TCM Circuit Inspection

WARNING: This page is about a different car, the 2006 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check terminals and connector of A/T assembly 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 A/T assembly connector.

Check resistance between A/T assembly harness connector terminals.

TERMINAL RESISTANCE CHART

A/T assembly connector	Terminal		Resistance (Approx.)
F9	3	8	54 - 66 Ω

Fig 1: Identifying Resistance Between A/T Assembly Harness Connector Terminals

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

OK or NG

OK : Replace control valve with TCM.
NG : Repair harness between A/T assembly and harness connector F14.