Inspection Between ICC Sensor and ICC Unit Circuit

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 following terminals and connectors for damage, bend and loose connection (connector side and harness side).
  - Harness connector E34
  - Harness connector B40
OK or NG
- OK : GO TO 2.
- NG : Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect ICC sensor connector and harness connector E34.

Check continuity between ICC sensor harness connector (A) and harness connector (B).

TERMINAL CONTINUITY CHART

A		B		Continuity
Connector	Terminal	Connector	Terminal	Continuity
E42	2	E34	24	Yes
E42	3	E34	23	Yes

Fig 1: Identifying Continuity Between ICC Sensor Harness Connector (A) And Harness Connector (B)

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

OK or NG

OK : GO TO 3.
NG : Repair harness.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect ICC unit connector.

Check continuity between harness connector (A) and ICC unit harness connector (B).

TERMINAL CONTINUITY CHART

A		B		Continuity
Connector	Terminal	Connector	Terminal	Continuity
B40	24	B13	14	Yes
B40	23	B13	5	Yes

Fig 2: Identifying Continuity Between Harness Connector (A) And ICC Unit Harness Connector (B)

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

OK or NG

OK : Connect all the connectors and diagnose again. Refer to "TROUBLE DIAGNOSES WORK FLOW ".
NG : Repair harness.