TC22 - Check Shift Solenoid Circuit For Short to Ground

- Key "OFF".

- Transmission 12-pin connector disconnected.

- Powertrain Control Module (PCM) disconnected.

- Measure resistance between suspect shift solenoid circuit at transmission vehicle harness connector and chassis ground.

- Measure resistance between suspect shift solenoid circuit and the other circuits at transmission 12-pin vehicle harness connector.

- Are all resistances greater than 10,000 ohms?

Yes -- Go to TC23. TC23 - Check Shift Solenoid Circuit Continuity

No -- Service short. Reconnect all components. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)