Infiniti FX35, FX50 (S51). Manual - part 1593

 

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Infiniti FX35, FX50 (S51). Manual - part 1593

 

 

SBC-30

< DTC/CIRCUIT DIAGNOSIS >

B2466 DR/AS CONTROL UNIT

B2466 DR/AS CONTROL UNIT

Description

INFOID:0000000005241741

Consists of driver seat side control unit and passenger seat side control unit.

DTC Logic

INFOID:0000000005241742

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

SELF-DIAGNOSIS WITH PRE-CRASH SEAT BELT CONTROL UNIT

1.

Turn ignition switch ON.

2.

Check “Self-diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Refer to 

SBC-30, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005241743

1.

CHECK THE VEHICLE SPECIFICATION

Check the part number.
Does the part application fit to the vehicle specification?

YES

>> GO TO 2.

NO

>> Replace the malfunction parts.

2.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Self-diagnosis item

DTC Detection Condition

Possible causes

B2466

DR/AS CONTROL 

UNIT

Driver seat side control unit or passenger 
seat side control unit is out of the vehicle 
specification

Driver seat side control unit or passenger side 
control unit that is installed is out of the vehi-
cle specification

B2470 SYS HEAT PROTC DR

SBC-31

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SBC

N

O

P

B2470 SYS HEAT PROTC DR

Description

INFOID:0000000005241744

When fastening and unfastening seat belt or opening and closing door is repeated continuously for a short
period of time, the system temporarily deactivates the retracting function of seat belt to prevent excessive
heating. The system recovers automatically.

DTC Logic

INFOID:0000000005241745

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

SELF-DIAGNOSIS WITH PRE-CRASH SEAT BELT CONTROL UNIT

1.

Turn ignition switch ON.

2.

Check “Self-diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Refer to 

SBC-31, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005241746

1.

CHECK THE VEHICLE CONDITION WITH CONSULT-III DATA MONITOR

1.

Check “HEAT PROTC LH” of DATA MONITOR.

2.

Wait until “OFF” appears.

3.

Perform the self-diagnosis, after performing the check.

4.

Touch “ERASE”.

5.

Perform DTC Confirmation Procedure.
See 

SBC-31, "DTC Logic"

.

Is DTC B2470 displayed again?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Self-diagnosis item

DTC Detection Condition

Possible causes

B2470

SYS HEAT PROTC DR

Deactivates to prevent excessive heating

Belt retracting function activates continuously 
in a short period of time.

SBC-32

< DTC/CIRCUIT DIAGNOSIS >

B2471 SYS HEAT PROTC AS

B2471 SYS HEAT PROTC AS

Description

INFOID:0000000005241747

When fastening and unfastening seat belt or opening and closing door is repeated continuously for a short
period of time, the system temporarily deactivates the retracting function of seat belt to prevent excessive
heating. The system recovers automatically.

DTC Logic

INFOID:0000000005241748

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

SELF-DIAGNOSIS WITH PRE-CRASH SEAT BELT CONTROL UNIT

1.

Turn ignition switch ON.

2.

Check “Self-diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Refer to 

SBC-32, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005241749

1.

CHECK THE VEHICLE CONDITION WITH CONSULT-III DATA MONITOR

1.

Check “HEAT PROTC RH” of DATA MONITOR.

2.

Wait until “OFF” appears.

3.

Perform the self-diagnosis, after performing the check.

4.

Touch “ERASE”.

5.

Perform DTC Confirmation Procedure.
See 

SBC-32, "DTC Logic"

.

Is DTC B2471 displayed again?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Self-diagnosis item

DTC Detection Condition

Possible causes

B2471

SYS HEAT PROTC AS

Deactivates to prevent excessive heating

Belt retracting function activates continuously 
in the short period of time

U0126 ST ANG SEN SIG

SBC-33

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SBC

N

O

P

U0126 ST ANG SEN SIG

Description

INFOID:0000000005241750

Inputs the steering angle signal from steering angle sensor via CAN communication.

DTC Logic

INFOID:0000000005241751

DTC DETECTION LOGIC

NOTE:
If DTC U0126 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to 

SBC-

14, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

SELF-DIAGNOSIS WITH PRE-CRASH SEAT BELT CONTROL UNIT

1.

Turn ignition switch ON.

2.

Check “Self-diagnostic result” with CONSULT-III.

Is DTC detected?

YES

>> Refer to 

SBC-33, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005241752

1.

CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”

Check “Self-diagnostic result” for “ABS” with CONSULT-III. Refer to 

BRC-44, "CONSULT-III Function"

.

Is DTC detected?

YES

>> Repair or replace malfunctioning parts.

NO

>> GO TO 2.

2.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

>> INSPECTION END

DTC No.

Self-diagnosis item

DTC Detection Condition

Possible causes

U0126

ST ANG SEN SIG 

 Receipt of a malfunction signal of Steering angle signal

Steering angle sensor 

 

 

 

 

 

 

 

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