Infiniti QX56 (Z62). Manual - part 686

 

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Infiniti QX56 (Z62). Manual - part 686

 

 

EXL-36

< ECU DIAGNOSIS INFORMATION >

[XENON TYPE]

AFS CONTROL UNIT

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

Signal name

Input/

output

1

(GR)

Ground

Ignition power supply

Input

The ignition switch ON

Battery voltage

2

(LG/B)

Ground

Right swivel position sensor 
ground

Input

The ignition switch ON

0 V

3

(GR/

R)

Ground

AFS switch signal

Input

AFS switch

ON

Battery voltage

OFF

0 V

4

(Y/R)

Ground

Right swivel position sensor 
power supply

Output

The ignition switch ON

5 V

5

(L/Y)

Ground

Front height sensor power 
supply

Output

The ignition switch ON

5 V

6

(LG/R)

Ground

Rear height sensor power 
supply

Output

The ignition switch ON

5 V

7

(P)

Ground

CAN-L

Input/

output

8

(B/O)

Ground

Rear height sensor ground

Input

The ignition switch ON

0 V

9

(GR)

Ground

Right swivel position sensor 
signal

Output

Right headlamp 
swivel angle

0

°

1.0 V

15

°

2.8 V

10

(B/W)

Ground

Front height sensor ground

Input

The ignition switch ON

0 V

11

(R)

Ground

Right swivel motor 1-phase (

)

Output

Right headlamp 
swivel

Activation

Reference waveform

8 - 12 V

13

(B)

Ground

Right swivel motor 2-phase (

)

Output

Right headlamp 
swivel

Stopped

9.5 - 11.5 V

15

(W)

Ground

Left swivel motor 1-phase (+)

Output

Left headlamp swivel

Activation

Reference waveform

8 - 12 V

17

(G)

Ground

Left swivel motor 2-phase (+)

Output

Left headlamp swivel

Stopped

9.5 - 11.5 V

19

(SB)

Ground

Right levelizer signal

Output

Right headlamp lev-
eling

Unloaded ve-
hicle condition

7.5 V

Leveling oper-
ation down-
ward edge 

7.3 V

SKIB2408J

SKIB2408J

AFS CONTROL UNIT

EXL-37

< ECU DIAGNOSIS INFORMATION >

[XENON TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

23

(V)

Ground

Front height sensor signal

Output

Vehicle rear height

Unloaded ve-
hicle condition

3.5 V

Low (Leveling 
operation 
downward 
edge) 

1.6 V

24

(L/O)

Ground

Left swivel position sensor 
power supply

Output

The ignition switch ON

5 V

25

(B)

Ground

Ground

The ignition switch ON

0 V

27

(BR/Y)

Ground

Left swivel position sensor 
ground

Input

The ignition switch ON

0 V

28

(R/G)

Ground

Rear height sensor signal

Output

Vehicle rear height

Unloaded ve-
hicle condition

3.2 V

Low (Leveling 
operation 
downward 
edge) 

1.5 V

29

(BR/

W)

Ground

Left swivel position sensor sig-
nal

Output

Left headlamp swivel 
angle

0

°

1.0 V

17

°

3.0 V

30

(L)

Ground

CAN-H

Input/

output

32

(G)

Ground

Right swivel motor 2-phase (+)

Output

Right headlamp 
swivel

Activation

Reference waveform

8 - 12 V

34

(W)

Ground

Right swivel motor 1-phase (+)

Output

Right headlamp 
swivel

Stopped

9.5 - 11.5 V

36

(R)

Ground

Left swivel motor 2-phase (

)

Output

Left headlamp swivel

Activation

Reference waveform

8 - 12 V

38

(B)

Ground

Left swivel motor 1-phase (

)

Output

Left headlamp swivel

Stopped

9.5 - 11.5 V

40

(GR/L)

Ground

Left levelizer signal

Output

Right headlamp lev-
eling

Unloaded ve-
hicle condition

7.5 V

Leveling oper-
ation down-
ward edge 

7.3 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

+

Signal name

Input/

output

SKIB2408J

SKIB2408J

EXL-38

< ECU DIAGNOSIS INFORMATION >

[XENON TYPE]

AFS CONTROL UNIT

Fail-Safe

INFOID:0000000006213918

DTC

Fail-safe

AFS OFF indicator lamp

Cancellation

U1000: CAN COMM CIRCUIT

• Right and left swivel motors 

stop at the position when DTC 
is detected.

