TE12 - Check TFT Circuit For Short to VPWR

- Key "OFF".

- Transmission connector disconnected.

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

- Measure resistance between Transmission Fluid Temperature (TFT) test pin and test pins 37/57 at breakout box.

TFT Test Pin Number
AODE/4R70W transmission pin 49
E4OD transmission pin 42

- Is each resistance greater than 10,000 ohms?

Yes -- Replace PCM. Remove breakout box. Reconnect all components. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)

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