Infiniti QX56 (Z62). Manual - part 417

DLK-134

< DTC/CIRCUIT DIAGNOSIS >

REMOTE KEYLESS ENTRY RECEIVER

REMOTE KEYLESS ENTRY RECEIVER

Component Function Check

INFOID:0000000006225947

1.

CHECK FUNCTION

1.

Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.

2.

Select “RKE OPE COUN1” in “DATA MONITOR” mode.

3.

Check that the function operates normally according to the following conditions.

Is the inspection result normal?

YES

>> Remote keyless entry receiver is OK.

NO

>> Refer to 

DLK-134, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006225948

1.

CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Check signal between remote keyless entry receiver harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 1

1.

Disconnect BCM and remote keyless entry receiver connector

2.

Check continuity between BCM harness connector and remote keyless entry receiver harness connector.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace harness.

Monitor item

Condition

RKE OPE COUN1

Checks whether value changes when operating Intelligent Key

(+)

(–)

Condition

Signal

(Reference value)

Remote keyless entry receiver

Connector

Terminal

B21

2

Ground

Waiting

Signal receiving

JMKIA3838GB

JMKIA3841GB

BCM

Remote keyless entry receiver

Continuity 

Connector

Terminal

Connector

Terminal

M68

20

B21

2

Existed

REMOTE KEYLESS ENTRY RECEIVER

DLK-135

< DTC/CIRCUIT DIAGNOSIS >

C

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F

G

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DLK

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3.

CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 2

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY 

1.

Disconnect remote keyless entry receiver.

2.

Check signal between remote keyless entry receiver harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 3

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and remote keyless entry receiver harness connector.

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

NO

>> Repair or replace harness.

6.

CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT 1

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and remote keyless entry receiver harness connector.

BCM

Ground

Continuity 

Connector

Terminal

M68

20

Not existed

(+)

(–)

Signal

(Reference value)

Remote keyless entry receiver

Connector

Terminal

B21

4

Ground

JMKIA3838GB

BCM

Remote keyless entry receiver

Continuity 

Connector

Terminal

Connector

Terminal

M68

19

B21

4

Existed

BCM

Ground

Continuity 

Connector

Terminal

M68

19

Not existed

BCM

Remote keyless entry receiver

Continuity 

Connector

Terminal

Connector

Terminal

M68

18

B21

1

Existed

DLK-136

< DTC/CIRCUIT DIAGNOSIS >

REMOTE KEYLESS ENTRY RECEIVER

3.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace harness.

7.

CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT 2

1.

Connect BCM connector.

2.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace remote keyless entry receiver.

NO

>> Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

8.

CHECK REMOTE KEYLESS ENTRY RECEIVER RSSI OUTPUT SIGNAL

1.

Connect BCM and remote keyless entry receiver connector.

2.

Check signal between remote keyless entry receiver harness connector and ground using oscilloscope.

Is the inspection result normal?

YES

>> GO TO 9.

NO

>> Replace remote keyless entry receiver.

9.

CHECK REMOTE KEYLESS ENTRY RECEIVER RSSI CIRCUIT

1.

Disconnect BCM and remote keyless entry receiver connector.

2.

Check continuity between BCM harness connector and remote keyless entry receiver harness connector.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

NO

>> Repair or replace harness.

BCM

Ground

Continuity

Connector

Terminal

M68

18

Not existed

BCM

Ground

Continuity

Connector

Terminal

M68

18

Existed

(+)

(–)

Condition

Signal

(Reference value)

Remote keyless entry receiver

Connector

Terminal

B21

3

Ground

Waiting

0 V

Signal receiving

JMKIA3838GB

BCM

Remote keyless entry receiver

Continuity

Connector

Terminal

Connector

Terminal

M68

22

B21

3

Existed

DOOR REQUEST SWITCH

DLK-137

< DTC/CIRCUIT DIAGNOSIS >

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DOOR REQUEST SWITCH

Component Function Check

INFOID:0000000006225949

1.

CHECK FUNCTION

1.

Select “INTELLIGENT KEY” of “BCM” using CONSULT-III.

2.

Select “REQ SW-DR”, “REQ SW-AS” in “DATA MONITOR” mode.

3.

Check that the function operates normally according to the following conditions.

Is the inspection result normal?

YES

>> Front door request switch is OK.

NO

>> Refer to 

DLK-137, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006225950

1.

CHECK DOOR REQUEST SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect malfunctioning front door request switch connector.

3.

Check voltage between malfunctioning front door request switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK DOOR REQUEST SWITCH CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between malfunctioning front door request switch harness connector and BCM harness
connector.

3.

Check continuity between malfunctioning front door request switch harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-81, "Removal and Installation"

.

NO

>> Repair or replace harness.

Monitor item

Condition

Status

REQ SW -DR

Driver side door request switch

Pressed

ON

Released

OFF

REQ SW -AS

Passenger side door request switch

Pressed

ON

Released

OFF

(+)

(–)

Voltage

(Approx.)

Front door request switch

Connector

Terminal

Driver side

D11

1

Ground

12 V

Passenger side

D31

Front door request switch

BCM

Continuity 

Connector

Terminal

Connector

Terminal

Driver side

D11

1

M71

75

Existed

Passenger side

D31

76

Front door request switch

Ground

Continuity 

Connector

Terminal

Driver side

D11

1

Not existed

Passenger side

D31