• Right and left aiming motors 

stop at the position when DTC 
is detected.

Blinks 1 second each.

Ignition switch OFF

U1010: CONTROL UNIT (CAN)

• Right and left swivel motors 

stop at the position when DTC 
is detected.

• Right and left aiming motors 

stop at the position when DTC 
is detected.

Blinks 1 second each.

Ignition switch OFF

B2503: SWIVEL ACTUATOR [RH]

• Right swivel motors stop at the 

position when DTC is detected.

• The signal, approximately 2 V 

decreased from the levelizer 
signal when DTC detected, is 
output.

Blinks 1 second each.

Ignition switch OFF

B2504: SWIVEL ACTUATOR [LH]

• Left swivel motors stop at the 

position when DTC is detected.

• The signal, approximately 2 V 

decreased from the levelizer 
signal when DTC detected, is 
output.

Blinks 1 second each.

Ignition switch OFF

B2513: HI SEN UNUSUAL [FR]

• Right and left aiming motors 

stop at the position when DTC 
is detected.

Ignition switch OFF

B2514: HI SEN UNUSUAL [RR]

• Right and left aiming motors 

stop at the position when DTC 
is detected.

Ignition switch OFF

C0126: ST ANG SEN SIG

• Right and left swivel motor 

swivel angle returns to 0

°

 and 

fixed.

Blinks 1 second each.

Ignition switch OFF

B2516: SHIFT SIG [P, R]

• Right and left swivel motor 

swivel angle returns to 0

°

 and 

fixed.

Blinks 1 second each.

Ignition switch OFF

B2517: VEHICLE SPEED SIG

• Right and left swivel motor 

swivel angle returns to 0

°

 and 

fixed.

• Right and left aiming motors 

stop at the position when DTC 
is detected.

Blinks 1 second each.

Ignition switch OFF

B2519: LEVELIZER CALIB

• Right and left aiming motors 

stop at the position when DTC 
is detected.

When the levelizer adjustment is 
completed.

C0428: ST ANGLE SEN CALIB

• Right and left swivel motor 

swivel angle returns to 0

°

 and 

fixed.

Blinks 1 second each.

When the steering angle sensor 
neutral position registration is 
competed.

B2521: ECU CIRC

• Right and left swivel motors 

stop at the position when DTC 
is detected.

• Right and left aiming motors 

stop at the position when DTC 
is detected.

Blinks 1 second each.

Ignition switch OFF

AFS CONTROL UNIT

EXL-39

< ECU DIAGNOSIS INFORMATION >

[XENON TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

DTC Inspection Priority Chart

INFOID:0000000006213919

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
• If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000.
• If DTC U1010 is displayed with other DTC, first perform the trouble diagnosis for DTC U1010.

DTC Index

INFOID:0000000006213920

×

: Applicable

Priority

Detected items (DTC)

1

• U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)

2

• B2519: LEVELIZER CALIB
• B2521: ECU CIRC
• C0428: ST ANG SEN CALIB

3

• B2503: SWIVEL ACTUATOR [RH]
• B2504: SWIVEL ACTUATOR [LH]
• B2513: HI SEN UNUSUAL [FR]
• B2514: HI SEN UNUSUAL [RR]
• B2516: SHIFT SIG [P, R]
• B2517: VEHICLE SPEED SIG
• C0126: ST ANG SEN SIG

CONSULT display

Fail-safe

AFS OFF indicator 

lamp

Reference

U1000: CAN COMM CIRCUIT

×

×

EXL-82

U1010: CONTROL UNIT (CAN)

×

×

EXL-83

B2503: SWIVEL ACTUATOR [RH]

×

×

EXL-63

B2504: SWIVEL ACTUATOR [LH]

×

×

EXL-63

B2513: HI SEN UNUSUAL [FR]

×

EXL-68

B2514: HI SEN UNUSUAL [RR]

×

EXL-71

B2516: SHIFT SIG [P, R]

×

×

EXL-74

B2517: VEHICLE SPEED SIG

×

×

EXL-75

B2519: LEVELIZER CALIB

×

EXL-76

B2521: ECU CIRC

×

×

EXL-77

C0126: ST ANG SEN SIG 

×

×

EXL-80

C0428: ST ANGLE SEN CALIB

×

×

EXL-81

 

 

 

 

 

 

 

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