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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 64 (Automatic Transmission Diagnosis - Re4R01A) >> Diagnostic Tests >> DTC P0740: Torque Converter Clutch Solenoid Valve >> Diagnostic Procedure

Diagnostic Procedure

WARNING: This page is about a different car, the 2002 Infiniti QX4, 2001 Nissan Pathfinder, and 2001 Infiniti QX4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch to OFF position. Disconnect transmission terminal cord assembly 8-pin connector located on right side of transmission. Measure resistance between transmission terminal cord assembly 8-pin connector terminal No. 7 and ground. Resistance should be 10-20 ohms. If resistance is within specifications, go to next step. If not, remove oil pan and check harness for open or short. Repair as necessary. Inspect TCC solenoid valve. See SOLENOID VALVES  under COMPONENT TESTS.
  2. Turn ignition switch to OFF position. Disconnect TCM connector. Check for open, short to ground and short to voltage between transmission terminal cord assembly 8-pin connector terminal No. 7 and TCM connector terminal No. 3. If circuit is okay, go to next step. If open or short is found in circuit, repair as necessary. After repairs, go to next step.
  3. Road test and perform DTC CONFIRMATION PROCEDURE . If DTC is still present, recheck applicable TCM input/output signals. See PIN VOLTAGE TESTS . If any voltage measured is not as specified, check TCM connector terminals for damage or loose connection to harness connector. Repair as necessary.
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