TC23 - Check Shift Solenoid Circuit Continuity
- Key "OFF".
- Transmission 12-pin connector disconnected.
- Install breakout box or 4EAT Tester, leave Powertrain Control Module (PCM) disconnected.
- Measure resistance between suspect shift solenoid test pin at the breakout box and shift solenoid circuit at transmission 12-pin vehicle harness connector.
- Is resistance less than 5.0 ohms?
Yes -- Go to TC24. TC24 - Check Shift Solenoid For Short to Power In Transmission
No -- Service open circuit. Reconnect all components. Rerun quick test. Quick Test Appendix (Detailed Testing Instructions)