Infiniti G35 (V35) Sedan. Manual - part 1223

 

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Infiniti G35 (V35) Sedan. Manual - part 1223

 

 

SRC-40

< COMPONENT DIAGNOSIS >

B1026, B1027, B1028, B1029, B1030, B1031 DIAGNOSIS SENSOR UNIT

B1026, B1027, B1028, B1029, B1030, B1031 DIAGNOSIS SENSOR UNIT

Description

INFOID:0000000000959618

DTC B1026, B1027, B1028, B1029, B1030, B1031 DIAGNOSIS SENSOR UNIT

Detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air
bag warning lamp in the combination meter Malfunctioning part can be detected by on board self-diagnosis
system and electro-diagnosis tester “CONSULT-lll”.

OPERATION

It detects a shock that exceeds specified level and watches such systems as the driver and passenger air bag,
side air bag, curtain air bag, pre-tensioner seat belts and Occupant Classification System (OCS) operate prop-
erly. 

STRUCTURE

It contains the “G” sensors of both for frontal collision and for side collision and spare battery function in case
of main battery damage in collision.

INSTALLATION

SRS diagnosis sensor unit is installed under the center console with fixed bolts.

DTC Logic

INFOID:0000000000959619

DTC DETECTION LOGIC

With CONSULT-lll

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

Without CONSULT-lll

Warning Lamp Flash Code Chart

DTC CONFIRMATION PROCEDURE (With CONSULT-lll)

1.

IGNITION SWITCH

Turn ignition switch ON.

>> GO TO 2.

2.

CONSULT-LLL

Select “DIAG MODE” with CONSULT-lll.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1026
B1027
B1028
B1029
B1030
B1031

CONTROL UNIT 

Diagnosis sensor unit is out of order.

1.

Replace diagnosis sensor unit 
(ACU).

JMHIA0034GB

B1026, B1027, B1028, B1029, B1030, B1031 DIAGNOSIS SENSOR UNIT

SRC-41

< COMPONENT DIAGNOSIS >

C

D

E

F

G

I

J

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L

M

A

B

SRC

N

O

P

>> GO TO 3.

3.

DTC CODE

If DTC is detected. Refer to 

SRC-41

>> END

DTC CONFIRMATION PROCEDURE (Without CONSULT-lll)

NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.

1.

IGNITION SWITCH

Turn ignition switch ON.

>> GO TO 2.

2.

USER MODE-DIAG MODE

After air bag warning lamp illuminates for 7 seconds, turn ignition switch OFF within 1 second.

>> GO TO 3.

3.

USER MODE-DIAG MODE

Wait more than 3 seconds.

>> GO TO 4.

4.

USER MODE-DIAG MODE

Repeat step 1 to 3 twice. (Perform three times in all.)

>> GO TO 5.

5.

DIAG MODE

Turn ignition switch ON. (SRS is now in diagnosis mode.)

>> GO TO 6.

6.

DIAG MODE (AIR BAG WARNING LAMP)

Malfunctioning portion is indicated according to blinking times of air bag warning lamp. Refer to 

SRC-41

>> END

Diagnosis Procedure (Component diagnosis)

INFOID:0000000000959620

SRC-42

< COMPONENT DIAGNOSIS >

B1026, B1027, B1028, B1029, B1030, B1031 DIAGNOSIS SENSOR UNIT

With CONSULT-lll

CAUTION:

• Before servicing, turn ignition switch OFF, disconnect both battery terminals and wait at least 3 min-

utes. (To discharge backup capacitor.)

• Do not use unspecified tester or other measuring device. 

DIAGNOSTIC PROCEDURE

1.

CHECK HARNESS CONNECTOR

Check the harness connector.
Are connections of harness connectors and terminals correct?

YES

>> GO TO 2.

NO

>> Repair or replace harness connectors.

2.

CHECK WIRING HARNESS

Check the wiring harness.

Is the outside of wiring harness normal, without any damage?

YES

>> GO TO 3.

NO

>> Replace wiring harness.

3.

CHECK DIAGNOSIS SENSOR UNIT

Check the displayed on CONSULT-lll?

Is “DIAGNOSIS SENSOR UNIT” displayed on CONSULT-lll?

YES

>> Replace diagnosis sensor unit (ACU).
>> INSPECTION END.

B1033, B1034 CRASH ZONE SEN

SRC-43

< COMPONENT DIAGNOSIS >

C

D

E

F

G

I

J

K

L

M

A

B

SRC

N

O

P

B1033, B1034 CRASH ZONE SEN

Description

INFOID:0000000000959621

DTC B1033, B1034 [UNIT FAIL] CRASH ZONE SENSOR

Main “G” sensor generates signal voltage when it detects deceleration beyond the specified level caused by
vehicle frontal collision.

OPERATION

When ACU define the both signal voltage of the “G” sensor and the safing sensor to be that of collision which
exceeds specified level, the driving circuit switches on and feed the electric ignitor of both driver and passen-
ger  air bags and pre-tensioner seat belt.

STRUCTURE

Integrated type of the G sensor element for frontal collision with output terminals for signal voltage.

INSTALLATION

Crash zone sensor is installed on the radiator core support assembly with fixed nuts.

DTC Logic

INFOID:0000000000959622

DTC DETECTION LOGIC

With CONSULT-lll

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

Without CONSULT-lll

Warning Lamp Flash Code Chart

DTC CONFIRMATION PROCEDURE (With CONSULT-lll)

1.

IGNITION SWITCH

Turn ignition switch ON.

>> GO TO 2.

2.

CONSULT-LLL

Select “DIAG MODE” with CONSULT-lll.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1033
B1034

CRASH ZONE SEN-
SOR 
[UNIT FAIL]

crash zone sensor is out of order.

1.

Visually check the wiring harness-
connection.

2.

Replace the harness if it has visi-
ble damage.

3.

Replace crash zone sensor.

4.

Replace diagnosis sensor unit 
(ACU).

JMHIA0036GB

 

 

 

 

 

 

 

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