Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK STEP MOTOR CIRCUIT

Turn ignition switch OFF.
Disconnect TCM connector.

Check resistance between TCM vehicle side harness connector terminals.

TERMINAL RESISTANCE REFERENCE

TCM vehicle side harness connector			Resistance (Approx.)
Connector	Terminal		Resistance (Approx.)
F15	27	28	30.0 Ω
F15	29	30	30.0 Ω

Fig 1: Checking Resistance Between TCM Vehicle Side Harness Connector Terminals

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

Check resistance between TCM vehicle side harness connector terminals and ground.

TERMINAL RESISTANCE REFERENCE

TCM vehicle side harness connector		Ground	Resistance (Approx.)
Connector	Terminal
F15	27		15.0 Ω
	28
	29
	30

Is the inspection result normal?

YES: GO TO 5.

NO: GO TO 2.

Fig 2: Checking Resistance Between TCM Vehicle Side Harness Connector Terminals And Ground

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

CHECK HARNESS BETWEEN TCM AND CVT UNIT (STEP MOTOR) (PART 1)

Disconnect CVT unit connector.
Check continuity between TCM vehicle side harness connector terminals and CVT unit vehicle side harness connector terminals.

TERMINAL CONTINUITY REFERENCE

TCM vehicle side harness connector		CVT unit vehicle side harness connector		Continuity
Connector	Terminal	Connector	Terminal	Continuity
F15 (A)	27	F46 (B)	9	Existed
	28		8
	29		7
	30		6

Is the inspection result normal?

YES: GO TO 3.

NO: Repair or replace damaged parts.

Fig 3: Checking Continuity Between TCM And CVT Unit Vehicle Side Harness Connector Terminals

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

CHECK HARNESS BETWEEN TCM AND CVT UNIT (STEP MOTOR) (PART 2)

Check continuity between TCM vehicle side harness connector terminals and ground.

TERMINAL CONTINUITY REFERENCE

TCM vehicle side harness connector		Ground	Continuity
Connector	Terminal
F15	27		Not existed
	28
	29
	30

Is the inspection result normal?

YES: GO TO 4.

NO: Repair or replace damaged parts.

Fig 4: Checking Continuity Between TCM Vehicle Side Harness Connector Terminals And Ground

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

CHECK STEP MOTOR
Check step motor. Refer to "COMPONENT INSPECTION (STEP MOTOR) ".

Is the inspection result normal?

YES: GO TO 5.

NO: Replace transaxle assembly. Refer to "EXPLODED VIEW ".
DETECT MALFUNCTIONING ITEMS
Check TCM connector pin terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES: Replace TCM. Refer to "EXPLODED VIEW ".

NO: Repair or replace damaged parts.