Infiniti EX35. Manual - part 1375

SRC-126

< COMPONENT DIAGNOSIS >

B1210 SIDE COLLISION DETECTION

B1210 SIDE COLLISION DETECTION

Description

INFOID:0000000003591922

DTC B1210 SIDE COLLISION DETECTION

When detect a component damage resulting from a side collision, brinks or illuminates the air bag warning
lamp to inform the driver. Malfunctioning can be detected by the CONSULT-III.

OPERATION

The front side air bag and side curtain air bag are operated by the decision of the air bag diagnosis sensor unit
signal of the side collision.

STRUCTURE

It consists of satellite sensor, air bag diagnosis sensor unit, front side air bag and side curtain air bag. 

INSTALLATION

Refer to 

SR-14, "Removal and Installation"

, 

SR-16, "Removal and Installation"

, 

SR-10, "Removal and Installa-

tion"

.

DTC Logic

INFOID:0000000003591923

DTC DETECTION LOGIC

With CONSULT-III

DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)

DTC CONFIRMATION PROCEDURE (WITH CONSULT-III)

1.

CHECK SELF-DIAG RESULT

1.

Turn ignition switch ON.

2.

Check the screen of CONSULT-III.

Is malfunctioning part detected?

YES

>> Refer to 

SRC-126, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000003591924

WITH CONSULT-III

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3

minutes. (To discharge backup capacitor)

• Do not use unspecified tester or other measuring device. 

DIAGNOSTIC PROCEDURE

1.

CHECK FRONT SIDE AIR BAG MODULE

Check front side air bag module.

Is the front side air bag module deployed?

YES

>> Replace front side air bag module. Refer to 

SE-87, "Exploded View"

.

NO

>> GO TO 2.

2.

CHECK SIDE CURTAIN AIR BAG MODULE

Check side curtain air bag module.

Is the side curtain air bag module deployed?

YES

>> Replace side curtain air bag module. Refer to 

SR-10, "Removal and Installation"

.

NO

>> GO TO 3.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1210

SIDE COLLISION DE-
TECTION

Front side air bag, side curtain air bag is 
deployed

—

B1210 SIDE COLLISION DETECTION

SRC-127

< COMPONENT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

3.

CHECK SATELLITE SENSOR

Check satellite sensor.
Is the front side air bag module and/or side curtain air bag module deployed?

YES

>> Replace satellite sensor. Refer to 

SR-14, "Removal and Installation"

.

NO

>> GO TO 4.

4.

CHECK AIR BAG DIAGNOSIS SENSOR UNIT

Check air bag diagnosis sensor unit.

Is the front side air bag module and/or side curtain air bag module deployed?

YES

>> Replace air bag diagnosis sensor unit. Refer to 

SR-16, "Removal and Installation"

.

NO

>> GO TO 5.

5.

CHECK WIRING HARNESS/HARNESS CONNECTOR

Check wiring harness/harness connector.

Is the wiring harness/harness connector normal?

YES

>> GO TO 6.

NO

>> Replace wiring harness/harness connector.

6.

FINAL CHECK

Check the screen of CONSULT-III and/or Air bag warning lamp status.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Check the intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

SRC-128

< ECU DIAGNOSIS >

DIAGNOSIS SENSOR UNIT

ECU DIAGNOSIS

DIAGNOSIS SENSOR UNIT

DTC Index

INFOID:0000000003136319

DTC No. Index (With CONSULT-III)

(“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)
NOTE:
Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is
eliminated using air bag warning lamp or CONSULT-III each time repair is completed. If malfunction is still
observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.    

Diagnostic item

Explanation

Repair order

“Recheck SRS at each replacement”

NO DTC IS DETECT-
ED.

When malfunction is in-
dicated by the “AIR 
BAG” warning lamp in 
User mode

• Low battery voltage (Less than 9 V)

• Self-diagnosis result “SELF-DIAG 

[PAST]” (previously stored in the 
memory) might not be erased after re-
pair

• Intermittent malfunction has been de-

tected in the past

Go to 

SRC-14, "Diagnosis Description"

• No malfunction is detected

—

CONTROL UNIT
[B1001-B1015]

• Air bag diagnosis sensor unit is out of order or mis-match

Replace air bag diagnosis sensor unit

OCCUPANT SENS C/U
[UNIT FAIL]
[B1017]
[B1020]
[B1021]

• Trouble occurs in OCS-control unit

1.

