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DTC 11: Control Unit

Check ABS control unit connectors and wiring harness for damage. See WIRING DIAGRAMS  . Ensure a good ground exists at ABS control unit ground terminals No. 28 and 29. See Fig 1 . Ensure voltage at terminal No. 15 is more than 9.5 volts. If connectors, wiring harness, voltage and ABS control unit ground terminals are okay, replace ABS control unit.

Fig 1: Identifying Control Unit Terminals
G96I20550Courtesy of PORSCHE OF NORTH OF AMERICA, INC.