DTC P1503: Throttle Jacking Unit, Position Error-Signal Implausible: Diagnosis/Troubleshooting

Fig 1: P1503 Work Instruction (Step 1 Through 5)

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Remove connector of throttle part:

Fig 2: Locating Throttle Unit Wiring Harness Connector

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Fig 3: P1503 Work Instruction (Step 6 Through 8)

Courtesy of PORSCHE OF NORTH AMERICA, INC.