Inspection Between TCM and Data Link Connector Circuit

WARNING: This page is about a different car, the 2006 Nissan Quest. 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 E26
  - Harness connector M91
OK or NG

OK: GO TO 2.

NG: Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

With 4A/T

Disconnect TCM connector and harness connector E26.

Check continuity between TCM harness connector (A) and harness connector (B).

CONTINUITY REFERENCE CHART

A		B		Continuity
Connector	Terminal	Connector	Terminal	Continuity
E142	5	E26	5	Yes
E142	6	E26	14	Yes

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

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

With 5A/T

Disconnect TCM connector and harness connector E26.

Check continuity between TCM harness connector (A) and harness connector (B).

CONTINUITY REFERENCE CHART

A		B		Continuity
Connector	Terminal	Connector	Terminal	Continuity
E143	3	E26	5	Yes
E143	4	E26	14	Yes

Fig 2: Identifying Continuity Between TCM 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

Check continuity between harness connector (A) and data link connector (B).

CONTINUITY REFERENCE CHART

A		B		Continuity
Connector	Terminal	Connector	Terminal	Continuity
M91	5	M22	6	Yes
M91	14	M22	14	Yes

Fig 3: Identifying Continuity Between Harness Connector (A) And Data Link 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.