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TM-98 < DTC/CIRCUIT DIAGNOSIS > [CVT: RE0F09B] P1740 SELECT SOLENOID P1740 SELECT SOLENOID Description INFOID:0000000009719511 • The lock-up select solenoid valve controls lock-up clutch pressure or forward clutch pressure (reverse brake pressure). • When controlling lock-up clutch, the valve is turned OFF. When controlling forward clutch, it is turned ON. DTC Logic INFOID:0000000009719512 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE CAUTION: Always drive vehicle at a safe speed. 1. CHECK DTC DETECTION With CONSULT 1. Turn ignition switch ON. 2. Select “Data Monitor” in “TRANSMISSION”. 3. Start engine and maintain the following conditions for at least 5 consecutive seconds. With GST Follow the procedure “With CONSULT”. Is “P1740” detected? YES >> Go to NO >> Check intermittent incident. Refer to GI-44, "Intermittent Incident" . Diagnosis Procedure INFOID:0000000009719513 1. CHECK LOCK-UP SELECT SOLENOID VALVE CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect TCM connector. 3. Check resistance between TCM vehicle side harness connector terminal and ground. Is the inspection result normal? YES >> GO TO 5. NO >> GO TO 2. 2. CHECK HARNESS BETWEEN TCM AND CVT UNIT (LOCK-UP SELECT SOLENOID VALVE) (PART 1) 1. Disconnect CVT unit connector. 2. Check continuity between TCM vehicle side harness connector terminal and CVT unit vehicle side har- DTC Trouble diagnosis name DTC is detected if... Possible cause P1740 Lock-up Select Solenoid • Normal voltage is not applied to solenoid due to cut line, short, etc. • TCM detects as irregular by comparing target value with monitor value. • Harness or connectors (Solenoid circuit is open or shorted.) • Lock-up select solenoid valve RANGE : “D”, “N” and “L” position (At each time, wait for 5 seconds.) TCM vehicle side harness connector Ground Resistance (Approx.) Connector Terminal F23 37 6.0 – 19.0 Ω |