TD3 - Check TR Circuit For Short to Power and Ground

- Key "OFF".

- Transmission Range (TR) sensor disconnected.

- Breakout box installed, Powertrain Control Module (PCM) disconnected.

- Measure resistance between test pin 30 and test pins 37/57, 40/60 and 46 at the breakout box.

- Measure resistance between test pin 30 at the breakout box and chassis ground.

- Is each resistance greater than 10,000 ohms?

Yes -- Go to TD4.

No -- Service short circuit(s). Remove breakout box. Reconnect all components. Rerun self test.