Engine Revolution Signal Circuit

WARNING: This page is about a different car, the 2002 Nissan Sentra, 2002 Infiniti G20, 2001 Nissan Sentra, and 2001 Infiniti G20. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For additional information, see DTC P1320 in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

NOTE: For circuit reference, see CONNECTOR IDENTIFICATION and WIRING DIAGRAMS .

Start engine and let idle. Check voltage between TCM terminal No. 39 and ground. Voltage should vary from .5-1.5 volts. If voltage is as specified, 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 at harness connector. Repair as necessary. If TCM terminals and harness connector are okay, replace TCM.