TCM Circuit Inspection

WARNING: This page is about a different car, the 2006 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect battery cable from the negative terminal.
3. Check terminals and connectors of TCM for damage, bend and loose connection (control module side and harness side).
OK or NG

OK: GO TO 2.

NG: Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect TCM connector.
Check resistance between TCM harness connector terminals.

TCM CONNECTOR TERMINAL RESISTANCE

TCM connector	Terminal		Resistance (Approx.)
F56	5	6	54 - 66 Ω

OK or NG

OK: Replace TCM.

NG: Repair harness between TCM and ECM.

Fig 1: Checking Resistance Between TCM Harness Connector Terminals

Courtesy of NISSAN MOTOR CO., U.S.A.