db21: Check for VREF at Throttle Position Sensor
| Steps | _Key OFF, wait 10 seconds
_DVOM on 20 volt scale _Disconnect TP sensor _Key ON, Engine OFF _Measure voltage at the TP vehicle harness connector betwen VREF and SIGNAL RETURN |
| Result | Is voltage between 4.0 volts and 6.0 volts? |
| Direction | YES
Reconnect TP sensor GO to Continue NO GO to Continue |
| Component | Throttle Position Sensor |
| Description | The TPS provides the EEC with a signal proportional to opening angle of the throttle body throttle plates, which informs the EEC the movement and position of the throttle plate. |
| Location | Mounted on the throttle body |
| Wire Colors | Dark Green with Light Green stripe
Orange with White stripe Black with White stripe |
| Image |  |