2009 INFINITI QX56 Factory Service Manual

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Page 3561 of 4171

INFINITI QX56 2009 Factory Service Manual B1XXX AIR BAG DIAGNOSIS SENSOR UNITSRC-63
< COMPONENT DIAGNOSIS >
C
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SRC
N
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2.IGNITION SWITCH
After air bag warning lamp lights for 7 seconds, turn ignition switch OFF within 1

Page 3562 of 4171

INFINITI QX56 2009 Factory Service Manual SRC-64
< COMPONENT DIAGNOSIS >
B1023 PASSENGER AIR BAG OFF INDICATOR
B1023 PASSENGER AIR BAG OFF INDICATOR
DescriptionINFOID:0000000003775237
DTC B1023 FRONT PASSENGER AIR BAG OFF INDICATOR
The front

Page 3563 of 4171

INFINITI QX56 2009 Factory Service Manual B1023 PASSENGER AIR BAG OFF INDICATORSRC-65
< COMPONENT DIAGNOSIS >
C
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M A
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>> GO TO 2
2.IGNITION SWITCH
After air bag warning lamp lights for 7 seconds, turn ignition switch

Page 3564 of 4171

INFINITI QX56 2009 Factory Service Manual SRC-66
< COMPONENT DIAGNOSIS >
B1023 PASSENGER AIR BAG OFF INDICATOR
>>END
Revision: December 20092009 QX56

Page 3565 of 4171

INFINITI QX56 2009 Factory Service Manual B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM
SRC-67
< COMPONENT DIAGNOSIS >
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B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM
DescriptionINFOID:0000000005867460
DTC B1

B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM
SRC-67
< COMPONENT DIAGNOSIS >
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B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM
DescriptionINFOID:0000000005867460
DTC B1017 – B1022 OCCUPANT CL ASSIFICATION SYSTEM (OCS)
The OCS control unit is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit will mon-
itor the OCS for failures and interruptions in co mmunication between the OCS control unit and the air bag
diagnosis sensor unit.
PA R T L O C AT I O N
Refer to SRC-7, "SRS Component Parts Location".
DTC LogicINFOID:0000000005867461
DTC DETECTION LOGIC
With CONSULT-lll
Without CONSULT-lll
CONSULT-III name DTC DTC detecting condition Repair order
OCCUPANT SENS C/U [UNIT FAIL] B1017 The OCS control unit is malfunctioning. 1. Replace the RH front seat cushion assembly.
Do not disassemble the seat cushion assem-
bly.
B1021
B1020 The OCS control unit is malfunctioning. 1. Replace the harness if it has visible damage.
2. Replace the RH front seat cushion assembly.
Do not disassemble the seat cushion assem-
bly.
3. Replace the RH front seat belt assembly.
OCCUPANT SENS [UNIT FAIL] B1018The OCS sensor is malfunctioning. 1. Visually check the wiring harness connection
to the OCS sensor.
2. Replace the RH front seat cushion assembly. Do not disassemble the seat cushion assem-
bly.
BELT TENSION SENS [UNIT FAIL] B1019The belt tension sensor is malfunctioning. 1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the RH front seat belt assembly.
4. Replace the RH front seat cushion assembly. Do not disassemble the seat cushion assem-
bly.
5. Replace the related harness.
OCCUPANT SENS C/U [COMM FAIL] B1022Communication between the OCS control
unit and the air bag diagnosis sensor unit is
interrupted.
1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace the RH front seat cushion assembly.
Do not disassemble the seat cushion assem-
bly.
4. Replace the air bag diagnosis sensor unit.
5. Replace the related harness.
WHIA0211E
Revision: December 20092009 QX56

Page 3566 of 4171

INFINITI QX56 2009 Factory Service Manual SRC-68
< COMPONENT DIAGNOSIS >
B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM
DTC CONFIRMATION PROCEDURE (With CONSULT-lll)
1.INSPECTION START
Turn ignition switch ON.
>> GO TO 2.
2.CHECK SELF-DIAG RE

Page 3567 of 4171

INFINITI QX56 2009 Factory Service Manual B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM
SRC-69
< COMPONENT DIAGNOSIS >
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M A
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N
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2.HARNESS CONNECTOR
Is there any visible damage to the OCS sub-harness connec tor (DTC B

Page 3568 of 4171

INFINITI QX56 2009 Factory Service Manual SRC-70
< COMPONENT DIAGNOSIS >
B1017 – B1022 OCCUPANT CLASSIFICATION SYSTEM
Is the belt tension sensor harness connector disconnected?
YES or NO
YES >> Connect the harness. Clear the DTC.
NO >> GO

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