module|Service and Repair|Page 218
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ABS Main Relay: Description and Operation

The return pump relay is actuated (with a negative potential) by the control unit if required, and closes.

As soon as the relay has closed/picked up, battery + (terminal 30), is applied to the return pump, which then runs.

NOTE:  The relays cannot be exchanged. When replacement is necessary, the complete hydraulic unit must be replaced.

Brake Fluid Solenoid Valve Relay > < Seat Heater Control Module|Service and Repair|Page 218