Replace wiring harness/harness 
connector

2.

Replace front passenger seat 
cushion and occupant classifica-
tion system (control unit) as an 
assembly

OCCUPANT SENS 
[UNIT FAIL]
[B1018]

• Trouble occurs in OCS-SENSOR

1.

Replace wiring harness/harness 
connector

2.

Replace front passenger seat 
cushion and occupant classifica-
tion system (control unit) as an 
assembly

OCCUPANT SENS C/U
[COMM FAIL]
[B1022]

• Trouble occurs in OCS-control unit, circuit of OCS-CU~Air bag 

diagnosis sensor unit, or Air bag diagnosis sensor unit

1.

Replace wiring harness/harness 
connector

2.

Replace front passenger seat 
cushion and occupant classifica-
tion system (control unit) as an 
assembly

3.

Replace air bag diagnosis sensor 
unit

PASS A/B INDCTR CKT
[B1023]

• Cut-off telltale circuit is open or shorted to ground or the circuits 

are shorted each other

1.

Replace wiring harness/harness 
connector

2.

Replace passenger air bag OFF 
indicator (Cut-off telltale)

3.

Replace air bag diagnosis sensor 
unit

CONTROL UNIT
[B1026-B1031]

• Air bag diagnosis sensor unit is out of order or mis-match

Replace air bag diagnosis sensor unit

DIAGNOSIS SENSOR UNIT

SRC-129

< ECU DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

CRASH ZONE SEN
[UNIT FAIL]
[B1033]
[B1034]
CRASH ZONE SEN
[COMM FAIL]
[B1035]
[UNMATCH]
[B1036]

[OPEN/UPR-VB-
SHORT]
[B1038]

[SHORT/UPR-GND-
SHORT]
[B1040]

• Crash zone sensor is out of order

1.

Replace wiring harness/harness 
connector

2.

Replace crash zone sensor

3.

Replace air bag diagnosis sensor 
unit

CONTROL UNIT
[B1042-B1047]

• Air bag diagnosis sensor unit is out of order or mis-match

Replace air bag diagnosis sensor unit

DRIVER AIRBAG MOD-
ULE
[OPEN]
[B1049] [B1054]

• Driver air bag module circuit is open (including the spiral cable)

1.

Replace wiring harness/harness 
connector

2.

Replace driver air bag module

3.

Replace spiral cable. Refer to 

SRC-40, "Diagnosis Procedure"

4.

Replace air bag diagnosis sensor 
unit

DRIVER AIRBAG MOD-
ULE
[VB-SHORT]
[B1050] [B1055]

• Driver air bag module circuit is shorted to some power supply cir-

cuit (including the spiral cable)

DRIVER AIRBAG MOD-
ULE
[GND-SHORT]
[B1051] [B1056]

• Driver air bag module circuit is shorted to ground (including the 

spiral cable)

DRIVER AIRBAG MOD-
ULE
[SHORT]
[B1052] [B1057]

• Driver air bag module circuits are shorted to each other (includ-

ing spiral cable)

CONTROL UNIT
[B1058-B1063]

• Air bag diagnosis sensor unit is out of order or mis-match

Replace air bag diagnosis sensor unit

ASSIST A/B MODULE
[OPEN]
[B1065] [B1070]

• Front passenger air bag module circuit is open

1.

Replace wiring harness/harness 
connector

2.

Replace front passenger air bag 
module

3.

Replace air bag diagnosis sensor 
unit

ASSIST A/B MODULE
[VB-SHORT]
[B1066] [B1071]

• Front passenger air bag module circuit is shorted to some power 

supply circuit

ASSIST A/B MODULE
[GND-SHORT]
[B1067] [B1072]

• Front passenger air bag module circuit is shorted to ground

ASSIST A/B MODULE
[SHORT]
[B1068] [B1073]

• Front passenger air bag module circuits are shorted to each oth-

er

CONTROL UNIT
[B1074-B1079]

• Air bag diagnosis sensor unit is out of order or mis-match

Replace air bag diagnosis sensor unit

Diagnostic item

Explanation

Repair order

“Recheck SRS at each replacement”