Infiniti QX56 (JA60). Manual - part 222

 

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Infiniti QX56 (JA60). Manual - part 222

 

 

U1010 CONTROL UNIT (CAN)

DLK-59

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000005146908

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000005146909

1.

REPLACE BCM

When DTC [U1010] is detected, replace BCM.

>> Replace BCM. Refer to 

BCS-59, "Removal and Installation"

.

Special Repair Requirement

INFOID:0000000005146910

1.

REQUIRED WORK WHEN REPLACING BCM

The BCM must be initialized when replaced. Refer to 

BCS-3, "CONFIGURATION : Description"

 for BCM con-

figuration.

Initialize NVIS by CONSULT-III. For the details of initialization refer to CONSULT-III operation manual.

>> Work end.

DTC

CONSULT-III display de-

scription

DTC Detection Condition

Possible cause

U1010

CONTROL UNIT (CAN)

BCM detected internal CAN communication circuit malfunction.

BCM

DLK-60

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

CENTER CONSOLE AREA ANTENNA (REAR)

CENTER CONSOLE AREA ANTENNA (REAR)

Description

INFOID:0000000005146911

Detects whether Intelligent Key is inside the vehicle.

Component Function Check

INFOID:0000000005146912

1.

CHECK INSIDE KEY ANTENNA INPUT SIGNAL

With CONSULT-III

1. Check “ANTENNA” in “Active Test” mode with CONSULT-III.

2. Touch “ROOM ANT1”.

3. When Intelligent Key is in center console area antenna (rear) detection area, hazard lamps flash.

Is the inspection result normal?

YES

>> Center console area antenna (rear) is OK.

NO

>> Refer to 

DLK-60, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005146913

Regarding Wiring Diagram information, refer to 

DLK-178, "Wiring Diagram — INTELLIGENT KEY SYSTEM —

"

.

1.

CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL

1. Turn ignition switch OFF.

2. Check signal between Intelligent Key unit connector and ground with an oscilloscope.

Is the inspection result normal?

YES

>> Center console area antenna (rear) is OK.

NO

>> GO TO 2

2.

CHECK INSIDE KEY ANTENNA

1. Disconnect Intelligent Key unit connector and center console area antenna (rear) connectors.

2. Check continuity between Intelligent Key unit harness connector (A) M70 terminals 15, 16 and center con-

sole area antenna (rear) harness connector (B) M209 terminals 1, 2.

Test Item

Condition

Possible cause

ROOM ANT1

An excessive high or low voltage from inside 

antenna is sent to the Intelligent Key Unit

• Center console area antenna (rear)
•  Between Intelligent Key unit and center console area an-

tenna (rear)

Connector

Item

Terminals

Condition

Signal (V)

(Reference value)

(+)

(–)

M70

Intelligent 

Key unit

15

Ground

Ignition 
switch is 
pushed.

ALKIA0585ZZ

PIIB7441E

CENTER CONSOLE AREA ANTENNA (REAR)

DLK-61

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

3. Check continuity between Intelligent Key unit harness connector

(A) M70 terminals 15, 16 and ground.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace harness between Intelligent Key unit and center console area antenna (rear).

3.

CHECK INSIDE KEY ANTENNA POWER SUPPLY SINGAL

1. Replace center console area antenna (rear). (New antenna or other antenna)

2. Connect Intelligent Key unit connector.

3. Check signal between Intelligent Key unit connector and ground

with oscilloscope.

Is the inspection result normal?

YES

>> Replace center console area antenna (rear).

NO

>> Replace Intelligent Key unit. Refer to 

SEC-120, "Removal and Installation"

.

Intelligent Key 
unit connector

Terminals

Center console area 

antenna (rear) con-

nector

Terminals

Continuity

A: M70

15

B: M209

1

Yes

16

2

Item

Connector

Terminals

Continuity

Intelligent Key 

unit

A: M70

15

Ground

No

16

ALKIA0586ZZ

Connector

Item

Terminals

Condition

Signal (V)

(Reference value)

(+)

(–)

M70

Intelligent 

Key unit

15

Ground

Ignition 
switch is 
pushed.

ALKIA0585ZZ

PIIB7441E

DLK-62

< COMPONENT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

LUGGAGE AREA ANTENNA

LUGGAGE AREA ANTENNA

Description

INFOID:0000000005146914

Detects whether Intelligent Key is inside the vehicle.

Component Function Check

INFOID:0000000005146915

1.

CHECK INSIDE KEY ANTENNA INPUT SIGNAL

With CONSULT-III

1. Check “ANTENNA” in “Active Test” mode with CONSULT-III.

2. Touch “ROOM ANT1”.

3. When Intelligent Key is in luggage area antenna detection area, hazard lamps flash.

Is the inspection result normal?

YES

>> Luggage area antenna is OK.

NO

>> Refer to 

DLK-62, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005146916

Regarding Wiring Diagram information, refer to 

DLK-178, "Wiring Diagram — INTELLIGENT KEY SYSTEM —

"

.

1.

CHECK INSIDE KEY ANTENNA POWER SUPPLY SIGNAL

1. Turn ignition switch OFF.

2. Check signal between Intelligent Key unit connector and ground with an oscilloscope.

Is the inspection result normal?

YES

>> Luggage area antenna is OK.

NO

>> GO TO 2

2.

CHECK INSIDE KEY ANTENNA

1. Disconnect Intelligent Key unit connector and luggage area antenna connectors.

2. Check continuity between Intelligent Key unit harness connector (A) M70 terminals 35, 36 and luggage

area antenna harness connector (B) B76 terminals 1, 2.

Test Item

Condition

Possible cause

ROOM ANT1

An excessive high or low voltage from inside 

antenna is sent to the Intelligent Key Unit

•  Luggage area antenna
•  Between Intelligent Key unit and luggage area antenna

Connector

Item

Terminals

Condition

Signal (V)

(Reference value)

(+)

(–)

M70

Intelligent 

Key unit

35

Ground

Ignition 
switch is 
pushed.

ALKIA0587ZZ

PIIB7441E

 

 

 

 

 

 

 

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