Infiniti QX56 (Z62). Manual - part 395

DLK-46

< ECU DIAGNOSIS INFORMATION >

BCM

ECU DIAGNOSIS INFORMATION

BCM

List of ECU Reference

INFOID:0000000006225859

ECU

Reference

BCM

BCS-33, "Reference Value"

BCS-54, "Fail-safe"

BCS-56, "DTC Inspection Priority Chart"

BCS-57, "DTC Index"

AUTOMATIC BACK DOOR CONTROL MODULE

DLK-47

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

AUTOMATIC BACK DOOR CONTROL MODULE

Reference Value

INFOID:0000000006225860

VALUES ON THE DIAGNOSIS TOOL

CONSULT-III MONITOR ITEM

Monitor Item

Condition

Value/Status

VHCL SPEED MTR

While driving

Equivalent to speedometer 

reading

VHCL SPEED ABS

While driving

Equivalent to speedometer 

reading

VHCL SPEED SIG

Vehicle speed from automatic back 
door control unit

Normal

NORMAL

Error

ERROR

MAIN SW

Automatic back door main switch

OFF

OFF

ON

ON

AUTO BD SW

Automatic back door switch 

Release

OFF

Press

ON

BK DOOR CL SW

Automatic back door close switch 

Release

OFF

Press

ON

UNLOCK SEN DR

Door lock (driver)

Unlock

OFF

Lock

ON

OPEN SW

Back door

Half latch/fully closed

OFF

Open

ON

CLOSE SW

Back door

Open/half latch

OFF

Fully closed

ON

HALF LATCH SW

Back door

Half latch/fully closed

OFF

Open

ON

TOUCH SEN RH

Touch sensor RH

Other than bellow

OFF

Detect obstruction

ON

TOUCH SEN LH

Touch sensor LH

Other than bellow

OFF

Detect obstruction

ON

P RANGE IND

Selector lever

Other than P position

OFF

P position

ON

RKE REQ

Intelligent Key button (back door) 

Release

OFF

Press (more than 0.5 sec-
ond)

MOVE

Press (just after)

REV

IGN SW

Ignition switch

Other than ON position

OFF

ON position

ON

ENCODER A

Automatic back door

Not operate

No change HI or LO

Operate

Change HI or LO

ENCODER B

Automatic back door

Not operate

No change HI or LO

Operate

Change HI or LO

BD OPENER SW

Back door opener switch

Release

OFF

Press

ON

UNLOCK SEN BD

Door lock (back door)

Unlock

OFF

Lock

ON

DLK-48

< ECU DIAGNOSIS INFORMATION >

AUTOMATIC BACK DOOR CONTROL MODULE

TERMINAL LAYOUT

PHYSICAL VALUES

DESTINATION

Circuit between automatic back 

door control module terminal 22 

and ground

Normal

NAM

Open or short

JPN

HAZARD

Circuit between automatic back 

door control module terminal 23 

and ground

Normal

ON

Open or short

OFF

Monitor Item

Condition

Value/Status

JMKIA5246ZZ

Terminal No.

(Wire color)

Description

Condition

Voltage

(Approx.)

(+)

(–)

Signal name

Input/

Output

1

(L)

Ground

Automatic back door 
warning buzzer

Output

Automatic back 
door warning 
buzzer

Sounding

0 V

Not sounding

Battery voltage

2

(Y/B)

Ground

Automatic back door 
switch

Input

Automatic back 
door switch

Pressed

0 V

Released

Battery voltage

4

(GR)

Ground

Automatic back door 
close switch

Input

Automatic back 
door close switch

Pressed

0 V

Released

Battery voltage

6

(P)

Ground

CAN - L

Input/

Output

—

—

7

(L)

Ground

CAN - H

Input/

Output

—

—

8

(L/W)

Ground

Half latch switch signal

Input

Back door

Open

0 V

Fully closed/half 
latch

Battery voltage

9

(GR/

L)

Ground

Power supply (IGN)

Input

Ignition switch ON

Battery voltage

10

(Y)

Ground

Power supply (BAT)

Input

—

Battery voltage

11

(R)

Ground

Back door closure mo-
tor (open)

Output

Back door

Open operation

Battery voltage

Other than above

0 V

12

(V)

Ground

Back door closure mo-
tor (close)

Output

Back door

Close operation

Battery voltage

Other than above

0 V

14

(GW)

Ground

Touch sensor LH sig-
nal

Input

Touch sensor LH

Detect obstruc-
tion

0 V

Other than above

6 V

15

(L/R)

Ground

Touch sensor ground

Input

—

0 V

AUTOMATIC BACK DOOR CONTROL MODULE

DLK-49

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

Fail Safe

INFOID:0000000006225861

DTC Inspection Priority Chart

INFOID:0000000006225862

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.

16

(LG)

Ground

Touch sensor RH sig-
nal

Input

Touch sensor RH

Detect obstruc-
tion

0 V

Other than above

6 V

17

(O)

Ground

Automatic back door 
main switch

Input

Automatic back 
door main switch

ON

Battery voltage

OFF

0 V

19

(L/Y)

Ground

Close switch signal

Input

Back door

Fully closed

0 V

Open/half latch

Battery voltage

20

(G/Y)

Ground

Open switch signal

Input

Back door

Open

0 V

Half latch/fully 
closed

Battery voltage

22

(B)

Ground

Ground (destination)

—

—

0 V

23

(B)

Ground

Ground (Hazard re-
minder) 

—

—

0  V

28

(R/W)

Ground

Power supply (BAT)

Input

—

Battery voltage

34

(B)

Ground

Ground

—

—

0 V

Terminal No.

(Wire color)

Description

Condition

Voltage

(Approx.)

(+)

(–)

Signal name

Input/

Output

Display contents of CONSULT-III

Fail-safe

Cancellation

B2401 IGN OPEN

Intermittent clutch function

All following condition are satisfied
• Power supply condition of auto-

matic back door control unit: OFF

• BCM receive ignition position sig-

nal (OFF) via CAN

B2403 PULSE ENCODER

Inhibit automatic back door operation

When receiving the pulse from en-
coders A and B normally (5 pulses)

B2409 HALF LATCH SW

Intermittent clutch function

Half latch switch is ON from OFF

B2416 TOUCH SEN R OPEN

During close operation: Intermittent clutch 
function

Normal return

B2417 TOUCH SEN L OPEN

During close operation: Intermittent clutch 
function

Normal return

B2419 OPEN SW

Inhibit automatic back door operation

Erase DTC, reconnect battery

B2420 CLOSE SW

Inhibit automatic back door operation

Erase DTC, reconnect battery

B2421 CLUTCH TIME OUT

Intermittent clutch function

Reception of next operation request

B2422 BACK DOOR STATE

Intermittent clutch function

Detect back door fully closed posi-
tion

B2423 ABD MTR TIME OUT

Intermittent clutch function

Reception of next operation request

B2424 CLSR CONDITION

Inhibit automatic back door operation

Normal return or reconnect battery