Infiniti QX56 (Z62). Manual - part 1046

PWO-22

< BASIC INSPECTION >

[AC 120 V OUTLET]

DIAGNOSIS AND REPAIR WORK FLOW

>> GO TO 2.

2.

SYMPTOM CHECK

Check the symptom from the customer's information.

>> GO TO 3.

3.

FAIL-SAFE ACTIVATION CHECK

Check that the symptom is applied to the fail-safe activation.

Does the fail-safe activate?

YES

>> GO TO 4.

NO

>> GO TO 5.

4.

SYSTEM DIAGNOSIS

Perform the system diagnosis for the system that the fail-safe activates. Specify the malfunctioning part.

>> GO TO 6.

5.

SYMPTOM DIAGNOSIS

Perform the symptom diagnosis. Specify the malfunctioning part.

>> GO TO 6.

6.

MALFUNCTIONING PART REPAIR

Repair or replace the malfunctioning part.

>> GO TO 7.

7.

REPAIR CHECK (OPERATION CHECK)

Check the operation of AC 120 V outlet.

Does it operate normally?

YES

>> INSPECTION END

NO

>> GO TO 3.

PWO

POWER SUPPLY AND GROUND CIRCUIT

PWO-23

< DTC/CIRCUIT DIAGNOSIS >

[AC 120 V OUTLET]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000006257089

1.

CHECK FUSE

Check that the following fuse is not blown.

Is the fuse fusing?

YES

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

NO

>> GO TO 2.

2.

CHECK INVERTER UNIT POWER SUPPLY CIRCUIT 

Check voltage between inverter unit harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace the inverter unit power supply circuit.

3.

CHECK INVERTER UNIT GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the inverter unit connector. 

3.

Check for continuity between inverter unit harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace the inverter unit ground circuit. 

Signal name

Fuse No.

Battery power supply

79

Terminal

Condition

Voltage

(Approx.)

(+)

(–)

Inverter unit

Ground

Ignition switch

Connector

Terminal

M143

4

OFF

Battery voltage

Inverter unit

Ground

Continuity

Connector

Terminal

M143

8

Existed

PWO-24

< DTC/CIRCUIT DIAGNOSIS >

[AC 120 V OUTLET]

AC 120 V OUTLET MAIN SWITCH POWER SUPPLY CIRCUIT

AC 120 V OUTLET MAIN SWITCH POWER SUPPLY CIRCUIT

Diagnosis Procedure

INFOID:0000000006257095

1.

CHECK FUSE

Check that the following fuse is not blown.

Is the fuse fusing?

YES

>> Replace the blown fuse after repairing the affected circuit if a fuse is blown.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY FOR AC 120 V OUTLET MAIN SWITCH

1.

Turn ignition switch ON.

2.

Check for voltage between the AC 120 V main switch harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair the AC 120 V main switch power supply circuit.

Signal name

Fuse No.

Ignition power supply

3

Terminals

Condition

Voltage

(Approx.)

(+)

(–)

AC 120 V outlet main switch

Ground

Ignition switch

Connector

Terminal

M144

1

OFF

0 V

ON

12 V

PWO

AC 120 V OUTLET MAIN SWITCH INPUT SIGNAL CIRCUIT

PWO-25

< DTC/CIRCUIT DIAGNOSIS >

[AC 120 V OUTLET]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

AC 120 V OUTLET MAIN SWITCH INPUT SIGNAL CIRCUIT

Diagnosis Procedure

INFOID:0000000006257093

1.

CHECK HARNESS BETWEEN INVERTER UNIT AND AC 120 V OUTLET MAIN SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect inverter unit connector and AC 120 V outlet main switch connector.

3.

Check for continuity between the inverter unit harness connector and AC 120 V outlet main switch har-
ness connector.

4.

Check for continuity between inverter unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair the harnesses or connectors.

2.

CHECK AC 120 V OUTLET MAIN SWITCH INPUT SIGNAL

1.

Connect inverter unit connector and AC 120 V outlet main switch connector.

2.

Turn ignition switch ON.

3.

AC 120 V outlet main switch ON.

4.

Check for voltage between the inverter unit harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 3.

3.

CHECK AC 120 V OUTLET MAIN SWITCH

1.

Turn ignition switch OFF.

2.

Remove AC 120 V outlet main switch.

3.

Check AC 120 V outlet main switch. Refer to 

PWO-25, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace AC 120 V outlet main switch.

Component Inspection

INFOID:0000000006257096

1.

CHECK AC 120 V OUTLET MAIN SWITCH

Check continuity of AC 120 V outlet main switch.

Inverter unit

AC 120 V outlet main switch

Continuity

Connector

Terminal

Connector

Terminal

M143

6

M144

3

Existed

Inverter unit

Ground

Continuity

Connector

Terminal

M143

6

Not existed

Terminals

Condition

Voltage

(Approx.)

(+)

(–)

Inverter unit

Ground

AC 120 V out-

let main 

switch

Connector

Terminal

M143

6

OFF

0 V

ON

12 V