Infiniti FX35, FX50 (S51). Manual - part 1598

 

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Infiniti FX35, FX50 (S51). Manual - part 1598

 

 

SBC-50

< DTC/CIRCUIT DIAGNOSIS >

SEAT BELT WARNING SYSTEM

JCHWA0400GB

PRE-CRASH SEAT BELT CONTROL UNIT

SBC-51

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

I

J

K

L

M

A

B

SBC

N

O

P

ECU DIAGNOSIS INFORMATION

PRE-CRASH SEAT BELT CONTROL UNIT

Reference Value

INFOID:0000000005241775

VALUES ON THE DIAGNOSIS TOOL

CONSULT-III MONITOR ITEM

TERMINAL LAYOUT

PHYSICAL VALUES (DRIVER SIDE)

Monitor item

Condition

Value/Status

(Approx.)

BUCKLE SW RH

RH seat belt is not fastened

OFF

RH seat belt is fastened

ON

BUCKLE SW LH

RH seat belt is not fastened

OFF

RH seat belt is fastened

ON

VEHICLE DISTANCE

Not activated

OFF

Activated

ON

IGN SW

Ignition switch OFF

OFF

Ignition switch ON

ON

FR DOOR SW RH

LH door close

CLOSE

LH door open

OPEN

FR DOOR SW LH

RH door close

CLOSE

RH door open

OPEN

VHCL SPEED

While driving

Equivalent speedometer reading (km/h)

BRK PEDAL SNSR1

Brake released 

 depressed

(1 V 

 4 V)

BRK PEDAL SNSR2

Brake released 

 depressed

(4 V 

 1V)

STRG ANGLE

Ignition switch ON

Depending on steering angle (deg)

STRG ACCL SPEED 

Ignition switch ON

Depending on steering acceleration speed 

(deg/s)

HEAT PROTC RH

RH heat protection is not activated

OFF

RH heat protection is activated

ON

HEAT PROTC LH

LH heat protection is not activated

OFF

LH heat protection is activated

ON

JMHIA0711ZZ

SBC-52

< ECU DIAGNOSIS INFORMATION >

PRE-CRASH SEAT BELT CONTROL UNIT

*

1

: Perform the measurement while connecting the control unit and the harness.

PHYSICAL VALUES (PASSENGER SIDE)

Terminal No.

(Wire color)

Description

Condition

Value*

1

(Approx.)

+

Signal name

Input/

Output

1

(SB)

GND

Power supply

Input

Battery voltage

2

(G)

GND

Brake pedal stroke sensor signal 1

Input

Brake released 

 de-

pressed

1V - 4V

4

(P)

GND

CAN-L

Input/

Output

6

(LG)

GND

Seat belt buckle switch signal

Input

Seat belt is fastened

0 V

Seat belt is unfastened

5 V

8

(G)

GND

Local Communication Line 2

Input/

Output

IGN ON

5 V

9

(BR)

GND

Shield

10

(B)

GND

Brake pedal stroke sensor power circuit

Output

IGN ON

5 V

12

(R)

GND

Brake pedal stroke sensor signal 2

Input

Brake released 

 de-

pressed

4V - 1V

14

(L)

GND

CAN-H

Input/

Output

16

(W)

GND

Local Communication Line 1

Input/

Output

17

(W)

GND

Brake pedal stroke sensor ground circuit

Input

0 V

18

(B)

GND

GND

Output

0 V

19

(W)

GND

Motor drive circuit power supply

Input

Battery voltage

20

(B)

GND

Motor drive circuit ground

Output

0 V

Terminal No.

(Wire color)

Description

Condition

Value*

1

(Approx.)

+

Signal name

Input/

Output

1

(Y)

GND

Power supply 

Input

Battery voltage

6

(V)

GND

Seat belt buckle switch signal

Input

Seat belt is fastened

0 V

Seat belt is unfastened

5 V

8

(G)

GND

Local Communication Line 2

Input/

Output

IGN ON

5 V

9

(B)

GND

Shield

16

(W)

GND

Local Communication Line 1

Input/

Output

18

(B)

GND

GND

Output

0 V

PRE-CRASH SEAT BELT CONTROL UNIT

SBC-53

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

I

J

K

L

M

A

B

SBC

N

O

P

*

1

: Perform the measurement while connecting the control unit and the harness.

Fail Safe

INFOID:0000000005241776

When a system malfunction is detected, deactivates a part of the system or all functions depending on the
malfunctioning part.
When the malfunction condition recovers to the normal condition, the system returns to the normal operation. 

DRIVER SIDE

*

1

: The deactivation mode differs depending on the internal malfunctioning condition of control unit

19

(W)

GND

Motor passenger circuit power supply

Input

Battery voltage

20

(B)

GND

Motor passenger circuit ground

Output

0 V

Terminal No.

(Wire color)

Description

Condition

Value*

1

(Approx.)

+

Signal name

Input/

Output

Display contents of CONSULT-III

Fail-safe

B2451:SEAT BLT MTR DR CIRC

Fully deactivates the whole operation.

B2452:SEAT BLT MTR AS CIRC

Deactivates a part of comfort function.

B2453:BR_STROKE_SEN_CIRC

Stops the operation in the conditions as per the following.
• During emergency brake operation
• When ABS continuously operates
• A part of comfort function

B2454:SEAT BLT PWR DR CIRC

Fully deactivates the whole operation.

B2455:CONTROL UNIT DR

Stops the operation in the conditions as per the following. *

1

• During emergency brake operation
• When ABS continuously operates
• When lateral slippage during cornering occurs
• When Intelligent brake assistance operates
• When steering wheel is rotated for emergency
• A part or the whole comfort function

B2456:SEAT BLT PWR AS

Deactivates a part of comfort function.

B2457:CONTROL UNIT AS

Deactivates a part of comfort function.

B2458:LOCAL COMM

Deactivates a part of comfort function.

B2461:VHCL SPEED SIGNAL

Stops the operation in the conditions as per the following.
• During emergency brake operation
• When ABS continuously operates
• When lateral slippage during cornering occurs
• When steering wheel is rotated for emergency
• When comfort function operates

B2462:B2462:VHCL DISTANCE SIGNAL

Deactivates a part of comfort function.

B2466:DR/AS CONTROL UNIT

Deactivates a part of comfort function.

B2470:SYS HEAT PROTC DR

• Fully deactivates the whole operation.
• Operation return
- 1 time operation becomes possible after approximately 30 seconds
- Returns to the initial condition after approximately 8 minutes

U0126:STRG ANG SEN SIG

Stops the operation in the conditions as per the following.
• When lateral slippage during cornering occurs
• When steering wheel is rotated for emergency
• A part of comfort function

U0428:STRG ANGL CAL

Stops the operation in the conditions as per the following.
• When lateral slippage during cornering occurs
• When steering wheel is rotated for emergency
• A part of comfort function

 

 

 

 

 

 

 

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