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P0123- TPS/APP CIRCUIT HIGH For the Transmission circuit diagram (Refer to ) (Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC - 45RFE/ For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes RELATED ENGINE TPS/APPS DTC’S PRESENT POWERTRAIN CONTROL MODULE Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 - TRANSMIS- Theory of Operation Due to the integration of the Powertrain and Transmission Control Modules the New Generation Control Module III The 5.7L V-8 Accelerator Pedal Position Sensor (APPS) is a linear potentiometer that provides the PCM with a Diagnostic Test 1. DETERMINING IF RELATED ENGINE TPS/APPS DTC’S ARE PRESENT With the scan tool, check Engine DTC’s, this includes all one trip failures. Are there any Engine TPS/APPS DTCs present? Yes >> Refer to the Drivability category and perform the appropriate symptom. No >> Go To 2 HB AUTOMATIC TRANSMISSION 545RFE - ELECTRICAL DIAGNOSTICS 21 - 353 |