TF2 - Check TSS/OSS Harness Circuit For Short to Power/Ground

- Key "OFF".

- Turbine Shaft Speed (TSS) / Output Shaft Speed Sensor (OSS) disconnected.

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

- Measure resistance between test pin 5 and test pins 37/57 at breakout box.

NOTE: Some applications may have a 4.7K ohm resistor to ground.

- Measure resistance between test pin 5 and test pins 40/60 and 46 at breakout box.

- Is each resistance greater than 10,000 ohms?

Yes -- Remove breakout box. Reconnect PCM. Go to TF3. TF3 - Check TSS or OSS Resistance

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