Diagnosis Conditions

Ignition (approx. 30 sec.)
Battery voltage > 7 V

Fig 1: DTC P1578 Fault Conditions

Courtesy of PORSCHE OF NORTH AMERICA, INC.

NOTE: The system operates in pedal sensor standby mode, i.e. the angle of the accelerator pedal is calculated from the residual potentiometer signal. The maximum pedal value is limited to 40% and the increase in the pedal value equals 10% per sec. maximum.