dh91: Measure Throttle Position Signal Voltage While Exercising TP Sensor
| Steps | _Key Off, wait 10 seconds
_Disconnect processor 60 pin connector. Inspect for damaged pins, corrosion, loose wires, etc. Service as necessary _Install breakout box and reconnect processor _VOM or STAR LED still connected to STO as in previous step _Connect a DVOM from Test Pin 47 to Test Pin 46 _DVOM on 20 volt scale _Key On, Engine Off _While observing DVOM, repeat Step DH90 |
| Result | Does the fault occur below 4.25 volts? |
| Direction | YES
Disconnect and inspect connectors. If connector and terminals are good, replace TP sensor. Refer to Shop Manual Group 24. Clear Continuous Memory Code 53. Refer to Appendix in Section 16. Rerun Quick Test. NO Throttle Position Sensor overtravel may have caused the Continuous Memory Code 53. Verify harness integrity, GO to DH92 |
| 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 | http://www.tbirdheritage.com/turbocoupe/articles/ |