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Home >> Mazda >> 1993 >> MX-3 L4-1597cc 1.6L >> Repair and Diagnosis >> Transmission and Drivetrain >> Automatic Transmission/Transaxle >> Throttle Position Sensor/Switch >> Testing and Inspection
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Throttle Position Sensor/Switch: Testing and Inspection

Inspection




Inspection of voltage (variable resistance)
1. Connect a circuit tester to 2F terminal of engine control unit. (B6 SOHC [except California])
Connect a circuit tester to 2T terminal of EC-AT control unit. (K8 DOHC and B6 SOHC [California]) 2. Turn the ignition switch ON.
3. Check the voltage.

Voltage
Throttle valve fully closed: 0.1 - 1.1 V
Throttle valve fully open: 3.1 - 4.4 V

4. If not as specified, replace or adjust the throttle sensor.

Inspection of continuity (idle switch)




1. Disconnect the throttle sensor connector.
2. Connect an ohmmeter to the throttle sensor terminal IDL and GND.







3. Insert a feeler gauge between the stopper and the throttle lever and check the continuity between terminals.
4. If not as specified, replace or adjust the throttle sensor.
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