Throttle/Pedal Position Sensor/Switch 'A' Circuit Intermittent

Descripción

This code means the throttle position sensor 'A' is sending erratic or intermittent signals. The computer is detecting problems with the sensor's readings that come and go.

Pasos de reparación

1. 1 Inspect the throttle position sensor (TPS) wiring harness and connector for loose, damaged, or corroded pins and repair as needed.
2. 2 Check the accelerator pedal position sensor (APP) connector for looseness or corrosion and clean or reseat the connection.
3. 3 Wiggle-test the TPS and APP sensor connectors and wiring while monitoring live data to identify intermittent signal dropouts.
4. 4 Clean the throttle body and TPS connector contacts with electrical contact cleaner to remove any corrosion or debris.
5. 5 Check the TPS signal voltage with a multimeter or scan tool while slowly opening the throttle — look for sudden dropouts or erratic readings.
6. 6 Inspect the wiring between the TPS, APP sensor, and the ECM for chafing, bare spots, or broken wires, and repair as needed.
7. 7 Replace the throttle position sensor (TPS) if signal is erratic or drops out intermittently during testing.
8. 8 Replace the accelerator pedal position sensor (APP) if the TPS tests normal and the intermittent fault persists.

Diagnóstico y costo