DTC P1739: Problem in 3rd Clutch Pressure Switch Circuit NOTE: Record all freeze data and review General Troubleshooting Information before you troubleshoot. 1. Turn the ignition switch ON (II). 2. Measure the voltage between the B24 and B20 or B22 terminals. Is there battery voltage? YES – Go to step 7. NO – Go to step 3. 3. Turn the ignition switch OFF. 4. Disconnect the B (25P) connector from the PCM. 5. Disconnect the 3rd clutch pressure switch connector. 6. Check for continuity between the B24 terminal and body ground. Is there continuity? YES – Repair short to ground in the wire between the B24 terminal and the 3rd clutch pressure switch.
NO – Disconnect the 3rd clutch pressure switch connector and go to step 15. 7. Raise the front of the vehicle, and make sure it is securely supported. 8. Set the parking brake, and block rear wheels securely. 9. Start the engine, cancel the TCS, then shift to D3 position and drive in 3rd gear for more than five seconds. 10. Measure the voltage between the B24 and B20 or B22 terminals. Is there about 0 V? YES – Check for loose terminal fit in the PCM connectors. If necessary, substitute a known-good PCM and