Throttle Position Sensor Inspection

THROTTLE POSITION SENSOR SIGNAL
1. Turn the ignition switch ON. Do not start the engine.




2. Connect a voltmeter to terminals TT and E1.




3. While slowly depressing the accelerator pedal, check that TT terminal voltage rises sequence.
If the voltage does not change in proportion to the throttle opening angle, there is a malfunction in the throttle position sensor or circuit.