ICC Unit 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 ICC unit for damage, bend and loose connection (unit side and harness side).
OK or NG
- OK : GO TO 2.
- NG : Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect ICC unit connector.

Check resistance between ICC unit harness connector terminals.

TERMINAL RESISTANCE CHART

ICC unit connector	Terminal		Resistance (Approx.)
B13	14	5	54 - 66 Ω

Fig 1: Identifying Resistance Between ICC Unit Harness Connector Terminals

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

OK or NG

OK : Replace ICC unit.
NG : Repair harness between ICC unit and harness connector B34.