Nissan Qashqai (2007-2010). Manual - part 805

B1120 SATELLITE SENS LH

SRC-107

< COMPONENT DIAGNOSIS >

C

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G

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B1120 SATELLITE SENS LH

Description

INFOID:0000000001069852

DTC B1120 [COMM FAIL] SATELLITE SENS LH

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

OPERATION

When ACU defines 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 the side air bag and
curtain air bag.

STRUCTURE

Integrated type of the “G” sensor element for side collision with output terminals for signal voltage.

INSTALLATION

Satellite sensor is installed at the underside of center pillar with fixed nuts.

DTC Logic

INFOID:0000000001069853

DTC DETECTION LOGIC

With CONSULT-III

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

Without CONSULT-III

Warning Lamp Flash Code Chart

DTC CONFIRMATION PROCEDURE (With CONSULT-III)

1.

IGNITION SWITCH

Turn ignition switch ON.

>> GO TO 2.

2.

CONSULT-III

Check the “SELF-DIAG” RESULT with CONSULT-III.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1120

SATELLITE SENS LH 
[COMM FAIL]

LH satellite sens is out of order.

1.

Visually check the wiring harness-
connection.

2.

Replace the harness if it has visi-
ble damage.

3.

Replace LH satellite sens.

4.

Replace diagnosis sensor unit 
(ACU).

JMHIA0040GB

SRC-108

< COMPONENT DIAGNOSIS >

B1120 SATELLITE SENS LH

>> GO TO 3.

3.

DTC CODE

If DTC is detected. Refer to 

SRC-108

>> END

DTC CONFIRMATION PROCEDURE (Without CONSULT-III)

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-108

>> END

Diagnosis Procedure (Component diagnosis)

INFOID:0000000001069854

B1120 SATELLITE SENS LH

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< COMPONENT DIAGNOSIS >

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With CONSULT-III

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

Are connections of harness connectors and terminals correct?

YES

>> GO TO 2.

NO

>> Repair or replace harness connectors.

2.

CHECK WIRING HARNESS

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

YES

>> GO TO 3.

NO

>> Replace wiring harness.

3.

CHECK SATELLITE SENSOR

Is “SATELLITE SENSOR” displayed on CONSULT-III?

YES

>> Replace satellite sensor.

NO

>> Replace diagnosis sensor unit (ACU).

SRC-110

< COMPONENT DIAGNOSIS >

B1122, B1123, B1124, B1125, B1126, B1127 DIAGNOSIS SENSOR UNIT

B1122, B1123, B1124, B1125, B1126, B1127 DIAGNOSIS SENSOR UNIT

Description

INFOID:0000000001069855

DTC B1122, B1123, B1124, B1125, B1126, B1127 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-III”.

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 operate properly. 

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:0000000001069856

DTC DETECTION LOGIC

With CONSULT-III

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

Without CONSULT-III

Warning Lamp Flash Code Chart

DTC CONFIRMATION PROCEDURE (With CONSULT-III)

1.

IGNITION SWITCH

Turn ignition switch ON.

>> GO TO 2.

2.

CONSULT-III

Check the “SELF-DIAG” RESULT with CONSULT-III.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

B1122
B1123
B1124
B1125
B1126
B1127

DIAGNOSIS SENSOR 
UNIT

Diagnosis sensor unit is out of order.

1.

Replace diagnosis sensor unit 
(ACU).

JMHIA0034GB