Infiniti QX56 (Z62). Manual - part 618

 

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Infiniti QX56 (Z62). Manual - part 618

 

 

EC-450

< DTC/CIRCUIT DIAGNOSIS >

[VK56VD]

P1574 ICC VEHICLE SPEED SENSOR

NO

>> Perform Diagnosis Procedure corresponding to the DTC indicated.

2.

CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”

Refer to 

BRC-40, "CONSULT-III Function"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Perform Diagnosis Procedure corresponding to the DTC indicated.

3.

CHECK DTC WITH “COMBINATION METER”

Check combination meter function.
Refer to 

MWI-30, "CONSULT-III Function"

.

>> INSPECTION END

P1606 VVEL CONTROL MODULE

EC-451

< DTC/CIRCUIT DIAGNOSIS >

[VK56VD]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

P1606 VVEL CONTROL MODULE

DTC Logic

INFOID:0000000006217951

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 10 V or more at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON and wait at least 1 second.

2.

Check DTC.

Is DTC detected?

YES

>> Go to 

EC-451, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006217952

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Erase DTC.

3.

Perform DTC Confirmation Procedure.
See 

EC-451, "DTC Logic"

.

Is the DTC P1606 displayed again?

YES

>> Replace VVEL control module. Refer to 

EC-536, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1606

VVEL CONTROL MODULE
(VVEL control module)

• VVEL control module calculation function is 

malfunctioning.

• VVEL EEP-ROM system is malfunctioning.

• VVEL control module

EC-452

< DTC/CIRCUIT DIAGNOSIS >

[VK56VD]

P1607 VVEL CONTROL MODULE

P1607 VVEL CONTROL MODULE

DTC Logic

INFOID:0000000006217953

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 10 V or more at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start engine and let it idle for at least 1 second.

2.

Check DTC.

Is DTC detected?

YES

>> Go to 

EC-452, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006217954

1.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Erase DTC.

3.

Perform DTC Confirmation Procedure.
See 

EC-452, "DTC Logic"

.

Is the DTC P1607 displayed again?

YES

>> Replace VVEL control module. Refer to 

EC-536, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1607

VVEL CONTROL MODULE
(VVEL control module circuit)

• The internal circuit of the VVEL control 

module is malfunctioning.

• VVEL control module

P1608 VVEL SENSOR POWER SUPPLY

EC-453

< DTC/CIRCUIT DIAGNOSIS >

[VK56VD]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

P1608 VVEL SENSOR POWER SUPPLY

DTC Logic

INFOID:0000000006217955

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING 

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 10 V or more at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON and wait at least 1 second.

2.

Check DTC.

Is DTC detected?

YES

>> Go to 

EC-453, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006217956

1.

CHECK VVEL CONTROL SHAFT POSITION SENSOR POWER SUPPLY CIRCUIT-I

1.

Disconnect VVEL control shaft position sensor harness connector.

2.

Turn ignition switch ON.

3.

Check the voltage between VVEL control shaft position sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK VVEL CONTROL SHAFT POSITION SENSOR POWER SUPPLY CIRCUIT-II

1.

Turn ignition switch OFF.

2.

Disconnect VVEL control module harness connector.

3.

Check the continuity between VVEL control shaft position sensor harness connector and VVEL control
module harness connector.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1608

VVEL SENSOR POWER/CIRC
(VVEL sensor power supply circuit)

VVEL control module detects a voltage 
of power source for sensor is excessive-
ly low or high.

• Harness or connectors

(VVEL control shaft position sensor 
power supply circuit is open or shorted.)

• VVEL control shaft position sensor
• VVEL control module

VVEL control shaft position sensor

Ground

Voltage

Bank

Connector

Terminal

1

F72

3

Ground

Approx. 5V

6

2

F70

3

6

 

 

 

 

 

 

 

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