Throttle Position Sensor: Matrix

For testing of throttle position sensor, see Fig 1-Fig 5 . To check for intermittent problems, see INTERMITTENTS in TROUBLE SHOOTING - NO CODES article. Before replacing ECM, check ECM connectors and ground circuits. See ENGINE CONTROL MODULE POWER & GROUND CIRCUITS  under COMPUTERIZED ENGINE CONTROLS.

Fig 1: Testing Throttle Position Sensor - Circuit Description (Matrix)

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Fig 2: Testing Throttle Position Sensor - Wiring Diagram (Matrix)

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Fig 3: Testing Throttle Position Sensor - Steps 1-3 (Matrix)

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Fig 4: Testing Throttle Position Sensor - Steps 4-5 (Matrix)

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Fig 5: Testing Throttle Position Sensor - Steps 6-7 (Matrix)

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