DH12 - Check TP Circuit Continuity

- Key "OFF".

- Throttle Position (TP) sensor disconnected.

- Disconnect Powertrain Control Module (PCM). Inspect for damaged or pushed out pins, corrosion, loose wires, etc. Service as necessary.

- Install breakout box, leave PCM disconnected.

- Measure resistance between TP circuit at the TP sensor vehicle harness connector and test pin 47 at the breakout box.

- Is the resistance less than 5.0 ohms?

Yes -- Go to DH13. DH13 - Check TP Circuit For Shorts to Ground

No -- Service open circuit. Remove breakout box. Reconnect all components. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)