Checking the sensor
With the ignition off, disconnect the sensor connector and measure the resistance of the circuit between contacts 2 and 3. Nominal value: 1.6-2.4 Ohm.
By opening and closing the throttle valve, check the change in the output voltage.
TPS Characteristics
| State | Voltage |
| The damper is closed | 0.2-0.8 V |
| The damper is open | 4.3-4.8 V |
Checking the wiring
With the ignition on, measure the voltage between the specified contacts of the wire portion of the connector.
| Circuit under test | Nominal voltage |
| Contact 1 - "ground" | 5 V |
| Contact 2 - "ground" | 5 V |
| Contact 3 - "ground" | 0 B |
| Contact 2 - Contact 3 | Below 5V by about 200mV |
1. Sensor signal
2. Power supply (+5 V)
3. Sensor "mass"
Use an ohmmeter to measure the resistance between contacts 1 and 2. Nominal value: ∞ Ohm.