Component Inspection

P0121 Throttle/Pedal Position Sensor/Switch \'A\' Circuit Range/Performance

Inspection/Repair - Component Inspection

Component Inspection

1. Ignition "OFF"
2. Disconnect TPS connector.
3. Measure resistance between power terminal and ground terminal of TPS connector. (Component side)

Specification :Approx. 1.6 - 2.4 kOhms at all throttle position




4. With still TPS connector disconnected, measure resistance between signal terminal and ground terminal of TPS connector. (Component side)
5. Operate the throttle valve slowly from the idle position to the full open position and check the resistance changes smoothly in proportion with the throttle valve opening angle.

Specification :0.71 - 1.38 kOhms at closed throttle valve, 2.7 kOhms at wide open throttle




6. Is resistance within the specification?