BCM 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 BCM 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 BCM connector.

Check resistance between BCM harness connector terminals.

TERMINAL RESISTANCE CHART

BCM connector	Terminal		Resistance (Approx.)
M18	39	40	54 - 66 Ω

Fig 1: Identifying Resistance Between BCM Harness Connector Terminals

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

OK or NG

OK : Replace BCM. Refer to "BCM ".
NG : Repair harness between BCM and data link connector.