Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK TCM POWER CIRCUIT (PART 1)

Turn ignition switch OFF.
Disconnect TCM connector.

Check voltage between TCM harness connector terminals and ground.

+		-	Voltage
TCM
Connector	Terminal
F89	45	Ground	10 - 16 V
	46

Is the inspection result normal?

YES

GO TO STEP 2 .

GO TO STEP 4 .

CHECK TCM POWER CIRCUIT (PART 2)

Check voltage between TCM harness connector terminals and ground.

+		-	Condition	Voltage
TCM
Connector	Terminal
F89	47	Ground	Ignition switch ON	10 - 16 V
			Ignition switch OFF	Approx. 0 V
	48		Ignition switch ON	10 - 16 V
			Ignition switch OFF	Approx. 0 V

Is the inspection result normal?

YES

GO TO STEP 3 .

GO TO STEP 5 .

CHECK TCM GROUND CIRCUIT

Check continuity between TCM harness connector terminals and ground.

TCM		-	Continuity
Connector	Terminal
F89	41	Ground	Existed
	42

Is the inspection result normal?

YES

Check intermittent incident. Refer to Intermittent Incident .

Repair or replace malfunctioning parts.

DETECT MALFUNCTION ITEMS (PART 1)
Check the following items:
- Open or short circuit in harness between battery positive terminal and TCM connector terminal 45, and 46.
- 10 A fuse No. 60, located in the fuse, fusible link and relay box). Refer to Terminal Arrangement .
Is the inspection result normal?

YES

Check intermittent incident. Refer to Intermittent Incident .

NO

Repair or replace malfunctioning parts.

CHECK CIRCUIT BETWEEN IPDM E/R AND TCM (PART 1)

Turn ignition switch OFF.
Disconnect IPDM E/R connector.

Check continuity between IPDM E/R harness connector terminal and TCM harness connector terminals.

IPDM E/R		TCM		Continuity
Connector	Terminal	Connector	Terminal
F50	61	F89	47	Existed
			48

Is the check result normal?

YES

GO TO STEP 6 .

Repair or replace malfunctioning parts.

CHECK CIRCUIT BETWEEN IPDM E/R AND TCM (PART 2)

Check continuity between IPDM E/R harness connector terminal and ground.

IPDM E/R		-	Continuity
Connector	Terminal
F50	61	Ground	Not existed

Is the check result normal?

YES

GO TO STEP 7 .

Repair or replace malfunctioning parts.

DETECT MALFUNCTIONING ITEMS (PART 2)
Check the following items:
- Open or short circuit in harness between ignition switch and IPDM E/R. Refer to Wiring Diagram .
- 10 A fuse No. 43, located in the IPDM E/R). Refer to Fuse, Connector and Terminal Arrangement .
- IPDM E/R
Is the check result normal?

YES

Check intermittent incident. Refer to Intermittent Incident .

NO

Repair or replace malfunctioning parts.